Annotations: 4PG5

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Homoserine_dh	e4pg5B2	A: a+b two layers	X: FwdE/GAPDH domain-like	H: Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain (From Topology)	T: Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain	F: Homoserine_dh	ECOD (1.6)
B	EUF08351	e4pg5B3	A: a+b two layers	X: Alpha-beta plaits	H: ACT-like (From Topology)	T: ACT-like	F: EUF08351	ECOD (1.6)
B	NAD_binding_3	e4pg5B1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: NAD_binding_3	ECOD (1.6)
A	Homoserine_dh	e4pg5A1	A: a+b two layers	X: FwdE/GAPDH domain-like	H: Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain (From Topology)	T: Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain	F: Homoserine_dh	ECOD (1.6)
A	EUF08351	e4pg5A3	A: a+b two layers	X: Alpha-beta plaits	H: ACT-like (From Topology)	T: ACT-like	F: EUF08351	ECOD (1.6)
A	NAD_binding_3	e4pg5A2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: NAD_binding_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.2.0)
B	3.30.360.10	Alpha Beta	2-Layer Sandwich	Dihydrodipicolinate Reductase	domain 2	CATH (4.2.0)
B	3.30.70.3100	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.2.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.2.0)
A	3.30.360.10	Alpha Beta	2-Layer Sandwich	Dihydrodipicolinate Reductase	domain 2	CATH (4.2.0)
A	3.30.70.3100	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits		CATH (4.2.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Homoserine dehydrogenase	binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor homoserine dehydrogenase activity oxidoreductase activity, acting on CH-OH group of donors catalytic activity cation binding binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor homoserine dehydrogenase activity oxidoreductase activity, acting on CH-OH group of donors catalytic activity cation binding ion binding metal ion binding	oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process methionine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process methionine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process methionine metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process threonine biosynthetic process threonine metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR019811	Homoserine dehydrogenase, conserved site	Conserved Site
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR016204	Homoserine dehydrogenase	Family
A, B	IPR001342	Homoserine dehydrogenase, catalytic	Domain
A, B	IPR054326	Homoserine dehydrogenase, C-terminal domain	Domain
A, B	IPR005106	Aspartate/homoserine dehydrogenase, NAD-binding	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.