PaperBLAST – Find papers about a protein or its homologs

 

PaperBLAST

PaperBLAST Hits for tr|Q9HVX3|Q9HVX3_PSEAE Soluble and membrane-bound lytic transglycosylase OS=Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) OX=208964 GN=mltB1 PE=4 SV=1 (367 a.a., MRRTALALPL...)

Other sequence analysis tools:

Find functional residues: SitesBLAST

Search for conserved domains

Find the best match in UniProt

Compare to protein structures

Predict transmenbrane helices: Phobius

Predict protein localization: PSORTb

Find homologs in fast.genomics

Fitness BLAST: loading...

Found 85 similar proteins in the literature:

AAG07832.1 membrane-bound lytic transglycosylase B (MltB;Mltb1;PA4444;sMltB) (EC 4.2.2.n1) (see protein)
PA4444 membrane-bound lytic transglycosylase from Pseudomonas aeruginosa PAO1
NP_253134 murein hydrolase B from Pseudomonas aeruginosa PAO1
100% identity, 100% coverage

YPTB2681 putative membrane-bound lytic murein transglycosylase B from Yersinia pseudotuberculosis IP 32953
70% identity, 100% coverage

YPO2957 putative membrane-bound lytic murein transglycosylase B from Yersinia pestis CO92
69% identity, 99% coverage

AEX15_21995, SeKA_A2343 lytic murein transglycosylase B from Salmonella enterica subsp. enterica serovar Kentucky str. CVM29188
68% identity, 98% coverage

MltB / b2701 membrane-bound lytic murein transglycosylase B from Escherichia coli K-12 substr. MG1655 (see 30 papers)
mltB / P41052 membrane-bound lytic murein transglycosylase B from Escherichia coli (strain K12) (see 31 papers)
AAB60060.1 lytic murein transglycosylase B (MltB;b2701;Slt35) (EC 4.2.2.n1) (see protein)
mltB / AAB60060.1 membrane-bound lytic transglycosylase precursor from Escherichia coli (see 4 papers)
P41052 Membrane-bound lytic murein transglycosylase B from Escherichia coli (strain K12)
b2701 membrane-bound lytic murein transglycosylase B from Escherichia coli str. K-12 substr. MG1655
68% identity, 98% coverage

c3255 Membrane-bound lytic murein transglycosylase B precursor from Escherichia coli CFT073
68% identity, 90% coverage

1d0kA / P41052 The escherichia coli lytic transglycosylase slt35 in complex with two murodipeptides (glcnac-murnac-l-ala-d-glu) (see paper)
73% identity, 85% coverage

U876_15120 lytic murein transglycosylase B from Aeromonas hydrophila NJ-35
62% identity, 98% coverage

Q9HX24 Soluble lytic transglycosylase B from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
NP_252690 soluble lytic transglycosylase B from Pseudomonas aeruginosa PAO1
PA14_12080 soluble lytic transglycosylase B from Pseudomonas aeruginosa UCBPP-PA14
PA4001 soluble lytic transglycosylase B from Pseudomonas aeruginosa PAO1
48% identity, 83% coverage

5o8xA / Q9HX24 The x-ray structure of catenated lytic transglycosylase sltb1 from pseudomonas aeruginosa (see paper)
47% identity, 83% coverage

AUP74_01707 lytic murein transglycosylase B from Microbulbifer aggregans
41% identity, 97% coverage

BPSL2506 putative exported transglycosylase from Burkholderia pseudomallei K96243
43% identity, 69% coverage

ACIAD2264 membrane-bound lytic murein transglycosylase B from Acinetobacter sp. ADP1
40% identity, 82% coverage

XC_0706 membrane-bound lytic transglycosylase from Xanthomonas campestris pv. campestris str. 8004
38% identity, 78% coverage

NGO0626 putative murein hydrolase from Neisseria gonorrhoeae FA 1090
Q5F8Y3 Murein transglycosylase from Neisseria gonorrhoeae (strain ATCC 700825 / FA 1090)
NGO_0626 lytic murein transglycosylase B from Neisseria gonorrhoeae FA 1090
36% identity, 96% coverage

NMB1279 putative membrane-bound lytic murein transglycosylase B from Neisseria meningitidis MC58
35% identity, 96% coverage

SO1166 membrane-bound lytic transglycosylase, putative from Shewanella oneidensis MR-1
36% identity, 96% coverage

XAC_RS03435 lytic murein transglycosylase B from Xanthomonas citri pv. citri str. 306
38% identity, 78% coverage

SSKA14_RS05295 lytic murein transglycosylase B from Stenotrophomonas sp. SKA14
40% identity, 77% coverage

Smlt4052 putative murein hydrolase from Stenotrophomonas maltophilia K279a
40% identity, 77% coverage

NMA1488 murein hydrolase from Neisseria meningitidis Z2491
38% identity, 82% coverage

PD1235 membrane-bound lytic transglycosylase from Xylella fastidiosa Temecula1
35% identity, 93% coverage

D0CC83 Lytic murein transglycosylase B from Acinetobacter baumannii (strain ATCC 19606 / DSM 30007 / JCM 6841 / CCUG 19606 / CIP 70.34 / NBRC 109757 / NCIMB 12457 / NCTC 12156 / 81)
AB57_2749 lytic murein transglycosylase B from Acinetobacter baumannii AB0057
ABUW_1243 lytic murein transglycosylase B from Acinetobacter baumannii
39% identity, 82% coverage

XF2184 membrane-bound lytic transglycosylase from Xylella fastidiosa 9a5c
37% identity, 79% coverage

SO1994, SO_1994 membrane-bound lytic transglycolase-related protein from Shewanella oneidensis MR-1
32% identity, 74% coverage

PP4798 membrane-bound lytic murein transglycosylase, putative from Pseudomonas putida KT2440
30% identity, 80% coverage

PsyrB_22625 lytic murein transglycosylase from Pseudomonas syringae pv. syringae B301D
32% identity, 78% coverage

Psyr_4357 transglycosylase, putative from Pseudomonas syringae pv. syringae B728a
32% identity, 78% coverage

PsyrH_04450 lytic murein transglycosylase from Pseudomonas syringae pv. syringae HS191
32% identity, 78% coverage

PSPPH_4398 type III effector HopAJ2 from Pseudomonas syringae pv. phaseolicola 1448A
32% identity, 78% coverage

VC1956 lytic murein transglycosylase, putative from Vibrio cholerae O1 biovar eltor str. N16961
36% identity, 63% coverage

Atu0092 lytic murein transglycosylase from Agrobacterium tumefaciens str. C58 (Cereon)
36% identity, 53% coverage

PSPTO_4817 transglycosylase, putative from Pseudomonas syringae pv. tomato str. DC3000
31% identity, 78% coverage

SMc02909 PUTATIVE TRANSGLYCOSYLASE TRANSMEMBRANE PROTEIN from Sinorhizobium meliloti 1021
33% identity, 66% coverage

PA1171 probable transglycolase from Pseudomonas aeruginosa PAO1
Q9I4G6 Probable transglycolase from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
32% identity, 77% coverage

PA14_49280 probable transglycolase from Pseudomonas aeruginosa UCBPP-PA14
32% identity, 77% coverage

7qvdAAA 7qvdAAA
32% identity, 81% coverage

PA14_12160 putative murein transglycosylase from Pseudomonas aeruginosa UCBPP-PA14
35% identity, 61% coverage

CBU_0925 lytic murein transglycosylase, putative from Coxiella burnetii RSA 493
35% identity, 66% coverage

PA3992 hypothetical protein from Pseudomonas aeruginosa PAO1
35% identity, 61% coverage

Aave_3237 lytic murein transglycosylase from Acidovorax avenae subsp. citrulli AAC00-1
34% identity, 60% coverage

MCR_0196 lytic murein transglycosylase from Moraxella catarrhalis BBH18
33% identity, 51% coverage

XAUB_14690 lytic murein transglycosylase from Xanthomonas citri pv. aurantifolii str. ICPB 11122
36% identity, 60% coverage

5anzA / Q9HX28 Crystal structure of sltb3 from pseudomonas aeruginosa. (see paper)
35% identity, 73% coverage

hpaJ / AAR23828.1 putative murein transglycosylase precursor from Xanthomonas euvesicatoria (see paper)
XCV2440 Lytic murein transglycosylase precursor from Xanthomonas campestris pv. vesicatoria str. 85-10
36% identity, 59% coverage

XACb0007 lytic murein transglycosylase from Xanthomonas axonopodis pv. citri str. 306
XAC_RS22275 lytic murein transglycosylase from Xanthomonas citri pv. citri str. 306
36% identity, 59% coverage

XAC_RS16355 lytic murein transglycosylase from Xanthomonas citri pv. citri str. 306
XAC3225 transglycosylase from Xanthomonas axonopodis pv. citri str. 306
36% identity, 59% coverage

Smlt4650 putative transglycosylase protein from Stenotrophomonas maltophilia K279a
37% identity, 62% coverage

ABZJ_00028 lytic murein transglycosylase from Acinetobacter baumannii MDR-ZJ06
36% identity, 52% coverage

ABAYE3869 putative membrane-bound lytic murein transglycosylase from Acinetobacter baumannii AYE
AB57_0044 transglycolase from Acinetobacter baumannii AB0057
36% identity, 52% coverage

AUP74_01186 lytic murein transglycosylase from Microbulbifer aggregans
32% identity, 54% coverage

Dd586_1899 lytic murein transglycosylase from Dickeya dadantii Ech586
32% identity, 56% coverage

Dd1591_1902 lytic murein transglycosylase from Dickeya zeae Ech1591
31% identity, 60% coverage

M892_06105 lytic transglycosylase domain-containing protein from Vibrio campbellii ATCC BAA-1116
35% identity, 62% coverage

SPO3617 lytic murein transglycosylase from Ruegeria pomeroyi DSS-3
37% identity, 58% coverage

Dshi_1864 lytic murein transglycosylase from Dinoroseobacter shibae DFL 12
36% identity, 59% coverage

B1917_RS10525 lytic murein transglycosylase from Bordetella pertussis B1917
32% identity, 59% coverage

SMc04024 PUTATIVE MEMBRANE-BOUND LYTIC MUREIN TRANSGLYCOSYLASE PROTEIN from Sinorhizobium meliloti 1021
Q92M47 Membrane-bound lytic murein transglycosylase from Rhizobium meliloti (strain 1021)
35% identity, 53% coverage

Q889A9 Type III helper protein HopAJ1 from Pseudomonas syringae pv. tomato (strain ATCC BAA-871 / DC3000)
PSPTO_0852 type III helper protein HopPmaG(Pto) from Pseudomonas syringae pv. tomato str. DC3000
33% identity, 65% coverage

WN72_26565 lytic murein transglycosylase from Bradyrhizobium arachidis
41% identity, 40% coverage

BAW_20069 lytic murein transglycosylase from Brucella abortus
Q2YIT4 Putative peptidoglycan binding domain 1 from Brucella abortus (strain 2308)
BAB2_0069 Putative peptidoglycan binding domain 1 from Brucella melitensis biovar Abortus 2308
31% identity, 58% coverage

XAC_RS21660 lytic murein transglycosylase from Xanthomonas citri pv. citri str. 306
XAC4296 epimerase from Xanthomonas axonopodis pv. citri str. 306
35% identity, 37% coverage

APL_0642 membrane-bound lytic murein transglycosylase B from Actinobacillus pleuropneumoniae L20
31% identity, 61% coverage

BM28_RS10610 lytic murein transglycosylase from Brucella melitensis M28
31% identity, 58% coverage

E2P69_RS14605 lytic murein transglycosylase from Xanthomonas perforans
34% identity, 37% coverage

WN72_12370 lytic murein transglycosylase from Bradyrhizobium arachidis
31% identity, 55% coverage

Atu3779 lytic murein transglycosylase from Agrobacterium tumefaciens str. C58 (Cereon)
34% identity, 58% coverage

CLIBASIA_00965 lytic murein transglycosylase from Candidatus Liberibacter asiaticus str. psy62
33% identity, 53% coverage

G293_01215 lytic transglycosylase domain-containing protein from Candidatus Liberibacter africanus PTSAPSY
31% identity, 53% coverage

RSP_2163 lytic murein transglycosylase, putative from Rhodobacter sphaeroides 2.4.1
38% identity, 34% coverage

SMc04411 PUTATIVE MEMBRANE-BOUND LYTIC MUREIN TRANSGLYCOSYLASE SIGNAL PEPTIDE PROTEIN from Sinorhizobium meliloti 1021
37% identity, 34% coverage

B488_10490 lytic transglycosylase domain-containing protein from Liberibacter crescens BT-1
37% identity, 39% coverage

SPO2296 lytic transglycosylase domain-containing protein from Ruegeria pomeroyi DSS-3
36% identity, 34% coverage

Atu2489 hypothetical protein from Agrobacterium tumefaciens str. C58 (Cereon)
40% identity, 34% coverage

BMEI0223 MEMBRANE-BOUND LYTIC MUREIN TRANSGLYCOSYLASE B from Brucella melitensis 16M
36% identity, 38% coverage

RL4716 hypothetical protein from Rhizobium leguminosarum bv. viciae 3841
38% identity, 34% coverage

RHE_CH04101 putative membrane-bound lytic murein transglycosylase protein from Rhizobium etli CFN 42
37% identity, 34% coverage

SMc01845 PUTATIVE TRANSGLYCOSYLASE TRANSMEMBRANE PROTEIN from Sinorhizobium meliloti 1021
Q92NK3 Membrane-bound lytic murein transglycosylase B from Rhizobium meliloti (strain 1021)
29% identity, 57% coverage

RL3329 putative lytic transglycosylase from Rhizobium leguminosarum bv. viciae 3841
28% identity, 59% coverage

RHE_CH02869 probable membrane-bound lytic murein transglycosylase protein from Rhizobium etli CFN 42
28% identity, 58% coverage

BAB_RS22915 lytic murein transglycosylase from Brucella abortus 2308
27% identity, 57% coverage

Atu2122 lytic murein transglycosylase from Agrobacterium tumefaciens str. C58 (Cereon)
27% identity, 57% coverage

BJ6T_59850 lytic transglycosylase domain-containing protein from Bradyrhizobium japonicum USDA 6
36% identity, 33% coverage

MMSR116_RS14565 lytic transglycosylase domain-containing protein from Methylobacterium mesophilicum SR1.6/6
36% identity, 38% coverage

WP_176453824 NlpC/P60 family protein from Cutibacterium acnes
51% identity, 8% 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