Clusters of Characterized Proteins

GapMind for Amino acid biosynthesis

Clusters of Characterized Proteins

Clustering the characterized proteins for cysK (O-acetylserine or O-succinylserine sulfhydrylase) in L-cysteine biosynthesis

Or see other characterized proteins similar to cysK

Or see all steps for L-cysteine biosynthesis

Or cluster curated proteins matching a keyword

Definition of cysK

Curated proteins or TIGRFams with EC 2.5.1.47
Ignore hits to O22682 when looking for 'other' hits (cysteine synthase (EC 2.5.1.47). S-sulfo-L-cysteine synthase (O-acetyl-L-serine-dependent), chloroplastic; AtCS26; Beta-substituted Ala synthase 5;1; ARAth-Bsas5;1; O-acetylserine sulfhydrylase; EC 2.5.1.144. S-sulfocysteine synthase (EC 2.5.1.144))
Ignore hits to Q9YBL2 when looking for 'other' hits (cysteine synthase (EC 2.5.1.47); O-phosphoserine sulfhydrylase (EC 2.5.1.65). Protein CysO; Cystathionine beta-synthase; Cysteine synthase; O-acetylserine sulfhydrylase; O-phosphoserine sulfhydrylase; Serine sulfhydrase; EC 4.2.1.22; EC 2.5.1.47; EC 2.5.1.65. O-phosphoserine sulfhydrylase monomer (EC 2.5.1.65))
Ignore hits to CH_123612 when looking for 'other' hits (O-acetylhomoserine O-acetylserine sulphydrylase)
Comment: E. coli also has cysM (same EC number). BRENDA misannotates O22682 and Q9YBL2 with this activity. CH_123612 maybe have this activity but is annotated more vaguely.

Fetched 63 sequences

Running BLASTp

Found similarities, at above 30% identity and 75% coverage, for 61 of these sequences

Found 1 clusters of similar sequences. Another 3 sequences are not clustered. Download as table or as draft rules or view by organism

Cluster 1 299-430 amino acids (not heteromeric)

The first sequence in each cluster is the seed.

P47999 O-acetylserine (thiol) lyase (EC 2.5.1.47) from Arabidopsis thaliana
CYSKP_ARATH / P47999 Cysteine synthase, chloroplastic/chromoplastic; At.OAS.7-4; Beta-substituted Ala synthase 2;1; ARAth-Bsas2;1; CSase B; AtCS-B; CS-B; O-acetylserine (thiol)-lyase; O-acetylserine sulfhydrylase; OAS-TL B; cpACS1; EC 2.5.1.47 from Arabidopsis thaliana (Mouse-ear cress)
P47999 cysteine synthase (EC 2.5.1.47) from Arabidopsis thaliana
PFams: PALP
392 amino acids: PaperBLAST, CDD, Compare to cluster

A0A0F6AQU1 cysteine synthase (EC 2.5.1.47) from Brucella abortus
PFams: PALP
342 amino acids: PaperBLAST, CDD, Compare to cluster

A0A2H5HU77 cysteine synthase (EC 2.5.1.47) from Lathyrus sativus
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

A2GMG5 cysteine synthase (EC 2.5.1.47) from Trichomonas vaginalis
PFams: PALP
299 amino acids: PaperBLAST, CDD, Compare to cluster

A3RM03 cysteine synthase (EC 2.5.1.47) from Glycine max
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

A3RM06 cysteine synthase (EC 2.5.1.47) from Glycine max
PFams: PALP
324 amino acids: PaperBLAST, CDD, Compare to cluster

A4HPM6 cysteine synthase (EC 2.5.1.47) from Leishmania braziliensis
PFams: PALP
333 amino acids: PaperBLAST, CDD, Compare to cluster

A8YBP8 cysteine synthase (EC 2.5.1.47) from Microcystis aeruginosa
PFams: PALP
315 amino acids: PaperBLAST, CDD, Compare to cluster

A8YBS4 cysteine synthase (EC 2.5.1.47) from Microcystis aeruginosa
PFams: PALP
319 amino acids: PaperBLAST, CDD, Compare to cluster

C4ITG6 cysteine synthase (EC 2.5.1.47) from Brucella abortus
PFams: PALP
334 amino acids: PaperBLAST, CDD, Compare to cluster

E5LPF4 cysteine synthase (EC 2.5.1.47) from Lacticaseibacillus casei
PFams: PALP
309 amino acids: PaperBLAST, CDD, Compare to cluster

CGL_ARATH / F4K5T2 Bifunctional cystathionine gamma-lyase/cysteine synthase; Beta-substituted Ala synthase 4;3; ARAth-Bsas4;3; L-cysteine desulfhydrase 1; DES1; O-acetylserine (thiol)-lyase; OASTL; Protein CS-LIKE; EC 2.5.1.47; EC 4.4.1.1 from Arabidopsis thaliana (Mouse-ear cress)
F4K5T2 L-cysteine desulfidase (EC 4.4.1.28) from Arabidopsis thaliana
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

F5HTD7 cysteine synthase (EC 2.5.1.47) from Mimosa pudica
PFams: PALP
329 amino acids: PaperBLAST, CDD, Compare to cluster

F9UT54 cysteine synthase (EC 2.5.1.47); cystathionine beta-synthase (EC 4.2.1.22) from Lactiplantibacillus plantarum
PFams: PALP
303 amino acids: PaperBLAST, CDD, Compare to cluster

I1L6I6 L-3-cyanoalanine synthase (EC 4.4.1.9) (from HMM only) from Glycine max
PFams: PALP
373 amino acids: PaperBLAST, CDD, Compare to cluster

J9WJN8 L-cysteine desulfidase (EC 4.4.1.28) (from HMM only) from Brassica napus
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

O15570 cysteine synthase (EC 2.5.1.47) from Entamoeba histolytica
PFams: PALP
337 amino acids: PaperBLAST, CDD, Compare to cluster

O15635 cysteine synthase (EC 2.5.1.47) from Entamoeba histolytica
PFams: PALP
337 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK2_CAEEL / O45679 Bifunctional L-3-cyanoalanine synthase/cysteine synthase; CAS; O-acetylserine (thiol)-lyase 2; OAS-TL; EC 2.5.1.47; EC 4.4.1.9 from Caenorhabditis elegans
O45679 cysteine synthase (EC 2.5.1.47) from Caenorhabditis elegans
PFams: PALP
337 amino acids: PaperBLAST, CDD, Compare to cluster

O81154 cysteine synthase (EC 2.5.1.47) from Solanum tuberosum
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

O81155 cysteine synthase (EC 2.5.1.47) from Solanum tuberosum
PFams: PALP
386 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_SALTY / P0A1E3 Cysteine synthase A; CSase A; O-acetylserine (thiol)-lyase A; OAS-TL A; O-acetylserine sulfhydrylase A; EC 2.5.1.47 from Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
P0A1E3 cysteine synthase (EC 2.5.1.47) from Salmonella enterica subsp. enterica serovar Typhimurium
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

b2414 cysteine synthase A (EC 2.5.1.47; EC 4.4.1.1; EC 4.4.1.28) from Escherichia coli K-12 substr. MG1655
P0ABK5 cysteine synthase A (EC 2.5.1.47; EC 4.4.1.1) from Escherichia coli (strain K12)
CYSK_ECOLI / P0ABK5 Cysteine synthase A; CSase A; O-acetylserine (thiol)-lyase A; OAS-TL A; O-acetylserine sulfhydrylase A; S-carboxymethylcysteine synthase; Sulfate starvation-induced protein 5; SSI5; EC 2.5.1.47; EC 4.5.1.5 from Escherichia coli (strain K12)
P0ABK5 cysteine synthase (EC 2.5.1.47) from Escherichia coli
GB|AAC75467.1 cysteine synthase A from Escherichia coli K12
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

P29848 S-sulfo-L-cysteine synthase (O-acetyl-L-serine-dependent) (EC 2.5.1.144); cysteine synthase (EC 2.5.1.47) from Salmonella enterica subsp. enterica serovar Typhimurium
PFams: PALP
303 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_BACSU / P37887 Cysteine synthase; CSase; O-acetylserine (thiol)-lyase; OAS-TL; Superoxide-inducible protein 11; SOI11; EC 2.5.1.47 from Bacillus subtilis (strain 168)
P37887 cysteine synthase (EC 2.5.1.47) from Bacillus subtilis
PFams: PALP
308 amino acids: PaperBLAST, CDD, Compare to cluster

P45040 cysteine synthase (EC 2.5.1.47) from Haemophilus influenzae
PFams: PALP
316 amino acids: PaperBLAST, CDD, Compare to cluster

P9WP53 CysO-thiocarboxylate-dependent cysteine synthase monomer (EC 2.5.1.113) (from HMM only) from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
CYSM_MYCTU / P9WP53 O-phosphoserine sulfhydrylase; OPS sulfhydrylase; CysO-thiocarboxylate-dependent cysteine synthase; Cysteine synthase B; CSase B; O-phosphoserine-specific cysteine synthase; [CysO sulfur-carrier protein]-thiocarboxylate-dependent cysteine synthase; EC 2.5.1.113 from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
P9WP53 [CysO sulfur-carrier protein]-thiocarboxylate-dependent cysteine synthase (EC 2.5.1.113); O-phosphoserine sulfhydrylase (EC 2.5.1.65) from Mycobacterium tuberculosis
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_MYCTU / P9WP55 O-acetylserine sulfhydrylase; OAS sulfhydrylase; OASS; Cysteine synthase A; CSase A; O-acetylserine (thiol)-lyase A; OAS-TL A; O-acetylserine-specific cysteine synthase; Sulfide-dependent cysteine synthase; EC 2.5.1.47 from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
P9WP55 cysteine synthase (EC 2.5.1.47) from Mycobacterium tuberculosis
PFams: PALP
310 amino acids: PaperBLAST, CDD, Compare to cluster

Q2PZM5 cysteine synthase (EC 2.5.1.47) from Azospirillum brasilense
PFams: PALP
319 amino acids: PaperBLAST, CDD, Compare to cluster

Q401L7 cysteine synthase (EC 2.5.1.47) from Entamoeba histolytica
PFams: PALP
336 amino acids: PaperBLAST, CDD, Compare to cluster

Q43725 O-acetylserine (thiol) lyase (EC 2.5.1.47) from Arabidopsis thaliana
CYSKM_ARATH / Q43725 Cysteine synthase, mitochondrial; Beta-substituted Ala synthase 2;2; ARAth-Bsas2;2; CSase C; AtCS-C; CS-C; O-acetylserine (thiol)-lyase; O-acetylserine sulfhydrylase; OAS-TL C; EC 2.5.1.47 from Arabidopsis thaliana (Mouse-ear cress)
Q43725 cysteine synthase (EC 2.5.1.47) from Arabidopsis thaliana
PFams: PALP
430 amino acids: PaperBLAST, CDD, Compare to cluster

Q767A2 cysteine synthase (EC 2.5.1.47) from Spinacia oleracea
PFams: PALP
332 amino acids: PaperBLAST, CDD, Compare to cluster

CAS1_SOLTU / Q76MX2 Bifunctional L-3-cyanoalanine synthase/cysteine synthase 1, mitochondrial; EC 2.5.1.47; EC 4.4.1.9 from Solanum tuberosum (Potato)
Q76MX2 L-3-cyanoalanine synthase (EC 4.4.1.9) from Solanum tuberosum
PFams: PALP
351 amino acids: PaperBLAST, CDD, Compare to cluster

Q79FV4 3-phospho-L-serine-dependent S-sulfo-L-cysteine synthase (EC 2.8.5.1) from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
CYSK2_MYCTU / Q79FV4 S-sulfocysteine synthase; O-phospho-L-serine-dependent S-sulfocysteine synthase; OPS-dependent S-sulfocysteine synthase; O-phosphoserine sulfhydrylase; EC 2.8.5.1; EC 2.5.1.65 from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Q79FV4 cysteine synthase (EC 2.5.1.47); O-phosphoserine sulfhydrylase (EC 2.5.1.65) from Mycobacterium tuberculosis
PFams: PALP
372 amino acids: PaperBLAST, CDD, Compare to cluster

Q84IF9 cysteine synthase (EC 2.5.1.47); L-3-cyanoalanine synthase (EC 4.4.1.9) from Geobacillus stearothermophilus
PFams: PALP
308 amino acids: PaperBLAST, CDD, Compare to cluster

CYSC1_ARATH / Q9S757 Bifunctional L-3-cyanoalanine synthase/cysteine synthase C1, mitochondrial; Beta-substituted Ala synthase 3;1; ARAth-Bsas3;1; Cysteine synthase C1; AtCYSC1; O-acetylserine (thiol)-lyase 5; EC 2.5.1.47; EC 4.4.1.9 from Arabidopsis thaliana (Mouse-ear cress)
Q9S757 L-3-cyanoalanine synthase (EC 4.4.1.9) from Arabidopsis thaliana
PFams: PALP
368 amino acids: PaperBLAST, CDD, Compare to cluster

Q9XEA8 cysteine synthase (EC 2.5.1.47) from Oryza sativa Japonica Group
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

W5S3I4 cysteine synthase (EC 2.5.1.47) from Leucaena leucocephala
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_EMENI / P50867 Cysteine synthase 1; CS 1; O-acetylserine (thiol)-lyase 1; OAS-TL 1; O-acetylserine sulfhydrylase 1; O-succinylserine sulfhydrylase; EC 2.5.1.-; EC 2.5.1.47 from Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) (Aspergillus nidulans)
GB|AAC06128.1 cysteine synthase; EC 2.5.1.47 from Emericella nidulans
PFams: PALP
370 amino acids: PaperBLAST, CDD, Compare to cluster

CYSKL_SCHPO / P87131 Cysteine synthase 2; CS 2; Cysteine synthase-like protein; CSl; O-acetylserine (thiol)-lyase 2; OAS-TL 2; O-acetylserine sulfhydrylase 2; EC 2.5.1.47 from Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
RF|NP_593343.1 cysteine synthase Cys12; EC 2.5.1.47 from Schizosaccharomyces pombe
PFams: PALP
395 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_SCHPO / O59701 Cysteine synthase 1; CS 1; O-acetylserine (thiol)-lyase 1; OAS-TL 1; O-acetylserine sulfhydrylase 1; O-succinylserine sulfhydrylase; EC 2.5.1.-; EC 2.5.1.47 from Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast)
RF|NP_595332.1 cysteine synthase from Schizosaccharomyces pombe
PFams: PALP
351 amino acids: PaperBLAST, CDD, Compare to cluster

D2Z027 O-ureido-L-serine synthase (EC 2.5.1.47; EC 2.6.99.3) from Streptomyces lavendulae
DCSD_STRLA / D2Z027 O-ureido-L-serine synthase; Cysteine synthase homolog DscD; O-acetylserine sulfhydrylase; EC 2.6.99.3; EC 2.5.1.47 from Streptomyces lavendulae
D2Z027 cysteine synthase (EC 2.5.1.47); O-ureido-L-serine synthase (EC 2.6.99.3) from Streptomyces lavendulae
PFams: PALP
324 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK3_CAEEL / O01592 Cysteine synthase 3; O-acetylserine (thiol)-lyase 3; OAS-TL; EC 2.5.1.47 from Caenorhabditis elegans
PFams: PALP
337 amino acids: PaperBLAST, CDD, Compare to cluster

b2421 cysteine synthase B (EC 2.5.1.47; EC 2.5.1.144; EC 4.4.1.1; EC 4.4.1.28) from Escherichia coli K-12 substr. MG1655
P16703 cysteine synthase B (EC 2.5.1.47; EC 2.5.1.144; EC 4.4.1.1) from Escherichia coli (strain K12)
CYSM_ECOLI / P16703 Cysteine synthase B; CSase B; O-acetylserine (thiol)-lyase B; OAS-TL B; O-acetylserine sulfhydrylase B; EC 2.5.1.47 from Escherichia coli (strain K12)
PFams: PALP
303 amino acids: PaperBLAST, CDD, Compare to cluster

P47998 O-acetylserine (thiol) lyase (EC 2.5.1.47) from Arabidopsis thaliana
CYSK1_ARATH / P47998 Cysteine synthase 1; At.OAS.5-8; Beta-substituted Ala synthase 1;1; ARAth-Bsas1;1; CSase A; AtCS-A; Cys-3A; O-acetylserine (thiol)-lyase 1; OAS-TL A; O-acetylserine sulfhydrylase; Protein ONSET OF LEAF DEATH 3; EC 2.5.1.47 from Arabidopsis thaliana (Mouse-ear cress)
PFams: PALP
322 amino acids: PaperBLAST, CDD, Compare to cluster

MCY1_YEAST / P53206 Putative mitochondrial cysteine synthase; CS; Cysteine synthase-like protein; CSl; O-acetylserine (thiol)-lyase; OAS-TL; O-acetylserine sulfhydrylase; EC 2.5.1.47 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
PFams: PALP
393 amino acids: PaperBLAST, CDD, Compare to cluster

Q1KLZ1 β-cyanoalanine synthase (EC 4.4.1.9) (from HMM only) from Malus domestica
CAS2_MALDO / Q1KLZ1 L-3-cyanoalanine synthase 2, mitochondrial; MdCAS2; EC 4.4.1.9 from Malus domestica (Apple) (Pyrus malus)
Q1KLZ1 L-3-cyanoalanine synthase (EC 4.4.1.9) from Malus domestica
PFams: PALP
375 amino acids: PaperBLAST, CDD, Compare to cluster

Q1KLZ2 β-cyanoalanine synthase (EC 4.4.1.9) (from HMM only) from Malus domestica
CAS1_MALDO / Q1KLZ2 L-3-cyanoalanine synthase 1, mitochondrial; MdCAS1; EC 4.4.1.9 from Malus domestica (Apple) (Pyrus malus)
Q1KLZ2 L-3-cyanoalanine synthase (EC 4.4.1.9) from Malus domestica
PFams: PALP
376 amino acids: PaperBLAST, CDD, Compare to cluster

CYSC_SPIOL / Q43153 Bifunctional L-3-cyanoalanine synthase/cysteine synthase, mitochondrial; Beta-cyanoalanine synthase; SoCAS; Beta-substituted Ala synthase 3-1; SPIol-Bsas3-1; Cysteine synthase C; EC 2.5.1.47; EC 4.4.1.9 from Spinacia oleracea (Spinach)
Q43153 L-3-cyanoalanine synthase (EC 4.4.1.9) from Spinacia oleracea
PFams: PALP
368 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_CITLA / Q43317 Cysteine synthase; CSase; Beta-PA/CSase; Beta-pyrazolylalanine synthase; L-mimosine synthase; O-acetylserine (thiol)-lyase; OAS-TL; O-acetylserine sulfhydrylase; EC 2.5.1.47; EC 2.5.1.51; EC 4.2.1.50; EC 2.5.1.52 from Citrullus lanatus (Watermelon) (Citrullus vulgaris)
PFams: PALP
325 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_SYNE7 / Q59966 Cysteine synthase; CSase; O-acetylserine (thiol)-lyase; OAS-TL; O-acetylserine sulfhydrylase; EC 2.5.1.47 from Synechococcus elongatus (strain ATCC 33912 / PCC 7942 / FACHB-805) (Anacystis nidulans R2)
PFams: PALP
329 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK_NEUCR / Q7RYW6 Cysteine synthase 1; CS 1; O-acetylserine (thiol)-lyase 1; OAS-TL 1; O-acetylserine sulfhydrylase 1; O-succinylserine sulfhydrylase; EC 2.5.1.-; EC 2.5.1.47 from Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987)
PFams: PALP
376 amino acids: PaperBLAST, CDD, Compare to cluster

CYSK1_CAEEL / Q93244 Cysteine synthase 1; O-acetylserine (thiol)-lyase 1; OAS-TL; EC 2.5.1.47 from Caenorhabditis elegans
Q93244 cysteine synthase (EC 2.5.1.47) from Caenorhabditis elegans
PFams: PALP
341 amino acids: PaperBLAST, CDD, Compare to cluster

CAS2_SOLTU / Q9FS29 Bifunctional L-3-cyanoalanine synthase/cysteine synthase 2, mitochondrial; EC 2.5.1.47; EC 4.4.1.9 from Solanum tuberosum (Potato)
Q9FS29 L-3-cyanoalanine synthase (EC 4.4.1.9) from Solanum tuberosum
PFams: PALP
347 amino acids: PaperBLAST, CDD, Compare to cluster

CYSD1_ARATH / Q9S6Z7 Bifunctional L-3-cyanoalanine synthase/cysteine synthase D1; Beta-substituted Ala synthase 4;1; ARAth-Bsas4;1; Cysteine synthase D1; AtcysD1; O-acetylserine (thiol)-lyase 3; EC 2.5.1.47; EC 4.4.1.9 from Arabidopsis thaliana (Mouse-ear cress)
PFams: PALP
324 amino acids: PaperBLAST, CDD, Compare to cluster

CYSD2_ARATH / Q9SXS7 Bifunctional L-3-cyanoalanine synthase/cysteine synthase D2; Beta-substituted Ala synthase 4;2; ARAth-Bsas4;2; Cysteine synthase D2; AtcysD2; O-acetylserine (thiol)-lyase 6; EC 2.5.1.47; EC 4.4.1.9 from Arabidopsis thaliana (Mouse-ear cress)
PFams: PALP
323 amino acids: PaperBLAST, CDD, Compare to cluster

P56067 cystathionine β-synthase (O-acetyl-L-serine) monomer (EC 4.2.1.22; EC 2.5.1.134; EC 2.5.1.47) from Helicobacter pylori (strain ATCC 700392 / 26695)
PFams: PALP
306 amino acids: PaperBLAST, CDD, Compare to cluster

Q8L0X3 L-cysteine desulfhydrase (EC 4.4.1.1) from Fusobacterium nucleatum
Q8L0X3 L-cysteine desulfidase (EC 4.4.1.28) (from HMM only) from Fusobacterium nucleatum
PFams: PALP
306 amino acids: PaperBLAST, CDD, Compare to cluster

A0A2Z6G0Q7 mimosine synthase monomer (EC 2.5.1.47; EC 2.5.1.52) from Leucaena leucocephala
A0A2Z6G0Q7 cysteine synthase (EC 2.5.1.47) from Leucaena leucocephala
PFams: PALP
324 amino acids: PaperBLAST, CDD, Compare to cluster

A2EI82 O-phosphoserine sulfhydrylase monomer (EC 2.5.1.47; EC 2.5.1.65) from Trichomonas vaginalis (strain ATCC PRA-98 / G3)
PFams: PALP
299 amino acids: PaperBLAST, CDD, Compare to cluster

Singletons (0/3 heteromeric)

P06106 Met17 (EC 2.5.1.49) from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
CYSD_YEAST / P06106 Homocysteine/cysteine synthase; O-acetylserine/O-acetylhomoserine sulfhydrylase; OAS-OAH SHLase; OAS-OAH sulfhydrylase; EC 2.5.1.47; EC 2.5.1.49 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
PFams: Cys_Met_Meta_PP, Aminotran_1_2, Beta_elim_lyase, DegT_DnrJ_EryC1, Aminotran_5
444 amino acids: PaperBLAST, CDD

METW_YEAST / Q12198 Homocysteine/cysteine synthase; Hydrogen sulfide utilizing 1; O-acetylserine/O-acetylhomoserine sulfhydrylase; OAS-OAH SHLase; OAS-OAH sulfhydrylase; EC 2.5.1.47; EC 2.5.1.49 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
PFams: Cys_Met_Meta_PP
575 amino acids: PaperBLAST, CDD

CYSKL_NEUCR / Q7SHQ1 Cysteine synthase 2; CS 2; Cysteine synthase-like protein; CSl; O-acetylserine (thiol)-lyase 2; OAS-TL 2; O-acetylserine sulfhydrylase 2; EC 2.5.1.47 from Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987)
PFams: PALP
456 amino acids: PaperBLAST, CDD
(similar to BRENDA::A4HPM6 from Cluster 1, but similarity to seed sequence is below thresholds)