4PB4 | pdb_00004pb4

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e4pb4B1	A: Anticodon-binding domain of Class II aaRS	X: Anticodon-binding domain of Class II aaRS	H: Anticodon-binding domain of Class II aaRS	T: Flavodoxin_2	F:	ECOD (20:10:01)
A		e4pb4A1	A: Four-helical up-and-down bundle	X: Glycosyl hydrolase domain	H: Glycosyl hydrolase domain	T: SBP_bac_1	F:	ECOD (20:10:01)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.37.20	Mainly Beta	Beta Barrel	Lyase, Ornithine Decarboxylase	Chain A, domain 1	CATH (4.3.0)
B	3.20.20.10	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Alanine racemase	CATH (4.3.0)
A	2.40.37.20	Mainly Beta	Beta Barrel	Lyase, Ornithine Decarboxylase	Chain A, domain 1	CATH (4.3.0)
A	3.20.20.10	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Alanine racemase	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	D-threo-3-hydroxyaspartate dehydratase	lyase activity ammonia-lyase activity catalytic activity carbon-nitrogen lyase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding D-serine ammonia-lyase activity	catabolic process oxoacid metabolic process non-proteinogenic amino acid catabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid catabolic process D-serine metabolic process alpha-amino acid metabolic process non-proteinogenic amino acid metabolic process alpha-amino acid catabolic process carboxylic acid catabolic process D-amino acid metabolic process catabolic process oxoacid metabolic process non-proteinogenic amino acid catabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid catabolic process D-serine metabolic process alpha-amino acid metabolic process non-proteinogenic amino acid metabolic process alpha-amino acid catabolic process carboxylic acid catabolic process D-amino acid metabolic process metabolic process cellular process small molecule metabolic process small molecule catabolic process D-amino acid catabolic process amino acid catabolic process D-serine catabolic process	-

Chains	Accession	Name	Type
A, B	IPR029066	PLP-binding barrel	Homologous Superfamily
A, B	IPR042208	D-serine dehydratase-like domain superfamily	Homologous Superfamily
A, B	IPR026956	D-serine dehydratase-like domain	Domain
A, B	IPR051466	D-amino acid metabolism enzyme	Family
A, B	IPR001608	Alanine racemase, N-terminal	Domain