PaperBLAST – Find papers about a protein or its homologs

 

PaperBLAST

PaperBLAST Hits for sp|Q9I2Q2|METH_PSEAE Methionine synthase OS=Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) OX=208964 GN=metH PE=3 SV=1 (1234 a.a., MSSPLTDRSA...)

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Find functional residues: SitesBLAST

Search for conserved domains

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Compare to protein structures

Predict transmenbrane helices: Phobius

Predict protein localization: PSORTb

Find homologs in fast.genomics

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Found 254 similar proteins in the literature:

NP_250534 B12-dependent methionine synthase from Pseudomonas aeruginosa PAO1
PA1843 methionine synthase from Pseudomonas aeruginosa PAO1
100% identity, 100% coverage

Avin_29240 5-methyltetrahydrofolate--homocysteine methyltransferase, MetH from Azotobacter vinelandii AvOP
89% identity, 96% coverage

Achr_18530 methionine synthase from Azotobacter chroococcum NCIMB 8003
89% identity, 100% coverage

PP_2375 5-methyltetrahydrofolate--homocysteine methyltransferase from Pseudomonas putida KT2440
88% identity, 100% coverage

PSPPH_2620 5-methyltetrahydrofolate--homocysteine methyltransferase from Pseudomonas syringae pv. phaseolicola 1448A
85% identity, 99% coverage

MDG893_RS02235 methionine synthase from Marinobacter algicola DG893
70% identity, 100% coverage

ABAYE2822 methionine synthase (B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase, repressor of metE and metF) from Acinetobacter baumannii AYE
69% identity, 99% coverage

ACIAD1045 methionine synthase (B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase, repressor of metE and metF) from Acinetobacter sp. ADP1
68% identity, 99% coverage

A1S_0971 B12-dependent methionine synthase from Acinetobacter baumannii ATCC 17978
69% identity, 97% coverage

JHW33_RS14885 methionine synthase from Rahnella aceris
68% identity, 99% coverage

GQR50_20625 methionine synthase from Aeromonas hydrophila
68% identity, 100% coverage

YPO3722 5-Methyltetrahydrofolate--homocysteine methyltransferase from Yersinia pestis CO92
y0020 B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase, repressor of metE and metF from Yersinia pestis KIM
68% identity, 99% coverage

ECs4937 B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase from Escherichia coli O157:H7 str. Sakai
68% identity, 99% coverage

STM14_5035 methionine synthase from Salmonella enterica subsp. enterica serovar Typhimurium str. 14028S
68% identity, 99% coverage

STY4405 B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase from Salmonella enterica subsp. enterica serovar Typhi str. CT18
68% identity, 99% coverage

MetH / b4019 cobalamin-dependent methionine synthase (EC 2.1.1.13) from Escherichia coli K-12 substr. MG1655 (see 60 papers)
metH / P13009 cobalamin-dependent methionine synthase (EC 2.1.1.13) from Escherichia coli (strain K12) (see 58 papers)
METH_ECOLI / P13009 Methionine synthase; 5-methyltetrahydrofolate--homocysteine methyltransferase; Methionine synthase, vitamin-B12-dependent; MS; EC 2.1.1.13 from Escherichia coli (strain K12) (see 4 papers)
metH methionine synthase; EC 2.1.1.13 from Escherichia coli K12 (see 15 papers)
NP_418443 cobalamin-dependent methionine synthase from Escherichia coli str. K-12 substr. MG1655
b4019 B12-dependent methionine synthase from Escherichia coli str. K-12 substr. MG1655
68% identity, 99% coverage

c4976 5-methyltetrahydrofolate--homocysteine methyltransferase from Escherichia coli CFT073
68% identity, 99% coverage

Q7MHB1 Methionine synthase from Vibrio vulnificus (strain YJ016)
68% identity, 99% coverage

W5S_RS19920 methionine synthase from Pectobacterium parmentieri
68% identity, 98% coverage

S3645 B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase from Shigella flexneri 2a str. 2457T
68% identity, 99% coverage

VC0390 5-methyltetrahydrofolate--homocysteine methyltransferase from Vibrio cholerae O1 biovar eltor str. N16961
67% identity, 99% coverage

VIBHAR_03712 cobalamin-dependent methionine synthase from Vibrio harveyi ATCC BAA-1116
67% identity, 99% coverage

Alvin_1622 methionine synthase from Allochromatium vinosum DSM 180
65% identity, 98% coverage

SO1030 5-methyltetrahydrofolate--homocysteine methyltransferase from Shewanella oneidensis MR-1
64% identity, 98% coverage

MSMEG_4185 methionine synthase from Mycobacterium smegmatis str. MC2 155
MSMEG_4185 methionine synthase from Mycolicibacterium smegmatis MC2 155
64% identity, 98% coverage

MPHLCCUG_RS15920 methionine synthase from Mycolicibacterium phlei
64% identity, 97% coverage

MAV_2379 methionine synthase from Mycobacterium avium 104
63% identity, 97% coverage

A5717_31970 methionine synthase from Mycolicibacterium porcinum
63% identity, 98% coverage

BP3594 5-methyltetrahydrofolate--homocysteine methyltransferase from Bordetella pertussis Tohama I
63% identity, 96% coverage

BAB1_0188 Dihydropteroate synthase, DHPS:Homocysteine S-methyltransferase:Cobalamin-dependent methionine synthase, B12-binding:Vitamin ... from Brucella melitensis biovar Abortus 2308
63% identity, 97% coverage

BCAN_A0193 methionine synthase from Brucella canis ATCC 23365
62% identity, 97% coverage

BR0188 5-methyltetrahydrofolate--homocysteine methyltransferase from Brucella suis 1330
62% identity, 97% coverage

SAMCFNEI73_Ch3399 methionine synthase from Sinorhizobium americanum
64% identity, 98% coverage

BMEI1759 5-METHYLTETRAHYDROFOLATE--HOMOCYSTEINE METHYLTRANSFERASE from Brucella melitensis 16M
62% identity, 97% coverage

AWC27_RS09650 methionine synthase from Mycobacterium szulgai
62% identity, 98% coverage

SMc03112 PROBABLE 5-METHYLTETRAHYDROFOLATE--HOMOCYSTEINE METHYLTRANSFERASE (METHIONINE SYNTHASE, VITAMIN-B12 DEPENDENT ISOZYME) PROTEIN from Sinorhizobium meliloti 1021
63% identity, 98% coverage

BMEA_RS00885 methionine synthase from Brucella melitensis ATCC 23457
62% identity, 97% coverage

MAB_2129 methionine synthase from Mycobacteroides abscessus ATCC 19977
63% identity, 97% coverage

MAB_2129 5-methyltetrahydrofolate--homocysteine methyltransferase MetH from Mycobacterium abscessus ATCC 19977
63% identity, 97% coverage

MCNS_30990 methionine synthase from Mycobacterium conspicuum
62% identity, 97% coverage

MMAR_4825 5-methyltetrahydrofolate--homocysteine methyltransferase, MetH from Mycobacterium marinum M
63% identity, 98% coverage

LBL_4107 Methionine synthase from Leptospira borgpetersenii serovar Hardjo-bovis L550
58% identity, 98% coverage

LIC20085 methionine synthase from Leptospira interrogans serovar Copenhageni str. Fiocruz L1-130
LB108 B12-dependent methionine synthase from Leptospira interrogans serovar lai str. 56601
LB_108 methionine synthase from Leptospira interrogans serovar Lai str. 56601
58% identity, 98% coverage

LEPBI_II0183 Methionine synthase from Leptospira biflexa serovar Patoc strain 'Patoc 1 (Paris)'
58% identity, 98% coverage

Q54P92 Methionine synthase from Dictyostelium discoideum
55% identity, 97% coverage

Clocel_2896 methionine synthase from Clostridium cellulovorans 743B
56% identity, 98% coverage

Cbs_3100 methionine synthase from Clostridium beijerinckii ATCC 35702
56% identity, 98% coverage

XP_011960415 methionine synthase isoform X3 from Ovis aries
56% identity, 97% coverage

XP_010818713 methionine synthase isoform X1 from Bos taurus
56% identity, 96% coverage

METH_RAT / Q9Z2Q4 Methionine synthase; MS; 5-methyltetrahydrofolate--homocysteine methyltransferase; Cobalamin-dependent methionine synthase; Vitamin-B12 dependent methionine synthase; EC 2.1.1.13 from Rattus norvegicus (Rat) (see 2 papers)
Q9Z2Q4 methionine synthase (EC 2.1.1.13) from Rattus norvegicus (see paper)
56% identity, 97% coverage

NP_110491 methionine synthase from Rattus norvegicus
G3V8A4 Methionine synthase from Rattus norvegicus
56% identity, 97% coverage

CAC0578 Cobalamine-dependent methionine synthase I (methyltransferase and cobalamine-binding domain) from Clostridium acetobutylicum ATCC 824
54% identity, 98% coverage

MTR / Q99707 cobalamin-dependent methionine synthase (EC 2.1.1.13) from Homo sapiens (see 5 papers)
METH_HUMAN / Q99707 Methionine synthase; MS; 5-methyltetrahydrofolate--homocysteine methyltransferase; Cobalamin-dependent methionine synthase; Vitamin-B12 dependent methionine synthase; EC 2.1.1.13 from Homo sapiens (Human) (see 7 papers)
Q99707 methionine synthase (EC 2.1.1.13) from Homo sapiens (see paper)
55% identity, 97% coverage

V22_33860 methionine synthase from Calycomorphotria hydatis
55% identity, 99% coverage

A6H5Y3 Methionine synthase from Mus musculus
55% identity, 97% coverage

SPRG_02541 methionine synthase from Saprolegnia parasitica CBS 223.65
55% identity, 96% coverage

XP_011542496 methionine synthase isoform X1 from Homo sapiens
55% identity, 88% coverage

PSHAa2222 putative B12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase (C terminal) from Pseudoalteromonas haloplanktis TAC125
65% identity, 71% coverage

BP1026B_I3121 methionine synthase from Burkholderia pseudomallei 1026b
63% identity, 72% coverage

M0M57_09420 methionine synthase from Flavobacterium azooxidireducens
62% identity, 72% coverage

XC_RS13715 methionine synthase from Xanthomonas campestris pv. campestris str. 8004
61% identity, 72% coverage

RSP_3346 5-methyltetrahydrofolate--homocysteine methyltransferase from Rhodobacter sphaeroides 2.4.1
63% identity, 72% coverage

CC2137, CC_2137 5-methyltetrahydrofolate--homocysteine methyltransferase from Caulobacter crescentus CB15
CCNA_02221 methionine synthase I metH from Caulobacter crescentus NA1000
64% identity, 71% coverage

BTH_I0357 5-methyltetrahydrofolate--homocysteine methyltransferase from Burkholderia thailandensis E264
64% identity, 72% coverage

RSc0294 PROBABLE 5-METHYLTETRAHYDROFOLATE--HOMOCYSTEINE METHYLTRANSFERASE (METHIONINE SYNTHASE, VITAMIN-B12 DEPENDENT ISOZYME) PROTEIN from Ralstonia solanacearum GMI1000
63% identity, 72% coverage

BPHYT_RS02305 methionine synthase from Paraburkholderia phytofirmans PsJN
63% identity, 72% coverage

Odosp_3416 methionine synthase from Odoribacter splanchnicus DSM 20712
48% identity, 99% coverage

BT_0180 methionine synthase from Bacteroides thetaiotaomicron VPI-5482
BT0180 5-methyltetrahydrofolate-homocysteine methyltransferase from Bacteroides thetaiotaomicron VPI-5482
58% identity, 74% coverage

bglu_1g32290 Methionine synthase from Burkholderia glumae BGR1
63% identity, 72% coverage

VARPA_RS01000 methionine synthase from Variovorax paradoxus EPS
61% identity, 73% coverage

BF638R_RS14560, BF9343_2953 methionine synthase from Bacteroides fragilis 638R
57% identity, 74% coverage

XP_006516724 methionine synthase isoform X1 from Mus musculus
54% identity, 79% coverage

Swit_2399 methionine synthase (B12-dependent) from Sphingomonas wittichii RW1
58% identity, 74% coverage

Cenrod_2368 methionine synthase from Candidatus Symbiobacter mobilis CR
57% identity, 71% coverage

PPSC2_RS42420 methionine synthase from Paenibacillus polymyxa
40% identity, 96% coverage

MLD56_13735 methionine synthase from Paenibacillus peoriae
40% identity, 96% coverage

PPE_RS12455 methionine synthase from Paenibacillus polymyxa E681
39% identity, 96% coverage

C1A50_RS13320 methionine synthase from Paenibacillus polymyxa
40% identity, 96% coverage

GBAA4478 5-methyltetrahydrofolate--homocysteine methyltransferase from Bacillus anthracis str. 'Ames Ancestor'
38% identity, 96% coverage

3bulA / P13009 E. Coli i690c/g743c meth c-terminal fragment (649-1227) (see paper)
63% identity, 47% coverage

4cczA / Q99707 Crystal structure of human 5-methyltetrahydrofolate-homocysteine methyltransferase, the homocysteine and folate binding domains
56% identity, 51% coverage

PITG_01804 methionine synthase from Phytophthora infestans T30-4
58% identity, 46% coverage

WP_108075232 methionine synthase from Vitiosangium sp. GDMCC 1.1324
36% identity, 96% coverage

B4DST3 Methionine synthase from Homo sapiens
52% identity, 47% coverage

TTH_RS03220 methionine synthase from Thermus thermophilus HB8
34% identity, 96% coverage

SYNPCC7002_A2466 5-methyltetrahydrofolate--homocysteine methyltransferase (methionine synthase) from Synechococcus sp. PCC 7002
33% identity, 97% coverage

SY28_RS08890 methionine synthase from Meiothermus taiwanensis
33% identity, 97% coverage

SSPN_RS0127935 methionine synthase from Saccharopolyspora spinosa NRRL 18395
32% identity, 97% coverage

WP_159536573 methionine synthase from Streptomyces sp. Tu 3180
32% identity, 96% coverage

SCO1657 methionine synthase from Streptomyces coelicolor A3(2)
32% identity, 97% coverage

NIS_RS03035 methionine synthase from Nitratiruptor sp. SB155-2
32% identity, 96% coverage

ETSB_0394 methionine synthase from cyanobacterium endosymbiont of Epithemia turgida isolate EtSB Lake
31% identity, 95% coverage

tll1027 5-methyltetrahydrofolate--homocysteine methyltransferase from Thermosynechococcus elongatus BP-1
32% identity, 96% coverage

RGRSB_0352 methionine synthase from cyanobacterium endosymbiont of Rhopalodia gibberula
31% identity, 96% coverage

EET03_RS15385 methionine synthase from Mycobacterium innocens
33% identity, 96% coverage

O33259 Methionine synthase from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Rv2124c Probable 5-methyltetrahydrofolate--homocystein methyltransferase MetH (Methionine synthase, vitamin-B12 dependent isozyme) (MS) from Mycobacterium tuberculosis H37Rv
32% identity, 96% coverage

MXEN_01507 methionine synthase from Mycobacterium xenopi RIVM700367
33% identity, 96% coverage

AWC07_11205 methionine synthase from Mycobacterium gastri
32% identity, 96% coverage

metH / Q8NQD1 cobalamin-dependent methionine synthase (EC 2.1.1.13) from Corynebacterium glutamicum (strain ATCC 13032 / DSM 20300 / BCRC 11384 / JCM 1318 / LMG 3730 / NCIMB 10025) (see paper)
32% identity, 96% coverage

SYNW1238 putative methionine synthase from Synechococcus sp. WH 8102
31% identity, 95% coverage

CDN37_RS02225 methionine synthase from Mycobacterium persicum
32% identity, 96% coverage

cg1701 homocysteine methyltransferase from Corynebacterium glutamicum ATCC 13032
32% identity, 95% coverage

ML1307 5-methyltetrahydrofolate-homocysteine methyltransferase from Mycobacterium leprae TN
32% identity, 96% coverage

PMM0877 putative methionine synthase from Prochlorococcus marinus sp. MED4
30% identity, 95% coverage

PMT0729 putative methionine synthase from Prochlorococcus marinus str. MIT 9313
30% identity, 96% coverage

8g3hA / A0A0A2XCD7 Structure of cobalamin-dependent methionine synthase (meth) in a resting state (see paper)
37% identity, 67% coverage

XC_2724 5-methyltetrahydrofolate-homocysteine methyl transferase from Xanthomonas campestris pv. campestris str. 8004
66% identity, 27% coverage

PXO_RS13400 homocysteine S-methyltransferase family protein from Xanthomonas oryzae pv. oryzae PXO99A
66% identity, 27% coverage

PSHAa2223 putativeB12-dependent homocysteine-N5-methyltetrahydrofolate transmethylase (N terminal) from Pseudoalteromonas haloplanktis TAC125
62% identity, 29% coverage

PFREUD_11340 methionine synthase from Propionibacterium freudenreichii subsp. shermanii CIRM-BIA1
30% identity, 96% coverage

RSc0295 PROBABLE 5-METHYLTETRAHYDROFOLATE--HOMOCYSTEINE METHYLTRANSFERASE (METHIONINE SYNTHASE, VITAMIN-B12 DEPENDENT ISOZYME) PROTEIN from Ralstonia solanacearum GMI1000
64% identity, 28% coverage

MT2183 5-methyltetrahydrofolate-homocysteine methyltransferase from Mycobacterium tuberculosis CDC1551
36% identity, 64% coverage

BPHYT_RS02310 homocysteine S-methyltransferase family protein from Paraburkholderia phytofirmans PsJN
63% identity, 27% coverage

BTH_I0358 Homocysteine S-methyltransferase, putative from Burkholderia thailandensis E264
63% identity, 27% coverage

BP1026B_I3120 homocysteine S-methyltransferase family protein from Burkholderia pseudomallei 1026b
63% identity, 27% coverage

bglu_1g32280 Methionine synthase I (cobalamin-dependent), methyltransferase domain protein from Burkholderia glumae BGR1
62% identity, 27% coverage

Pnuc_1980 methionine synthase from Polynucleobacter sp. QLW-P1DMWA-1
61% identity, 28% coverage

CC2138, CC_2138 5-methyltetrahydrofolate--homocysteine methyltransferase from Caulobacter crescentus CB15
CCNA_02222 5-methyltetrahydrofolate--homocysteine methyltransferase homocysteine-binding subunit from Caulobacter crescentus NA1000
56% identity, 29% coverage

3k13C / Q8ABD0 Structure of the pterin-binding domain metr of 5- methyltetrahydrofolate-homocysteine methyltransferase from bacteroides thetaiotaomicron
66% identity, 23% coverage

HWN72_14090 homocysteine S-methyltransferase family protein from Novosphingobium sp. HR1a
57% identity, 27% coverage

Cenrod_2596 homocysteine S-methyltransferase family protein from Candidatus Symbiobacter mobilis CR
56% identity, 27% coverage

Swit_2400 methionine synthase (B12-dependent) from Sphingomonas wittichii RW1
57% identity, 27% coverage

Dde_2115 homocysteine S-methyltransferase family protein from Oleidesulfovibrio alaskensis G20
31% identity, 68% coverage

Dde_2115 5-methyltetrahydrofolate-homocysteine methyltransferase, putative from Desulfovibrio desulfuricans G20
31% identity, 68% coverage

DvMF_0476 vitamin B12-dependent methionine synthase without a reactivation domain (EC 2.1.1.13) from Desulfovibrio vulgaris Miyazaki F
DvMF_0476 homocysteine S-methyltransferase from Desulfovibrio vulgaris str. Miyazaki F
31% identity, 70% coverage

CD3596 putative homocysteine S-methyltransferase from Clostridium difficile 630
29% identity, 69% coverage

CDR20291_3434 putative homocysteine S-methyltransferase from Clostridium difficile R20291
CDR20291_3434 homocysteine S-methyltransferase family protein from Clostridioides difficile R20291
29% identity, 69% coverage

GM661_16185 homocysteine S-methyltransferase family protein from Iocasia fonsfrigidae
29% identity, 67% coverage

DVU1585 Methionine synthase (cobalamin-dependent) (EC 2.1.1.13) from Desulfovibrio vulgaris Hildenborough JW710
DVU1585 vitamin B12-dependent methionine synthase family protein from Desulfovibrio vulgaris Hildenborough
31% identity, 70% coverage

TEL01S_RS06970 homocysteine S-methyltransferase family protein from Pseudothermotoga elfii DSM 9442 = NBRC 107921
28% identity, 70% coverage

Q9WYA5 methionine synthase (EC 2.1.1.13) from Thermotoga maritima (see paper)
TM0268 5-methyltetrahydrofolate S-homocysteine methyltransferase from Thermotoga maritima MSB8
28% identity, 70% coverage

R1CGJ7 Methionine synthase from Emiliania huxleyi
52% identity, 23% coverage

F7O84_RS02745 homocysteine S-methyltransferase family protein from Candidatus Galacturonibacter soehngenii
29% identity, 68% coverage

Nmar_1267 Methionine synthase from Nitrosopumilus maritimus SCM1
28% identity, 68% coverage

8sseA / Q5SKM5 Methionine synthase, c-terminal fragment, cobalamin and reactivation domains from thermus thermophilus hb8 (see paper)
32% identity, 43% coverage

3bofA / Q9WYA5 Cobalamin-dependent methionine synthase (1-566) from thermotoga maritima complexed with zn2+ and homocysteine (see paper)
28% identity, 48% coverage

BT0249 5-methyltetrahydrofolate--homocysteine methyltransferase or methionine synthase from Bacteroides thetaiotaomicron VPI-5482
40% identity, 23% coverage

5vooA / Q5SKM5 Methionine synthase folate-binding domain with methyltetrahydrofolate from thermus thermophilus hb8 (see paper)
36% identity, 23% coverage

GSU2974 methylenetetrahydrofolate reductase family protein from Geobacter sulfurreducens PCA
30% identity, 26% coverage

LGS26_08025 bifunctional homocysteine S-methyltransferase/methylenetetrahydrofolate reductase from Dissulfurimicrobium hydrothermale
31% identity, 28% coverage

BC_4251 bifunctional homocysteine S-methyltransferase/methylenetetrahydrofolate reductase from Bacillus cereus ATCC 14579
28% identity, 26% coverage

A8FBU4 Homocysteine methyltransferase from Bacillus pumilus (strain SAFR-032)
29% identity, 26% coverage

YITJ_BACSU / O06745 Bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase; EC 2.1.1.10; EC 1.5.1.20 from Bacillus subtilis (strain 168) (see paper)
29% identity, 26% coverage

gbs2004 unknown from Streptococcus agalactiae NEM316
27% identity, 26% coverage

MA1617 methanol-5-hydroxybenzimidazolylcobamide co-methyltransferase, isozyme 3 from Methanosarcina acetivorans C2A
32% identity, 16% coverage

BT_0340 trimethylamine corrinoid protein 2 (TCP 2) from Bacteroides thetaiotaomicron VPI-5482
33% identity, 17% coverage

mtgC / Q24SP8 glycine betaine-specific corrinoid protein from Desulfitobacterium hafniense (strain Y51) (see paper)
DSY3155 hypothetical protein from Desulfitobacterium hafniense Y51
33% identity, 15% coverage

MA4558 hypothetical protein (multi-domain) from Methanosarcina acetivorans C2A
MA_4558, WP_011024431 uroporphyrinogen decarboxylase family protein from Methanosarcina acetivorans C2A
31% identity, 17% coverage

LMOf2365_1702 bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase protein from Listeria monocytogenes str. 4b F2365
lmo1678 similar to 5-methyltetrahydrofolate-homocysteine methyltransferase (metH) from Listeria monocytogenes EGD-e
26% identity, 32% coverage

SpAn4DRAFT_2140 B12-binding domain-containing protein from Sporomusa ovata
32% identity, 17% coverage

MSMTP_RS14200, WP_048180685 methyltransferase cognate corrinoid protein from Methanosarcina sp. MTP4
34% identity, 14% coverage

MM0174 Methanol corrinoid protein from Methanosarcina mazei Goe1
34% identity, 14% coverage

H6NQX3 Bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase protein from Paenibacillus mucilaginosus 3016
29% identity, 26% coverage

ELI_2004 B12-binding domain-containing protein from Eubacterium callanderi
34% identity, 15% coverage

MA4391 methanol-5-hydroxybenzimidazolylcobamide co-methyltransferase, isozyme 2 from Methanosarcina acetivorans C2A
32% identity, 16% coverage

AF_0006 corrinoid protein from Archaeoglobus fulgidus DSM 4304
34% identity, 13% coverage

WP_049796371 methyltransferase cognate corrinoid protein from Methanomassiliicoccus luminyensis B10
34% identity, 15% coverage

Q8PXZ3 Methanol corrinoid protein from Methanosarcina mazei (strain ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88)
MM1073 Methanol corrinoid protein from Methanosarcina mazei Goe1
30% identity, 18% coverage

MSMTP_RS00505, WP_048177073 uroporphyrinogen decarboxylase family protein from Methanosarcina sp. MTP4
30% identity, 16% coverage

METHO_RS06035, WP_015324657 uroporphyrinogen decarboxylase family protein from Methanomethylovorans hollandica DSM 15978
32% identity, 14% coverage

mtaC / Q46EH4 Co(I) methanol-specific corrinoid protein from Methanosarcina barkeri (strain Fusaro / DSM 804) (see 6 papers)
MTAC_METBF / Q46EH4 Methanol--corrinoid protein; Methanol:corrinoid methyltransferase 1 subunit of 27 kDa; MT1 subunit 27 kDa from Methanosarcina barkeri (strain Fusaro / DSM 804) (see 2 papers)
Q46EH4 methanol-corrinoid protein Co-methyltransferase (subunit 1/3) (EC 2.1.1.90) from Methanosarcina barkeri (see paper)
2i2xB / Q46EH4 Crystal structure of methanol:cobalamin methyltransferase complex mtabc from methanosarcina barkeri (see paper)
32% identity, 16% coverage

CBO1494 dimethylamine corrinoid protein from Clostridium botulinum A str. ATCC 3502
32% identity, 16% coverage

SPO1884 betaine--homocysteine S-methyltransferase from Ruegeria pomeroyi DSS-3
30% identity, 25% coverage

Q8THX4 tetrahydromethanopterin S-methyltransferase (EC 2.1.1.86) from Methanosarcina acetivorans (see paper)
MA4384 hypothetical protein (multi-domain) from Methanosarcina acetivorans C2A
MA_4384, WP_011024263 uroporphyrinogen decarboxylase family protein from Methanosarcina acetivorans C2A
31% identity, 18% coverage

MA0456 methanol-5-hydroxybenzimidazolylcobamide co-methyltransferase, isozyme 1 from Methanosarcina acetivorans C2A
31% identity, 16% coverage

MA0527 dimethylamine corrinoid protein from Methanosarcina acetivorans C2A
39% identity, 15% coverage

Tph_c05860 B12-binding domain-containing protein from Thermacetogenium phaeum DSM 12270
35% identity, 12% coverage

SXYL_02643 bifunctional homocysteine S-methyltransferase/methylenetetrahydrofolate reductase from Staphylococcus xylosus
24% identity, 26% coverage

MM2052 dimethylamine corrinoid protein from Methanosarcina mazei Goe1
38% identity, 16% coverage

MM1438 Monomethylamine corrinoid protein from Methanosarcina mazei Goe1
32% identity, 16% coverage

MM_3334 methyltransferase cognate corrinoid protein from Methanosarcina mazei Go1
MM3334 Monomethylamine corrinoid protein from Methanosarcina mazei Goe1
32% identity, 14% coverage

MSMTP_RS14235, WP_048180700 uroporphyrinogen decarboxylase family protein from Methanosarcina sp. MTP4
31% identity, 17% coverage

MM_1438 methyltransferase cognate corrinoid protein from Methanosarcina mazei Go1
32% identity, 14% coverage

PGA1_c13370 Methionine synthase component, methyltransferase domain (EC:2.1.1.13) from Phaeobacter inhibens DSM 17395
PGA1_c13370 betaine--homocysteine S-methyltransferase from Phaeobacter inhibens DSM 17395
28% identity, 27% coverage

MM2961 dimethylamine corrinoid protein from Methanosarcina mazei Goe1
37% identity, 16% coverage

SAR0354 conserved hypothetical protein from Staphylococcus aureus subsp. aureus MRSA252
24% identity, 29% coverage

MA_0859, WP_048064984 methyltransferase cognate corrinoid protein from Methanosarcina acetivorans C2A
32% identity, 15% coverage

MA0859 hypothetical protein (multi-domain) from Methanosarcina acetivorans C2A
32% identity, 15% coverage

FKV42_RS08550, WP_154809803 corrinoid protein from Methanolobus vulcani
34% identity, 12% coverage

MM_1687 dimethylamine corrinoid protein MtbC from Methanosarcina mazei Go1
38% identity, 15% coverage

Q8PWE1 Methanol corrinoid protein MtaC from Methanosarcina mazei (strain ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88)
MM1648 Methanol corrinoid protein MtaC from Methanosarcina mazei Goe1
31% identity, 14% coverage

MA2971 monomethylamine corrinoid protein from Methanosarcina acetivorans C2A
35% identity, 15% coverage

SE2381 conserved hypothetical protein from Staphylococcus epidermidis ATCC 12228
23% identity, 26% coverage

MA0145 monomethylamine corrinoid protein from Methanosarcina acetivorans C2A
34% identity, 12% coverage

WP_052718253 corrinoid protein from Methanosarcina sp. MTP4
30% identity, 14% coverage

AMET1_1049 cobalamin-dependent protein from Methanonatronarchaeum thermophilum
30% identity, 16% coverage

7xcnP / O93659 Crystal structure of the mttb-mttc complex at 2.7 a resolution (see paper)
31% identity, 14% coverage

mtbC / O93657 dimethylamine corrinoid protein from Methanosarcina barkeri (see paper)
MTBC_METBA / O93657 Dimethylamine corrinoid protein from Methanosarcina barkeri (see 2 papers)
mtbC / GB|AAD14629.1 dimethylamine corrinoid protein from Methanosarcina barkeri (see 2 papers)
38% identity, 15% coverage

NWMN_0349 bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase protein from Staphylococcus aureus subsp. aureus str. Newman
SAUSA300_0358 putative 5-methyltetrahydrofolate--homocysteine methyltransferase from Staphylococcus aureus subsp. aureus USA300_FPR3757
SACOL0429 5-methyltetrahydrofolate--homocysteine methyltransferase, putative from Staphylococcus aureus subsp. aureus COL
24% identity, 29% coverage

mttC / O93659 trimethylamine-specific corrinoid protein from Methanosarcina barkeri (see paper)
MTTC_METBA / O93659 Trimethylamine corrinoid protein; TCP from Methanosarcina barkeri (see paper)
31% identity, 14% coverage

BP07_RS03260, WP_042685521 B12-binding domain-containing protein from Methermicoccus shengliensis DSM 18856
31% identity, 16% coverage

PGA1_c13350 Methionine synthase component, B12 binding and B12-binding cap domains (EC:2.1.1.13) from Phaeobacter inhibens DSM 17395
PGA1_c13350 corrinoid protein from Phaeobacter inhibens DSM 17395
32% identity, 18% coverage

SMc04342 PUTATIVE METHYLTRANSFERASE PROTEIN from Sinorhizobium meliloti 1021
31% identity, 20% coverage

MA4164 corrinoid protein from Methanosarcina acetivorans C2A
MA_4164, WP_011024052 corrinoid protein from Methanosarcina acetivorans C2A
34% identity, 12% coverage

MM1690 dimethylamine corrinoid protein from Methanosarcina mazei Goe1
33% identity, 12% coverage

SAMCFNEI73_Ch2207 betaine--homocysteine S-methyltransferase from Sinorhizobium americanum
29% identity, 25% coverage

Tph_c03600 B12-binding domain-containing protein from Thermacetogenium phaeum DSM 12270
30% identity, 14% coverage

SMc04325 CONSERVED HYPOTHETICAL PROTEIN from Sinorhizobium meliloti 1021
WP_003530700 betaine--homocysteine S-methyltransferase from Sinorhizobium meliloti MVII-I
28% identity, 26% coverage

MM2047 dimethylamine corrinoid protein from Methanosarcina mazei Goe1
30% identity, 14% coverage

CA_C0291 bifunctional homocysteine S-methyltransferase/methylenetetrahydrofolate reductase from Clostridium acetobutylicum ATCC 824
26% identity, 26% coverage

AMET1_0105 cobalamin-dependent protein from Methanonatronarchaeum thermophilum
36% identity, 11% coverage

AMET1_0748 cobalamin-dependent protein from Methanonatronarchaeum thermophilum
31% identity, 12% coverage

Dhaf_4611 cobalamin B12-binding domain protein from Desulfitobacterium hafniense DCB-2
38% identity, 12% coverage

WP_026394334 corrinoid protein from Acetobacterium dehalogenans DSM 11527
30% identity, 14% coverage

mtmC / O30641 monomethylamine corrinoid protein from Methanosarcina barkeri (see 2 papers)
MTMC1_METBA / O30641 Monomethylamine corrinoid protein 1; MMCP 1 from Methanosarcina barkeri (see paper)
36% identity, 13% coverage

D9S248 Methyltransferase cognate corrinoid protein from Thermosediminibacter oceani (strain ATCC BAA-1034 / DSM 16646 / JW/IW-1228P)
30% identity, 15% coverage

WP_019178518 B12-binding domain-containing protein from Methanomassiliicoccus luminyensis B10
32% identity, 14% coverage

METHO_RS01750, WP_015323796 corrinoid protein from Methanomethylovorans hollandica DSM 15978
28% identity, 15% coverage

Toce_1533 MtaA/CmuA family methyltransferase from Thermosediminibacter oceani DSM 16646
35% identity, 14% coverage

CAETHG_2844, CAETHG_2849 corrinoid protein from Clostridium autoethanogenum DSM 10061
32% identity, 14% coverage

TherJR_0143 MtaA/CmuA family methyltransferase from Thermincola potens JR
31% identity, 17% coverage

MTQC_EUBLI / P0DX07 Quaternary-amine-specific corrinoid protein; Corrinoid protein MtqC from Eubacterium limosum (see 2 papers)
36% identity, 12% coverage

3ezxA / O30641 Structure of methanosarcina barkeri monomethylamine corrinoid protein
34% identity, 13% coverage

MM1687 dimethylamine corrinoid protein from Methanosarcina mazei Goe1
37% identity, 14% coverage

Cbei_1828 bifunctional homocysteine S-methyltransferase/5,10-methylenetetrahydrofolate reductase protein from Clostridium beijerincki NCIMB 8052
26% identity, 26% coverage

Desti_5437 MtaA/CmuA family methyltransferase from Desulfomonile tiedjei DSM 6799
30% identity, 16% coverage

cmuA / CAB39403.1 CmuA protein from Methylorubrum extorquens (see paper)
Mchl_5697 methyltransferase MtaA/CmuA family from Methylobacterium chloromethanicum CM4
33% identity, 13% coverage

PGA1_c16040 Methionine synthase component, pterin-binding domain (EC:2.1.1.13) from Phaeobacter inhibens DSM 17395
PGA1_c16040 methyltetrahydrofolate cobalamin methyltransferase from Phaeobacter inhibens DSM 17395
28% identity, 20% coverage

D7024_14070 B12-binding domain-containing protein from Desulfofundulus salinus
31% identity, 15% coverage

Desti_5447 MtaA/CmuA family methyltransferase from Desulfomonile tiedjei DSM 6799
31% identity, 16% coverage

LOC107798163 homocysteine S-methyltransferase 1 from Nicotiana tabacum
27% identity, 25% coverage

4jgiB / Q8RPG0 1.5 angstrom crystal structure of a novel cobalamin-binding protein from desulfitobacterium hafniense dcb-2 (see paper)
33% identity, 11% coverage

R5D67_12200 homocysteine S-methyltransferase from Bacillus velezensis
27% identity, 25% coverage

M5595_18435 B12-binding domain-containing protein from Eubacterium limosum
31% identity, 14% coverage

HMT1 / Q9SDL7 homocysteine S-methyltransferase 1 (EC 2.1.1.10) from Arabidopsis thaliana (see 2 papers)
HMT1_ARATH / Q9SDL7 Homocysteine S-methyltransferase 1; S-methylmethionine:homocysteine methyltransferase 1; AtHMT-1; SMM:Hcy S-methyltransferase 1; EC 2.1.1.10 from Arabidopsis thaliana (Mouse-ear cress) (see 2 papers)
Q9SDL7 homocysteine S-methyltransferase (EC 2.1.1.10) from Arabidopsis thaliana (see paper)
AT3G25900 HMT-1; homocysteine S-methyltransferase from Arabidopsis thaliana
26% identity, 22% coverage

CAETHG_0145 methyltetrahydrofolate cobalamin methyltransferase from Clostridium autoethanogenum DSM 10061
28% identity, 19% coverage

mtsB / Q48925 methanethiol corrinoid protein from Methanosarcina barkeri (see 3 papers)
MTSB_METBA / Q48925 Methylated-thiol--corrinoid protein MtsB; Methylthiol:coenzyme M methyltransferase 30 kDa subunit from Methanosarcina barkeri (see paper)
25% identity, 14% coverage

PPE_RS23100 homocysteine S-methyltransferase from Paenibacillus polymyxa E681
26% identity, 26% coverage

HMT1 / A4ZGQ8 homocysteine methyltransferase (EC 2.1.1.10) from Brassica oleracea var. italica (see paper)
HMT1_BRAOT / A4ZGQ8 Homocysteine S-methyltransferase 1; BoHMT1; EC 2.1.1.10 from Brassica oleracea var. italica (Broccoli) (see paper)
25% identity, 22% coverage

SMU_952 homocysteine S-methyltransferase from Streptococcus mutans UA159
24% identity, 25% coverage

Rv2458 homocysteine methyltransferase from Mycobacterium tuberculosis H37Rv
27% identity, 26% coverage

ELI_2005 methyltetrahydrofolate cobalamin methyltransferase from Eubacterium callanderi
26% identity, 19% coverage

F7O84_RS08335 bifunctional homocysteine S-methyltransferase/methylenetetrahydrofolate reductase from Candidatus Galacturonibacter soehngenii
25% identity, 25% coverage

C0965_RS04785 homocysteine S-methyltransferase from Limosilactobacillus fermentum
25% identity, 25% coverage

CDR20291_0654 putative carbon monoxide dehydrogenase/acetyl-CoA synthase complex, methyltransferase subunit from Clostridium difficile R20291
CD0727 putative carbon monoxide dehydrogenase/acetyl-CoA synthase complex,methyltransferase subunit from Clostridium difficile 630
CDR20291_0654 carbon monoxide dehydrogenase/acetyl-CoA synthase methytransferase subunit from Clostridioides difficile R20291
28% identity, 21% coverage

XP_711874 S-adenosylmethionine-homocysteine S-methyltransferase from Candida albicans SC5314
22% identity, 26% coverage

BcerKBAB4_5466 homocysteine methyltransferase from Bacillus weihenstephanensis KBAB4
27% identity, 25% coverage

Tph_c15130 methyltetrahydrofolate cobalamin methyltransferase from Thermacetogenium phaeum DSM 12270
25% identity, 22% coverage

Ccar_18790 carbon monoxide dehydrogenase/acetyl-CoA synthase methytransferase subunit from Clostridium carboxidivorans P7
26% identity, 21% coverage

gbs1377 unknown from Streptococcus agalactiae NEM316
25% identity, 25% coverage

LOC105160993 homocysteine S-methyltransferase 1-like from Sesamum indicum
24% identity, 22% coverage

Q9FUM9 Homocysteine S-methyltransferase 2 from Zea mays
28% identity, 26% coverage

Q8DZ17 Homocysteine S-methyltransferase MmuM, putative from Streptococcus agalactiae serotype V (strain ATCC BAA-611 / 2603 V/R)
25% identity, 25% coverage

mtvA1 / Q2RLH0 [methyl-Co(III) methoxylated-aromatic-compound-specific corrinoid protein]--tetrahydrofolate methyltransferase monomer (EC 2.1.1.385) from Moorella thermoacetica (strain ATCC 39073 / JCM 9320) (see 2 papers)
26% identity, 19% coverage

SSU05_2024 homocysteine methyltransferase from Streptococcus suis 05ZYH33
SSUSC84_1835 homocysteine S-methyltransferase from Streptococcus suis SC84
28% identity, 25% coverage

acsE / Q46389 methyltetrahydrofolate:corrinoid/iron-sulfur protein methyltransferase subunit (EC 2.1.1.258) from Moorella thermoacetica (see 4 papers)
ACSE_MOOTH / Q46389 5-methyltetrahydrofolate:corrinoid/iron-sulfur protein co-methyltransferase; 5-methyltetrahydrofolate corrinoid/iron sulfur protein methyltransferase; MeTr; EC 2.1.1.258 from Moorella thermoacetica (Clostridium thermoaceticum) (see 3 papers)
Q46389 5-methyltetrahydrofolate:corrinoid/iron-sulfur protein Co-methyltransferase (EC 2.1.1.258) from Moorella thermoacetica (see 3 papers)
4djdA / Q46389 Crystal structure of folate-free corrinoid iron-sulfur protein (cfesp) in complex with its methyltransferase (metr) (see paper)
28% identity, 20% coverage

YagD / b0261 CP4-6 prophage; homocysteine S-methyltransferase (EC 2.1.1.10) from Escherichia coli K-12 substr. MG1655 (see 8 papers)
mmuM / Q47690 CP4-6 prophage; homocysteine S-methyltransferase (EC 2.1.1.10) from Escherichia coli (strain K12) (see 5 papers)
MMUM_ECOLI / Q47690 Homocysteine S-methyltransferase; S-methylmethionine:homocysteine methyltransferase; EC 2.1.1.10 from Escherichia coli (strain K12) (see 2 papers)
Q47690 homocysteine S-methyltransferase (EC 2.1.1.10); selenocysteine Se-methyltransferase (EC 2.1.1.280) from Escherichia coli (see 3 papers)
b0261 homocysteine methyltransferase from Escherichia coli str. K-12 substr. MG1655
NP_414795 homocysteine S-methyltransferase from Escherichia coli str. K-12 substr. MG1655
25% identity, 25% coverage

PPSC2_RS53470 homocysteine S-methyltransferase from Paenibacillus polymyxa SC2
25% identity, 25% coverage

YintA_01003465 COG2040: Homocysteine/selenocysteine methylase (S-methylmethionine-dependent) from Yersinia intermedia ATCC 29909
23% identity, 25% coverage

SSU1813 homocysteine S-methyltransferase from Streptococcus suis P1/7
28% identity, 25% coverage

New Search

For advice on how to use these tools together, see Interactive tools for functional annotation of bacterial genomes.

Statistics

The PaperBLAST database links 793,807 different protein sequences to 1,259,118 scientific articles. Searches against EuropePMC were last performed on March 13 2025.

How It Works

PaperBLAST builds a database of protein sequences that are linked to scientific articles. These links come from automated text searches against the articles in EuropePMC and from manually-curated information from GeneRIF, UniProtKB/Swiss-Prot, BRENDA, CAZy (as made available by dbCAN), BioLiP, CharProtDB, MetaCyc, EcoCyc, TCDB, REBASE, the Fitness Browser, and a subset of the European Nucleotide Archive with the /experiment tag. Given this database and a protein sequence query, PaperBLAST uses protein-protein BLAST to find similar sequences with E < 0.001.

To build the database, we query EuropePMC with locus tags, with RefSeq protein identifiers, and with UniProt accessions. We obtain the locus tags from RefSeq or from MicrobesOnline. We use queries of the form "locus_tag AND genus_name" to try to ensure that the paper is actually discussing that gene. Because EuropePMC indexes most recent biomedical papers, even if they are not open access, some of the links may be to papers that you cannot read or that our computers cannot read. We query each of these identifiers that appears in the open access part of EuropePMC, as well as every locus tag that appears in the 500 most-referenced genomes, so that a gene may appear in the PaperBLAST results even though none of the papers that mention it are open access. We also incorporate text-mined links from EuropePMC that link open access articles to UniProt or RefSeq identifiers. (This yields some additional links because EuropePMC uses different heuristics for their text mining than we do.)

For every article that mentions a locus tag, a RefSeq protein identifier, or a UniProt accession, we try to select one or two snippets of text that refer to the protein. If we cannot get access to the full text, we try to select a snippet from the abstract, but unfortunately, unique identifiers such as locus tags are rarely provided in abstracts.

PaperBLAST also incorporates manually-curated protein functions:

Except for GeneRIF and ENA, the curated entries include a short curated description of the protein's function. For entries from BioLiP, the protein's function may not be known beyond binding to the ligand. Many of these entries also link to articles in PubMed.

For more information see the PaperBLAST paper (mSystems 2017) or the code. You can download PaperBLAST's database here.

Changes to PaperBLAST since the paper was written:

Many of these changes are described in Interactive tools for functional annotation of bacterial genomes.

Secrets

PaperBLAST cannot provide snippets for many of the papers that are published in non-open-access journals. This limitation applies even if the paper is marked as "free" on the publisher's web site and is available in PubmedCentral or EuropePMC. If a journal that you publish in is marked as "secret," please consider publishing elsewhere.

Omissions from the PaperBLAST Database

Many important articles are missing from PaperBLAST, either because the article's full text is not in EuropePMC (as for many older articles), or because the paper does not mention a protein identifier such as a locus tag, or because of PaperBLAST's heuristics. If you notice an article that characterizes a protein's function but is missing from PaperBLAST, please notify the curators at UniProt or add an entry to GeneRIF. Entries in either of these databases will eventually be incorporated into PaperBLAST. Note that to add an entry to UniProt, you will need to find the UniProt identifier for the protein. If the protein is not already in UniProt, you can ask them to create an entry. To add an entry to GeneRIF, you will need an NCBI Gene identifier, but unfortunately many prokaryotic proteins in RefSeq do not have corresponding Gene identifers.

References

PaperBLAST: Text-mining papers for information about homologs.
M. N. Price and A. P. Arkin (2017). mSystems, 10.1128/mSystems.00039-17.

Europe PMC in 2017.
M. Levchenko et al (2017). Nucleic Acids Research, 10.1093/nar/gkx1005.

Gene indexing: characterization and analysis of NLM's GeneRIFs.
J. A. Mitchell et al (2003). AMIA Annu Symp Proc 2003:460-464.

UniProt: the universal protein knowledgebase.
The UniProt Consortium (2016). Nucleic Acids Research, 10.1093/nar/gkw1099.

BRENDA in 2017: new perspectives and new tools in BRENDA.
S. Placzek et al (2017). Nucleic Acids Research, 10.1093/nar/gkw952.

The EcoCyc database: reflecting new knowledge about Escherichia coli K-12.
I. M. Keeseler et al (2016). Nucleic Acids Research, 10.1093/nar/gkw1003.

The MetaCyc database of metabolic pathways and enzymes.
R. Caspi et al (2018). Nucleic Acids Research, 10.1093/nar/gkx935.

CharProtDB: a database of experimentally characterized protein annotations.
R. Madupu et al (2012). Nucleic Acids Research, 10.1093/nar/gkr1133.

The carbohydrate-active enzymes database (CAZy) in 2013.
V. Lombard et al (2014). Nucleic Acids Research, 10.1093/nar/gkt1178.

The Transporter Classification Database (TCDB): recent advances
M. H. Saier, Jr. et al (2016). Nucleic Acids Research, 10.1093/nar/gkv1103.

REBASE - a database for DNA restriction and modification: enzymes, genes and genomes.
R. J. Roberts et al (2015). Nucleic Acids Research, 10.1093/nar/gku1046.

Deep annotation of protein function across diverse bacteria from mutant phenotypes.
M. N. Price et al (2016). bioRxiv, 10.1101/072470.

by Morgan Price, Arkin group
Lawrence Berkeley National Laboratory