Annotations: 6JKH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Pico_P1A	e6jkhB1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: Pico_P1A	ECOD (v294.1)
A	Pico_P1A	e6jkhA1	A: a/b three-layered sandwiches	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Family A G protein-coupled receptor-like	F: Pico_P1A	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01073	3-beta hydroxysteroid dehydrogenase/isomerase family (3Beta_HSD)	3-beta hydroxysteroid dehydrogenase/isomerase family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Sterol-4-alpha-carboxylate 3-dehydrogenase, decarboxylating	oxidoreductase 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 steroid dehydrogenase activity 3-beta-hydroxysteroid dehydrogenase [NAD(P)+]/C4-decarboxylase activity steroid dehydrogenase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor 3-beta-hydroxysteroid dehydrogenase (NAD+)/C4-decarboxylase activity 3-beta-hydroxy-Delta5-steroid dehydrogenase (NAD+) activity	cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication cellular process signal transduction labyrinthine layer blood vessel development developmental process placenta blood vessel development cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication cellular process signal transduction labyrinthine layer blood vessel development developmental process placenta blood vessel development multicellular organismal process placenta development chordate embryonic development animal organ development labyrinthine layer development embryo development in utero embryonic development vasculature development circulatory system development multicellular organism development embryonic placenta development embryo development ending in birth or egg hatching anatomical structure development embryonic organ development blood vessel development system development epithelium development epidermis development molting cycle process hair cycle tissue development skin development skin epidermis development hair follicle development molting cycle hair cycle process secondary alcohol biosynthetic process small molecule biosynthetic process cholesterol biosynthetic process sterol metabolic process steroid metabolic process cholesterol metabolic process lipid biosynthetic process alcohol metabolic process primary metabolic process cholesterol biosynthetic process via lathosterol secondary alcohol metabolic process biosynthetic process sterol biosynthetic process alcohol biosynthetic process small molecule metabolic process metabolic process steroid biosynthetic process lipid metabolic process	lipid droplet intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle membrane-bounded organelle endoplasmic reticulum cytoplasm intracellular membrane-bounded organelle endomembrane system organelle subcompartment membrane lipid droplet intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle membrane-bounded organelle endoplasmic reticulum cytoplasm intracellular membrane-bounded organelle endomembrane system organelle subcompartment membrane endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050177	Bifunctional lipid A modification and metabolic enzymes	Family
A, B	IPR002225	3-beta hydroxysteroid dehydrogenase/isomerase	Domain
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q15738	CHILD syndrome CK syndrome intellectual disability head and neck squamous cell carcinoma ovarian cancer peroxisomal disease pancreatic ductal adenocarcinoma psoriasis Epileptic encephalopathy osteosarcoma pancreatic intraductal papillary-mucinous neoplasm

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Monotopic/peripheral	Alpha/Beta monotopic/peripheral	3-beta hydroxysteroid dehydrogenase/isomerase	3-beta hydroxysteroid dehydrogenase/isomerase

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.