4Y8W

Crystal Structure of Human Cytochrome P450 21A2 Progesterone Complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4y8wa1	All alpha proteins	Cytochrome P450	Cytochrome P450	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4y8wa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4y8wb1	All alpha proteins	Cytochrome P450	Cytochrome P450	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4y8wb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d4y8wc1	All alpha proteins	Cytochrome P450	Cytochrome P450	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d4y8wc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochrome P450	8068659	3001061	SCOP2B (2022-06-29)
B	SCOP2 Family	Cytochrome P450	8068658	4001206	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Cytochrome P450	8068659	3001061	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Cytochrome P450	8068659	3001061	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	p450	e4y8wA1	A: alpha arrays	X: Cytochrome P450 (From Topology)	H: Cytochrome P450 (From Topology)	T: Cytochrome P450	F: p450	ECOD (1.6)
B	p450	e4y8wB1	A: alpha arrays	X: Cytochrome P450 (From Topology)	H: Cytochrome P450 (From Topology)	T: Cytochrome P450	F: p450	ECOD (1.6)
C	p450	e4y8wC1	A: alpha arrays	X: Cytochrome P450 (From Topology)	H: Cytochrome P450 (From Topology)	T: Cytochrome P450	F: p450	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.630.10	Mainly Alpha	Orthogonal Bundle	Cytochrome p450	Cytochrome P450	CATH (4.3.0)
B	1.10.630.10	Mainly Alpha	Orthogonal Bundle	Cytochrome p450	Cytochrome P450	CATH (4.3.0)
C	1.10.630.10	Mainly Alpha	Orthogonal Bundle	Cytochrome p450	Cytochrome P450	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00067	Cytochrome P450 (p450)	Cytochrome P450	Cytochrome P450s are haem-thiolate proteins [6] involved in the oxidative degradation of various compounds. They are particularly well known for their role in the degradation of environmental toxins and mutagens. They can be divided into 4 classes, a ...	Cytochrome P450s are haem-thiolate proteins [6] involved in the oxidative degradation of various compounds. They are particularly well known for their role in the degradation of environmental toxins and mutagens. They can be divided into 4 classes, according to the method by which electrons from NAD(P)H are delivered to the catalytic site. Sequence conservation is relatively low within the family - there are only 3 absolutely conserved residues - but their general topography and structural fold are highly conserved. The conserved core is composed of a coil termed the 'meander', a four-helix bundle, helices J and K, and two sets of beta-sheets. These constitute the haem-binding loop (with an absolutely conserved cysteine that serves as the 5th ligand for the haem iron), the proton-transfer groove and the absolutely conserved EXXR motif in helix K. While prokaryotic P450s are soluble proteins, most eukaryotic P450s are associated with microsomal membranes. their general enzymatic function is to catalyse regiospecific and stereospecific oxidation of non-activated hydrocarbons at physiological temperatures [6].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Cytochrome P450 21-hydroxylase	binding organic cyclic compound binding tetrapyrrole binding heme binding oxidoreductase activity monooxygenase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen steroid 21-monooxygenase activity catalytic activity steroid hydroxylase activity progesterone 21-hydroxylase activity cation binding transition metal ion binding iron ion binding binding organic cyclic compound binding tetrapyrrole binding heme binding oxidoreductase activity monooxygenase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen steroid 21-monooxygenase activity catalytic activity steroid hydroxylase activity progesterone 21-hydroxylase activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding 17-hydroxyprogesterone 21-hydroxylase activity steroid binding lipid binding	mineralocorticoid biosynthetic process regulation of hormone levels steroid metabolic process biological regulation lipid biosynthetic process primary metabolic process hormone metabolic process mineralocorticoid metabolic process biosynthetic process metabolic process cellular process regulation of biological quality steroid biosynthetic process hormone biosynthetic process mineralocorticoid biosynthetic process regulation of hormone levels steroid metabolic process biological regulation lipid biosynthetic process primary metabolic process hormone metabolic process mineralocorticoid metabolic process biosynthetic process metabolic process cellular process regulation of biological quality steroid biosynthetic process hormone biosynthetic process steroid hormone biosynthetic process lipid metabolic process sterol metabolic process organic hydroxy compound metabolic process glucocorticoid metabolic process glucocorticoid biosynthetic process	membrane-bounded organelle intracellular anatomical structure organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane membrane-bounded organelle intracellular anatomical structure organelle subcompartment membrane intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR002401	Cytochrome P450, E-class, group I	Family
A, B, C	IPR017972	Cytochrome P450, conserved site	Conserved Site
A, B, C	IPR001128	Cytochrome P450	Family
A, B, C	IPR036396	Cytochrome P450 superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: P08686	congenital adrenal hyperplasia classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency neuromyelitis optica psoriatic arthritis squamous cell lung carcinoma vitiligo adrenal rest tumor autism spectrum disorder endometriosis heart disease Hyperandrogenism, Nonclassic Type, due to 21-Hydroxylase Deficiency lung carcinoma non-alcoholic fatty liver disease sarcoidosis systemic lupus erythematosus congenital adrenal hyperplasia classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency neuromyelitis optica psoriatic arthritis squamous cell lung carcinoma vitiligo adrenal rest tumor autism spectrum disorder endometriosis heart disease Hyperandrogenism, Nonclassic Type, due to 21-Hydroxylase Deficiency lung carcinoma non-alcoholic fatty liver disease sarcoidosis systemic lupus erythematosus wet macular degeneration age-related macular degeneration cervical cancer eosinophilic esophagitis hepatitis B virus infection hypertensive disorder membranous glomerulonephritis non-classic congenital adrenal hyperplasia skin basal cell carcinoma ulcerative colitis X-linked adrenal hypoplasia congenita atopic eczema Hashimoto thyroiditis hyperandrogenism inherited lipid metabolism disorder

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM				Cytochrome P450

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.