Annotations: 3QHA

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DNA_pol_lambd_f	e3qhaA3	A: alpha bundles	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F: DNA_pol_lambd_f	ECOD (develop294)
A	Amidase_2	e3qhaA2	A: alpha bundles	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: Amidase_2	ECOD (develop294)
B	HSCB_C	e3qhaB3	A: alpha bundles	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: HSCB_C	ECOD (develop294)
B	Amidase_2	e3qhaB2	A: alpha bundles	X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4	F: Amidase_2	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	1.10.1040.10	Mainly Alpha	Orthogonal Bundle	N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase	domain 2	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	1.10.1040.10	Mainly Alpha	Orthogonal Bundle	N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase	domain 2	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Putative oxidoreductase	oxidoreductase activity catalytic activity binding nucleoside phosphate binding purine nucleotide binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding NADP binding small molecule binding NAD binding	catabolic process small molecule metabolic process metabolic process cellular process organic acid catabolic process organic acid metabolic process small molecule catabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015815	3-hydroxyisobutyrate dehydrogenase-related	Family
A, B	IPR006115	6-phosphogluconate dehydrogenase, NADP-binding	Domain
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR013328	6-phosphogluconate dehydrogenase, domain 2	Homologous Superfamily
A, B	IPR029154	3-hydroxyisobutyrate dehydrogenase-like, NAD-binding domain	Domain
A, B	IPR002204	3-hydroxyisobutyrate dehydrogenase-related, conserved site	Conserved Site
A, B	IPR008927	6-phosphogluconate dehydrogenase-like, C-terminal domain 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.