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X - Possible homology level

H - Homology level

T - Topology level

F - Family level

* - Provisional representative


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Evolutionary classification of protein domain structures

alpha arraysalpha-helix arrays with mainly perpendicular helices

alpha bundlesalpha-helix bundles with mainly parallel helices

alpha superhelicesrepeating alpha-helix hairpins form a superhelix

alpha duplicates or obligate multimersalpha duplicates or monomers associate together to form a compact domain

alpha complex topologyalpha domain with complex and unique topology that cannot be described as array or bundle or superhelix

beta barrelssingle beta-sheet folded upon itself to form a barrel

beta meanderssingle beta-sheet with mainly meander topology

beta sandwichestwo beta-sheets stacked together to form a sandwich

beta duplicates or obligate multimersbeta duplicates or monomers associate together to form a compact domain

beta complex topologybeta domains with complex and unique topology that cannot be described as barrel or sandwich or meander

a+b two layersone alpha-helix layer and one beta-sheet layer

a+b three layersone mainly antiparallel beta-sheet layer sandwiched between two alpha-helix layers

a+b four layerstwo beta-sheet layers sandwiched between two alpha-helix layers

a+b complex topologyalpha and beta domain with complex and unique topology that cannot be described in layers

a+b duplicates or obligate multimersalpha and beta duplicates or monomers associated together to form a compact domain

a/b barrelsrepeating beta-alpha units form a barrel

a/b three-layered sandwichesrepeating beta-alpha units form a sandwich with a mainly parallel beta-sheet layer stacked between two alpha-helix layers

X: Rossmann-like
H: Tryptophan synthase beta subunit-like PLP-dependent enzymes
T: Tryptophan synthase beta subunit-like PLP-dependent enzymes
F: PALP

PF00291 CL0063

Representatives:

e1qopB1[B:2-200] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRYPTOPHAN SYNTHASE BETA CHAIN ; ligands: PLP ; X-RAY DIFFRACTION 1.400Å

e1qopB2[B:201-391] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

TRYPTOPHAN SYNTHASE BETA CHAIN ; ligands: NA,PLP ; X-RAY DIFFRACTION 1.400Å

e1ve1A1[A:1-147] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE SULFHYDRYLASE ; ligands: PLP ; X-RAY DIFFRACTION 1.45Å

e4aecA1[A:101-261] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE, MITOCHONDRIAL ; ligands: ACT,GOL,PLP ; X-RAY DIFFRACTION 2.40Å

e4aecB1[B:110-261] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE, MITOCHONDRIAL ; ligands: GOL,PLP ; X-RAY DIFFRACTION 2.40Å

e4airA2[A:3-158] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: FGA ; X-RAY DIFFRACTION 1.80Å

e4airB2[B:4-158] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: FGA ; X-RAY DIFFRACTION 1.80Å

e2bhsA2[A:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.67Å

e2bhsB1[B:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.67Å

e2bhsC2[C:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.67Å

e2bhsD1[D:2-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.67Å

e2bhtA1[A:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.100Å

e2bhtB1[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.100Å

e2bhtC1[C:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.100Å

e2bhtD1[D:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.100Å

e3bm5A1[A:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: CYS,PLP,SO4 ; X-RAY DIFFRACTION 2.4Å

e3bm5B2[B:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: CYS,PLP,SO4 ; X-RAY DIFFRACTION 2.4Å

e1d6sA1[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: MET,PLP ; X-RAY DIFFRACTION 2.3Å

e1d6sB2[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: MET,PLP ; X-RAY DIFFRACTION 2.3Å

e3dkiA2[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; X-RAY DIFFRACTION 2.10Å

e3dkiB2[B:0-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; ligands: NA ; X-RAY DIFFRACTION 2.10Å

e3dwgA2[A:-1-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 1.53Å

e3dwgB1[B:-1-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE B ; ligands: PLP ; X-RAY DIFFRACTION 1.53Å

e3dwiA1[A:1-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; ligands: PLP ; X-RAY DIFFRACTION 2.810Å

e3dwiB1[B:1-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 2.810Å

e2ecoA1[A:1-147] Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE (THIOL)-LYASE ; ligands: 4MV,PLP ; X-RAY DIFFRACTION 1.9Å

e2ecqA2[A:1-147] Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE (THIOL)-LYASE ; ligands: 3HL,PLP ; X-RAY DIFFRACTION 1.9Å

e2efyA1[A:1-147] Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE (THIOL)-LYASE ; ligands: 4AT,PLP ; X-RAY DIFFRACTION 2.35Å

e2efyB1[B:1-147] Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE (THIOL)-LYASE ; ligands: 4AT,PLP ; X-RAY DIFFRACTION 2.35Å

e2eguA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 1.9Å

e1fcjA1[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: CL,PLP,SO4 ; X-RAY DIFFRACTION

e1fcjB1[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: CL,PLP,SO4 ; X-RAY DIFFRACTION

e1fcjC2[C:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: CL,PLP,SO4 ; X-RAY DIFFRACTION

e1fcjD1[D:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: CL,PLP,SO4 ; X-RAY DIFFRACTION

e3fcaA2[A:1-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ZN ; X-RAY DIFFRACTION 2.149Å

e3fcaB1[B:1-138] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ZN ; X-RAY DIFFRACTION 2.149Å

e3fgpA2[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; X-RAY DIFFRACTION 2.05Å

e3fgpB2[B:0-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; X-RAY DIFFRACTION 2.05Å

e4ho1X1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

CYSTEINE SYNTHASE ; ligands: EDO ; X-RAY DIFFRACTION 1.86Å

e4i1yA1[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: SO4 ; X-RAY DIFFRACTION 2.600Å

e4i1yB2[B:0-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: CL ; X-RAY DIFFRACTION 2.600Å

e4i1yC1[C:-2-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 2.600Å

e4i1yD1[D:-1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 2.600Å

e4il5A2[A:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ILE ; X-RAY DIFFRACTION 2.03Å

e4il5B2[B:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ILE,SO4 ; X-RAY DIFFRACTION 2.03Å

e3iqgX2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 1.9Å

e3iqhX1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: SO4 ; X-RAY DIFFRACTION 1.9Å

e3iqiX2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 1.7Å

e2isqA1[A:3-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.8Å

e4jblA1[A:1-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 2.0Å

e4jblB2[B:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: MET ; X-RAY DIFFRACTION 2.0Å

e4jbnA1[A:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 1.87Å

e4jbnB2[B:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 1.87Å

e2jc3A1[A:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3B2[B:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3C1[C:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3D1[D:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3E2[E:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3F1[F:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3G2[G:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e2jc3H2[H:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE B ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e4lhgX2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

e4li3X2[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

CYSTEINE SYNTHASE ; X-RAY DIFFRACTION 2.59Å

e4lmaA2[A:1-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e4lmaB2[B:1-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.3Å

e4lmbA2[A:1-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: CYS,PLP ; X-RAY DIFFRACTION 1.91Å

e4mh9X1[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

e4miiX2[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

e4milX1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

e4nu8X1[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; X-RAY DIFFRACTION 2.030Å

e1oasA2[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: PLP ; X-RAY DIFFRACTION 2.2Å

e1oasB2[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: PLP ; X-RAY DIFFRACTION 2.2Å

e4ofxA1[A:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH

CYSTATHIONINE BETA-SYNTHASE ; ligands: NA ; X-RAY DIFFRACTION 1.74Å

e4oreX2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: OAS ; X-RAY DIFFRACTION 2.030Å

e2pqmA2[A:2-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 1.86Å

e2pqmB1[B:3-165] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 1.86Å

e2q3bA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE A ; ligands: CL,MPD ; X-RAY DIFFRACTION 1.8Å

e2q3cA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE A ; X-RAY DIFFRACTION 2.1Å

e2q3dA2[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase A ; ligands: PDA ; X-RAY DIFFRACTION 2.20Å

e4ql4A1[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH

e4r2vA2[A:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH

e4r2vB2[B:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH

e3rr2A1[A:0-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 1.950Å

e3spxA1[A:2-158] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-acetyl serine sulfhydrylase ; ligands: NA,PEG ; X-RAY DIFFRACTION 1.790Å

e3t4pA1[A:2-158] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-acetyl serine sulfhydrylase ; ligands: PEG ; X-RAY DIFFRACTION 1.77Å

e3tbhA1[A:2-158] Image Pymol Jmol Links: PDB, SCOP, CATH

O-acetyl serine sulfhydrylase ; ligands: NA ; X-RAY DIFFRACTION 1.68Å

e2v03A1[A:1-146] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase B ; ligands: CIT,GOL,PLP ; X-RAY DIFFRACTION 1.33Å

e3vbeA2[A:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-CYANOALNINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e3vbeB2[B:52-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-CYANOALNINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e3vbeC2[C:44-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-CYANOALNINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e3vbeD1[D:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

BETA-CYANOALNINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e3vc3A2[A:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e3vc3B1[B:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e3vc3C2[C:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e3vc3D1[D:50-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e3vc3E1[E:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e3vc3F2[F:51-202] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

beta-cyanoalnine synthase ; ligands: C6P ; X-RAY DIFFRACTION 1.7660Å

e1y7lA2[A:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: SO4 ; X-RAY DIFFRACTION 1.55Å

e1z7wA1[A:3-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 2.2Å

e1z7yA2[A:3-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: AA5 ; X-RAY DIFFRACTION 2.7Å

e3zeiA1[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ACETYLSERINE SULFHYDRYLASE ; ligands: AWH,PLP ; X-RAY DIFFRACTION 2.0Å

e4zu1X2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: OAS ; X-RAY DIFFRACTION 2.2Å

e4zu6X2[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: OAS,PLP ; X-RAY DIFFRACTION 2.03Å

e4zu8X2[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

e3x43A2[A:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43B1[B:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43C1[C:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43D2[D:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43E1[E:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43F2[F:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43G1[G:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x43H1[H:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.25Å

e3x44A1[A:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PUS ; X-RAY DIFFRACTION 1.9Å

e3x44B2[B:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-ureido-L-serine synthase ; ligands: PUS ; X-RAY DIFFRACTION 1.9Å

e5dbeX2[X:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: 0JO,OAS ; X-RAY DIFFRACTION 2.250Å

e5dbhX1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: 0JO ; X-RAY DIFFRACTION 1.98Å

e5hbgA2[A:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH

e5hbgB2[B:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH

; ligands: OAS

e5j43E1[E:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase A ; X-RAY DIFFRACTION 2.70Å

e5j43A2[A:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase A ; X-RAY DIFFRACTION 2.70Å

e5j5vA2[A:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase A ; X-RAY DIFFRACTION 2.75Å

e5j5vD2[D:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase A ; X-RAY DIFFRACTION 2.75Å

e5i6dA2[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: AU6,GOL,PLP ; X-RAY DIFFRACTION 1.64Å

e5i6dB2[B:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: AU6,GOL,PLP ; X-RAY DIFFRACTION 1.64Å

e5i6dC2[C:0-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: AU6,PLP ; X-RAY DIFFRACTION 1.64Å

e5i6dD1[D:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: AU6,PLP ; X-RAY DIFFRACTION 1.64Å

e5i7aA1[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68Q,PLP ; X-RAY DIFFRACTION 2.08Å

e5i7aB2[B:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68Q,PLP ; X-RAY DIFFRACTION 2.08Å

e5i7aC2[C:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68Q,PLP ; X-RAY DIFFRACTION 2.08Å

e5i7aD2[D:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68Q,PLP ; X-RAY DIFFRACTION 2.08Å

e5i7hA1[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68V,PLP ; X-RAY DIFFRACTION 2.57Å

e5i7hB2[B:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68V,PLP ; X-RAY DIFFRACTION 2.57Å

e5i7hC1[C:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68V,PLP ; X-RAY DIFFRACTION 2.57Å

e5i7hD2[D:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68V,PLP ; X-RAY DIFFRACTION 2.57Å

e5i7oA2[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: PLP,S16 ; X-RAY DIFFRACTION 2.49Å

e5i7oB1[B:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: PLP,S16 ; X-RAY DIFFRACTION 2.49Å

e5i7oC2[C:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: PLP,S16 ; X-RAY DIFFRACTION 2.49Å

e5i7oD2[D:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: PLP,S16 ; X-RAY DIFFRACTION 2.49Å

e5i7rB2[B:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68W,ACT,PLP ; X-RAY DIFFRACTION 1.73Å

e5i7rA2[A:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 68W,ACT,PLP ; X-RAY DIFFRACTION 1.73Å

e5iw8A2[A:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 6EC,NA,PLP ; X-RAY DIFFRACTION 2.04Å

e5iw8B1[B:3-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 6EC,PLP ; X-RAY DIFFRACTION 2.04Å

e5iwcA1[A:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 6EQ,PLP ; X-RAY DIFFRACTION 2.70Å

e5iwcB2[B:2-157] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-phosphoserine sulfhydrylase ; ligands: 6EQ,PLP ; X-RAY DIFFRACTION 2.70Å

e5b1hA1[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.39Å

e5b1hB2[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.39Å

e5b1hC2[C:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.39Å

e5b1hD2[D:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: GOL,SO4 ; X-RAY DIFFRACTION 2.39Å

e5b1iA1[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iB1[B:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iC1[C:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iD1[D:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iE2[E:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iF2[F:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iG1[G:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5b1iH1[H:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cystathionine beta-synthase ; ligands: AA5,SO4 ; X-RAY DIFFRACTION 3.3Å

e5xa2A2[A:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; X-RAY DIFFRACTION 2.034Å

e5xa2B1[B:1-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; X-RAY DIFFRACTION 2.034Å

e5b53A1[A:2-153] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.90Å

e5b54A2[A:6-153] Image Pymol Jmol Links: PDB, SCOP, CATH

e5b54B1[B:0-153] Image Pymol Jmol Links: PDB, SCOP, CATH

e5b54C1[C:4-153] Image Pymol Jmol Links: PDB, SCOP, CATH

e5b54D2[D:4-153] Image Pymol Jmol Links: PDB, SCOP, CATH

e5b55A2[A:3-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: 0JO,PLP ; X-RAY DIFFRACTION 2.14Å

e5b55B2[B:3-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: 0JO,PEG,PLP ; X-RAY DIFFRACTION 2.14Å

e5xw3A1[A:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-acetylserine lyase ; X-RAY DIFFRACTION 2.17Å

e5xw3B2[B:1-150] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

O-acetylserine lyase ; X-RAY DIFFRACTION 2.17Å

e5z5cA2[A:5-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: CL,PLP ; X-RAY DIFFRACTION 2.07Å

e5z5cB1[B:0-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: PLP ; X-RAY DIFFRACTION 2.07Å

e5z5cC1[C:4-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: CL,PLP ; X-RAY DIFFRACTION 2.07Å

e5z5cD2[D:4-153] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: CL,PLP ; X-RAY DIFFRACTION 2.07Å

e5xemA2[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: 85F,ACT,CA,PG0,PLP ; X-RAY DIFFRACTION 1.84Å

e5xemB1[B:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: 85F,ACT,CA,PEG,PG5,PLP ; X-RAY DIFFRACTION 1.84Å

e5xenA1[A:1-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ACT,CA,PLP,SER ; X-RAY DIFFRACTION 1.940Å

e5xenB1[B:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ACT,PEG,PLP,SER ; X-RAY DIFFRACTION 1.940Å

e5xeoA1[A:-3-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ACT,CA,PLP ; X-RAY DIFFRACTION 2.03Å

e5xeoB2[B:2-148] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: ACT,PEG,PLP ; X-RAY DIFFRACTION 2.03Å

e5xcnX2[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 1.69Å

e5xcpX1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 2.0Å

e5xcwX1[X:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 1.89Å

e5xoqA1[A:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; ligands: PEG ; X-RAY DIFFRACTION 1.87Å

e5xoqB1[B:0-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; X-RAY DIFFRACTION 1.87Å

e6ahiA2[A:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; X-RAY DIFFRACTION 1.9Å

e6ahiB1[B:1-152] Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

Cysteine synthase ; ligands: MET ; X-RAY DIFFRACTION 1.9Å

e6aifA1[A:2-149] Image Pymol Jmol Links: PDB, SCOP, CATH

Cysteine synthase ; X-RAY DIFFRACTION 2.3Å

e1ve1A2[A:148-302] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

O-ACETYLSERINE SULFHYDRYLASE ; ligands: PLP ; X-RAY DIFFRACTION 1.45Å

e1v71A1[A:6-161] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN C320.14 IN CHROMOSOME III ; ligands: PLP ; X-RAY DIFFRACTION 1.7Å

e1v71A2[A:162-323] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

HYPOTHETICAL PROTEIN C320.14 IN CHROMOSOME III ; ligands: MG,PLP ; X-RAY DIFFRACTION 1.7Å

e1tyzA1[A:1-169] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1-AMINOCYCLOPROPANE-1-CARBOXYLATE DEAMINASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 2.0Å

e1tyzA2[A:170-338] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1-AMINOCYCLOPROPANE-1-CARBOXYLATE DEAMINASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 2.0Å

e1v7cA1[A:1-164] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THREONINE SYNTHASE ; ligands: HEY ; X-RAY DIFFRACTION 2.0Å

e1v7cA2[A:165-351] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THREONINE SYNTHASE ; ligands: HEY ; X-RAY DIFFRACTION 2.0Å

e1wkvA2[A:97-230] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: ACT,PLP ; X-RAY DIFFRACTION 2.0Å

e1wkvA3[A:231-383] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTEINE SYNTHASE ; ligands: PLP ; X-RAY DIFFRACTION 2.0Å

e1ve5A1[A:2-152] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

THREONINE DEAMINASE ; ligands: PLP ; X-RAY DIFFRACTION 2.15Å

e1ve5A2[A:153-311] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

THREONINE DEAMINASE ; ligands: CA,PLP ; X-RAY DIFFRACTION 2.15Å

e1vb3A2[A:85-221] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH

THREONINE SYNTHASE ; ligands: KPA,SO4 ; X-RAY DIFFRACTION 2.2Å

e1e5xA2[A:131-270] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THREONINE SYNTHASE ; X-RAY DIFFRACTION 2.25Å

e1e5xA3[A:271-486] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

THREONINE SYNTHASE ; X-RAY DIFFRACTION 2.25Å

e1j0aA1[A:1-164] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1-AMINOCYCLOPROPANE-1-CARBOXYLATE DEAMINASE ; ligands: IPA,PLP,SO4 ; X-RAY DIFFRACTION 2.5Å

e1j0aA2[A:165-325] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

1-AMINOCYCLOPROPANE-1-CARBOXYLATE DEAMINASE ; ligands: PLP,SO4 ; X-RAY DIFFRACTION 2.5Å

e1p5jA1[A:4-142] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-serine dehydratase ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e1p5jA2[A:143-322] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

L-serine dehydratase ; ligands: PLP ; X-RAY DIFFRACTION 2.5Å

e1jbqA1[A:43-231] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTATHIONINE BETA-SYNTHASE ; ligands: HEM,PLP ; X-RAY DIFFRACTION 2.6Å

e1jbqA2[A:232-397] nonrep Image Pymol Jmol Links: PDB, SCOP, CATH, PubMed, DOI

CYSTATHIONINE BETA-SYNTHASE ; ligands: HEM,PLP ; X-RAY DIFFRACTION 2.6Å

F: Unmapped domains

Pseudo group of domains that do not map to PFam family profiles. Domains inside should not be considered as in one family.

mixed a+b and a/balpha and beta domain consists of both a+b and a/b regions

few secondary structure elementsstabilized by cofactors or disulfides

extended segmentsextended, non-globular segments, frequently bind to other proteins to form complexes