Annotations: 6QKB

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	ubiquitin	e6qkbB1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: ubiquitin	ECOD (v294.1)
A	Cas_Csm6_HEPN	e6qkbA1	A: a/b three-layered sandwiches	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Cas_Csm6_HEPN	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

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 (utative)
B	3.20.20.10	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Alanine racemase	CATH (utative)
A	2.40.37.20	Mainly Beta	Beta Barrel	Lyase, Ornithine Decarboxylase	Chain A, domain 1	CATH (utative)
A	3.20.20.10	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Alanine racemase	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF14031	Putative serine dehydratase domain (D-ser_dehydrat)	Putative serine dehydratase domain	This domain is found at the C-terminus of yeast D-serine dehydratase [1]. Structures have been solved for two bacterial members of this family. The yeast protein has been shown to be a zinc dependent enzyme.	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	D-3-hydroxyaspartate aldolase	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding vitamin binding vitamin B6 binding pyridoxal phosphate binding anion binding heterocyclic compound binding D-serine ammonia-lyase activity lyase activity ammonia-lyase activity cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding vitamin binding vitamin B6 binding pyridoxal phosphate binding anion binding heterocyclic compound binding D-serine ammonia-lyase activity lyase activity ammonia-lyase activity catalytic activity carbon-nitrogen lyase activity oxo-acid-lyase activity carbon-carbon 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 catabolic process organic acid 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 catabolic process oxoacid metabolic process non-proteinogenic amino acid catabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid catabolic process organic acid 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 alcohol catabolic process primary alcohol catabolic process glycolate catabolic process alcohol metabolic process monocarboxylic acid catabolic process monocarboxylic acid metabolic process primary alcohol metabolic process glycolate metabolic process glyoxylate metabolic process aldehyde metabolic process glyoxylate catabolic process aldehyde catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

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	IPR054854	3-hydroxy-D-aspartate aldolase BhcC	Family
A, B	IPR051466	D-amino acid metabolism enzyme	Family
A, B	IPR001608	Alanine racemase, N-terminal	Domain

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.