Annotations: 4BEQ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Choline_kinase, EcKL	e4beqA1	A: a/b three-layered sandwiches	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: Choline_kinase, EcKL	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.37.10	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00842	Alanine racemase, C-terminal domain (Ala_racemase_C)	Alanine racemase, C-terminal domain		Domain
A	PF01168	Alanine racemase, N-terminal domain (Ala_racemase_N)	Alanine racemase, N-terminal domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ALANINE RACEMASE 2	isomerase activity racemase and epimerase activity ornithine racemase activity racemase and epimerase activity, acting on amino acids and derivatives amino-acid racemase activity catalytic activity lysine racemase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding isomerase activity racemase and epimerase activity ornithine racemase activity racemase and epimerase activity, acting on amino acids and derivatives amino-acid racemase activity catalytic activity lysine racemase activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding serine racemase activity alanine racemase activity arginine racemase activity methionine racemase activity	small molecule biosynthetic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process non-proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process D-amino acid biosynthetic process D-amino acid metabolic process small molecule biosynthetic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process non-proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process D-amino acid biosynthetic process D-amino acid metabolic process small molecule metabolic process metabolic process cellular process alanine biosynthetic process D-alanine biosynthetic process alpha-amino acid biosynthetic process non-proteinogenic amino acid biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol extracellular region periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029066	PLP-binding barrel	Homologous Superfamily
A	IPR020622	Alanine racemase, pyridoxal-phosphate attachment site	Binding Site
A	IPR011079	Alanine racemase, C-terminal	Domain
A	IPR043698	Racemase Bsr/Lyr	Family
A	IPR009006	Alanine racemase/group IV decarboxylase, C-terminal	Homologous Superfamily
A	IPR001608	Alanine racemase, N-terminal	Domain
A	IPR000821	Alanine racemase	Family

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.