1AAM

THE STRUCTURAL BASIS FOR THE ALTERED SUBSTRATE SPECIFICITY OF THE R292D ACTIVE SITE MUTANT OF ASPARTATE AMINOTRANSFERASE FROM E. COLI


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1aama_ Alpha and beta proteins (a/b) PLP-dependent transferase-like PLP-dependent transferases AAT-like Aspartate aminotransferase, AAT (Escherichia coli ) [TaxId: 562 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyPLP-dependent transferases 8035818 3000954 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AAminotran_1_2_C_5e1aamA2 A: a+b two layersX: C-terminal domain in some PLP-dependent transferases (From Topology)H: C-terminal domain in some PLP-dependent transferases (From Topology)T: C-terminal domain in some PLP-dependent transferasesF: Aminotran_1_2_C_5ECOD (1.6)
AAminotran_1_2_Ne1aamA3 A: a/b three-layered sandwichesX: PLP-dependent transferases (From Topology)H: PLP-dependent transferases (From Topology)T: PLP-dependent transferasesF: Aminotran_1_2_NECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.90.1150.10 Alpha Beta Alpha-Beta Complex Aspartate Aminotransferase, domain 1 Aspartate Aminotransferase, domain 1CATH (4.3.0)
A3.40.640.10 Alpha Beta 3-Layer(aba) Sandwich Aspartate Aminotransferase domain 2CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00155Aminotransferase class I and II (Aminotran_1_2)Aminotransferase class I and II- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
ASPARTATE AMINOTRANSFERASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
aspartate transaminase  M-CSA #777

Aspartyl transferase is able to catalyse the PLP dependent transamination reaction between aspartate and 2-oxoglutarate, forming oxaloacetate and glutamate. It is part of the family of PLP dependent amino acid transferase enzymes which have high sequence homology and identical active site organisation, with the only difference being in the amino acid and ketoacid substrates. The enzymes all play key roles in the catabolism of amino acids as the products feed into the Krebs cycle and the Urea cycle.

Defined by 3 residues: TRP:A-130 [auth A-142]ASP:A-211 [auth A-223]LYS:A-246 [auth A-258]
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