Annotations: 4B6J

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HAD	e4b6jA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: HAD	ECOD (1.6)
B	HAD	e4b6jB1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: HAD	ECOD (1.6)
C	HAD	e4b6jC1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: HAD	ECOD (1.6)
D	HAD	e4b6jD1	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: HAD	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HAD superfamily/HAD-like	CATH (4.3.0)
A	1.10.150.210	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
B	3.40.50.1000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HAD superfamily/HAD-like	CATH (4.3.0)
B	1.10.150.210	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
C	3.40.50.1000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HAD superfamily/HAD-like	CATH (4.3.0)
C	1.10.150.210	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
D	3.40.50.1000	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HAD superfamily/HAD-like	CATH (4.3.0)
D	1.10.150.210	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PHOSPHOSERINE PHOSPHATASE	cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity L-phosphoserine phosphatase activity catalytic activity	oxoacid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process L-serine metabolic process L-serine biosynthetic process L-amino acid metabolic process carboxylic acid biosynthetic process proteinogenic amino acid metabolic process amino acid biosynthetic process oxoacid metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process alpha-amino acid metabolic process L-serine metabolic process L-serine biosynthetic process L-amino acid metabolic process carboxylic acid biosynthetic process proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process small molecule metabolic process serine family amino acid biosynthetic process alpha-amino acid biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR050582	HAD-like hydrolase superfamily, SerB	Family
A, B, C, D	IPR036412	HAD-like superfamily	Homologous Superfamily
A, B, C, D	IPR023214	HAD superfamily	Homologous Superfamily

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.