1RCQ

The 1.45 A crystal structure of alanine racemase from a pathogenic bacterium, Pseudomonas aeruginosa, contains both internal and external aldimine forms

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1rcqa1	All beta proteins	Domain of alpha and beta subunits of F1 ATP synthase-like	Alanine racemase C-terminal domain-like	Alanine racemase-like, C-terminal domain	Alanine racemase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)
A	d1rcqa2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	PLP-binding barrel	Alanine racemase-like, N-terminal domain	Alanine racemase	(Pseudomonas aeruginosa ) [TaxId: 287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Alanine racemase	8026441	4003518	SCOP2 (2022-06-29)
A	SCOP2 Family	Alanine racemase-like, N-terminal domain	8026442	4003111	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Alanine racemase C-terminal domain-like	8038820	3001044	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PLP-binding barrel	8038821	3000273	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Ala_racemase_C	e1rcqA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: Ala_racemase_C	ECOD (1.6)
A	Ala_racemase_N	e1rcqA2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Ala_racemase_N	ECOD (1.6)

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	catabolic alanine racemase DadX	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding racemase activity, acting on amino acids and derivatives isomerase activity racemase and epimerase activity alanine racemase activity racemase and epimerase activity, acting on amino acids and derivatives vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding organic cyclic compound binding anion binding heterocyclic compound binding small molecule binding racemase activity, acting on amino acids and derivatives 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	oxoacid metabolic process cellular biosynthetic 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 oxoacid metabolic process cellular biosynthetic 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 cellular metabolic process carboxylic acid metabolic process primary metabolic process amino acid biosynthetic process biosynthetic process D-amino acid biosynthetic process metabolic process cellular process D-alanine biosynthetic process alanine metabolic process alpha-amino acid biosynthetic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

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