Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyD-aminoacid aminotransferase-like PLP-dependent enzymes 8025187 4002874 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyD-aminoacid aminotransferase-like PLP-dependent enzymes 8037566 3001836 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyD-aminoacid aminotransferase-like PLP-dependent enzymes 8037566 3001836 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AAminotran_4_Ne1daaA2 A: a+b two layersX: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)H: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)T: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymesF: Aminotran_4_NECOD (1.6)
AAminotran_4_Ce1daaA1 A: a+b two layersX: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)H: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)T: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymesF: Aminotran_4_CECOD (1.6)
BAminotran_4_Ne1daaB2 A: a+b two layersX: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)H: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)T: a+b domain in D-aminoacid aminotransferase-like PLP-dependent enzymesF: Aminotran_4_NECOD (1.6)
BAminotran_4_Ce1daaB1 A: a+b two layersX: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)H: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymes (From Topology)T: barrel domain in D-aminoacid aminotransferase-like PLP-dependent enzymesF: Aminotran_4_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF01063Amino-transferase class IV (Aminotran_4)Amino-transferase class IVThe D-amino acid transferases (D-AAT) are required by bacteria to catalyse the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the diff ...The D-amino acid transferases (D-AAT) are required by bacteria to catalyse the synthesis of D-glutamic acid and D-alanine, which are essential constituents of bacterial cell wall and are the building block for other D-amino acids. Despite the difference in the structure of the substrates, D-AATs and L-ATTs have strong similarity.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
D-AMINO ACID AMINOTRANSFERASE -

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

ChainsEnzyme NameDescriptionCatalytic Residues
D-alanine transaminase  M-CSA #66

D-Amino acid aminotransferase (D-aAt) catalyses the transamination of various D-amino acids, forming their respective keto acids. The enzyme has no sequence similarity to the well studied L-amino acid aminotransferase but does have significant sequence overlap with a bacterial branched-chain L-amino acid aminotransferase and 4-amino-4-deoxychorismate lyase. D-aAt is essential for the synthesis of bacterial cell wall components and has been a target of research in the development of antimicrobial agents.

Acts on the D-isomers of alanine, leucine, aspartate, glutamate, aminobutyrate, norvaline and asparagine. The enzyme transfers an amino group from a substrate D-amino acid to the pyridoxal phosphate cofactor to form pyridoxamine and an alpha-keto acid in the first half-reaction. The second-half reaction is the reverse of the first, transferring the amino group from the pyridoxamine to a second alpha-keto acid to form the product D-amino acid via a ping-pong mechanism. This is an important process in the formation of D-alanine and D-glutamate, which are essential bacterial cell wall components.

Defined by 4 residues: TYR:A-31LYS:A-145GLU:A-177LEU:A-201
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