Annotations: 1PTM

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ptma_	Alpha and beta proteins (a/b)	Isocitrate/Isopropylmalate dehydrogenase-like	Isocitrate/Isopropylmalate dehydrogenase-like	PdxA-like	4-hydroxythreonine-4-phosphate dehydrogenase PdxA	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1ptmb_	Alpha and beta proteins (a/b)	Isocitrate/Isopropylmalate dehydrogenase-like	Isocitrate/Isopropylmalate dehydrogenase-like	PdxA-like	4-hydroxythreonine-4-phosphate dehydrogenase PdxA	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	PdxA-like	8026690	4001202	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Isocitrate/Isopropylmalate dehydrogenase-like	8039069	3001375	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Isocitrate/Isopropylmalate dehydrogenase-like	8039069	3001375	SCOP2B (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	PdxA	e1ptmA1	A: a/b three-layered sandwiches	X: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	H: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	T: Isocitrate/Isopropylmalate dehydrogenase-like	F: PdxA	ECOD (1.6)
B	PdxA	e1ptmB2	A: a/b three-layered sandwiches	X: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	H: Isocitrate/Isopropylmalate dehydrogenase-like (From Topology)	T: Isocitrate/Isopropylmalate dehydrogenase-like	F: PdxA	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.718.10	Alpha Beta	3-Layer(aba) Sandwich	Isopropylmalate Dehydrogenase	Isopropylmalate Dehydrogenase	CATH (4.3.0)
B	3.40.718.10	Alpha Beta	3-Layer(aba) Sandwich	Isopropylmalate Dehydrogenase	Isopropylmalate Dehydrogenase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF04166	Pyridoxal phosphate biosynthetic protein PdxA (PdxA)	Pyridoxal phosphate biosynthetic protein PdxA	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	4-hydroxythreonine-4-phosphate dehydrogenase	cation binding transition metal ion binding ion binding binding metal ion binding cobalt ion binding small molecule binding magnesium ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity NAD binding nucleoside phosphate binding cation binding transition metal ion binding ion binding binding metal ion binding cobalt ion binding small molecule binding magnesium ion binding identical protein binding protein binding protein homodimerization activity protein dimerization activity NAD binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding zinc ion binding oxidoreductase activity 4-hydroxythreonine-4-phosphate dehydrogenase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors catalytic activity	cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process aldehyde biosynthetic process organic substance metabolic process pyridoxal phosphate biosynthetic process cellular aldehyde metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process phosphorus metabolic process water-soluble vitamin metabolic process cellular biosynthetic process organic hydroxy compound metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process aldehyde biosynthetic process organic substance metabolic process pyridoxal phosphate biosynthetic process cellular aldehyde metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process pyridine-containing compound metabolic process small molecule metabolic process phosphorus metabolic process water-soluble vitamin metabolic process vitamin B6 biosynthetic process organonitrogen compound metabolic process water-soluble vitamin biosynthetic process small molecule biosynthetic process cellular metabolic process pyridine-containing compound biosynthetic process vitamin metabolic process organic cyclic compound metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process organic hydroxy compound biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process vitamin B6 metabolic process pyridoxal phosphate metabolic process pyridoxine biosynthetic process pyridoxine metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR005255	PdxA family	Family
A, B	IPR037510	4-hydroxythreonine-4-phosphate dehydrogenase	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.