Annotations: 3HA1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e3ha1B1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: HTH_3	F:	ECOD (20:10:01)
A		e3ha1A1	A: Spectrin repeat-like	X: SH3	H: SH3	T: Rieske	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.37.10	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	2.40.37.10	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, B	PF00842	Alanine racemase, C-terminal domain (Ala_racemase_C)	Alanine racemase, C-terminal domain		Domain
A, B	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, B	Alanine racemase	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding isomerase activity racemase and epimerase activity alanine racemase activity racemase and epimerase activity, acting on amino acids and derivatives amino-acid racemase activity catalytic activity vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding isomerase activity racemase and epimerase activity alanine racemase activity racemase and epimerase activity, acting on amino acids and derivatives amino-acid racemase activity catalytic activity cation binding metal ion binding	carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis cell wall organization or biogenesis glycosaminoglycan metabolic process carbohydrate derivative metabolic process macromolecule biosynthetic process cellular component biogenesis peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process aminoglycan metabolic process peptidoglycan metabolic process aminoglycan biosynthetic process carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis cell wall organization or biogenesis glycosaminoglycan metabolic process carbohydrate derivative metabolic process macromolecule biosynthetic process cellular component biogenesis peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process aminoglycan metabolic process peptidoglycan metabolic process aminoglycan biosynthetic process cellular process metabolic process glycosaminoglycan biosynthetic process cellular component organization or biogenesis macromolecule metabolic process cell wall macromolecule metabolic process oxoacid metabolic process amino acid metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process D-alanine metabolic process carboxylic acid biosynthetic process non-proteinogenic amino acid metabolic process D-amino acid metabolic process small molecule metabolic process alanine biosynthetic process non-proteinogenic amino acid biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process primary metabolic process amino acid biosynthetic process D-amino acid biosynthetic process D-alanine biosynthetic process alanine metabolic process alpha-amino acid biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

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

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	LLP	Parent Component: LYS RESID: AA0119 PSI-MOD : N6-pyridoxal phosphate-L-lysine MOD:00128

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.