Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyGST C-terminal domain-like 8042707 3000305 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyThioredoxin-like 8042708 3000031 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyGST C-terminal domain-like 8042707 3000305 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyThioredoxin-like 8042708 3000031 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AGST_C_3e1pkwA1 A: alpha superhelicesX: Repetitive alpha hairpinsH: Glutathione S-transferase (GST)-C (From Topology)T: Glutathione S-transferase (GST)-CF: GST_C_3ECOD (1.6)
AGST_N_5e1pkwA2 A: a+b three layersX: Thioredoxin-likeH: Thioredoxin-like (From Topology)T: Thioredoxin-likeF: GST_N_5ECOD (1.6)
BGST_C_3e1pkwB1 A: alpha superhelicesX: Repetitive alpha hairpinsH: Glutathione S-transferase (GST)-C (From Topology)T: Glutathione S-transferase (GST)-CF: GST_C_3ECOD (1.6)
BGST_N_5e1pkwB2 A: a+b three layersX: Thioredoxin-likeH: Thioredoxin-like (From Topology)T: Thioredoxin-likeF: GST_N_5ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF00043Glutathione S-transferase, C-terminal domain (GST_C)Glutathione S-transferase, C-terminal domainGST conjugates reduced glutathione to a variety of targets including S-crystallin from squid, the eukaryotic elongation factor 1-gamma, the HSP26 family of stress-related proteins and auxin-regulated proteins in plants. Stringent starvation proteins ...GST conjugates reduced glutathione to a variety of targets including S-crystallin from squid, the eukaryotic elongation factor 1-gamma, the HSP26 family of stress-related proteins and auxin-regulated proteins in plants. Stringent starvation proteins in E. coli are also included in the alignment but are not known to have GST activity. The glutathione molecule binds in a cleft between N and C-terminal domains. The catalytically important residues are proposed to reside in the N-terminal domain [1]. In plants, GSTs are encoded by a large gene family (48 GST genes in Arabidopsis) and can be divided into the phi, tau, theta, zeta, and lambda classes [2].
Domain
A, B
PF02798Glutathione S-transferase, N-terminal domain (GST_N)Glutathione S-transferase, N-terminal domainFunction: conjugation of reduced glutathione to a variety of targets. Also included in the alignment, but not GSTs: S-crystallins from squid (similarity to GST previously noted); eukaryotic elongation factors 1-gamma (not known to have GST activity a ...Function: conjugation of reduced glutathione to a variety of targets. Also included in the alignment, but not GSTs: S-crystallins from squid (similarity to GST previously noted); eukaryotic elongation factors 1-gamma (not known to have GST activity and similarity not previously recognised); HSP26 family of stress-related proteins including auxin-regulated proteins in plants and stringent starvation proteins in E. coli (not known to have GST activity and similarity not previously recognised). The glutathione molecule binds in a cleft between the N- and C-terminal domains - the catalytically important residues are proposed to reside in the N-terminal domain [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Glutathione S-transferase A1

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
A, B
CSO Parent Component: CYS

RESIDAA0205

PSI-MOD :  L-cysteine sulfenic acid MOD:00210

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
Glutathione S-transferase A  M-CSA #993

Glutathione transferase (GST) is a detoxification enzyme found in the liver. GSTs are the most important enzymes involved in the metabolism of electrophilic xenobiotic/endobiotic compounds. These enzymes are able to catalyze the nucleophilic addition of glutathione (GSH) sulfur thiolate to a wide range of electrophilic substrates, building up a less toxic and more soluble compound. Classes alpha, pi, and mu are the most extensively studied GSTs. GSTA and GSTP are similar in active site residues and have the same mechanism for glutathione transfer.

Defined by 2 residues: TYR:A-9ARG:A-15
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