4X8Y

Crystal structure of human PGRMC1 cytochrome b5-like domain

External Resource: Annotation

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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochrome b5-like heme/steroid binding domain	8089186	3000073	SCOP2B (2022-06-29)
B	SCOP2 Family	Steroid-binding domain	8089185	4001559	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Cytochrome b5-like heme/steroid binding domain	8089186	3000073	SCOP2 (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	Cyt-b5	e4x8yA1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)
B	Cyt-b5	e4x8yB1	A: a+b two layers	X: Cystatin-like	H: Cytochrome b5-like heme/steroid binding domain (From Topology)	T: Cytochrome b5-like heme/steroid binding domain	F: Cyt-b5	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)
B	3.10.120.10	Alpha Beta	Roll	Flavocytochrome B2	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00173	Cytochrome b5-like Heme/Steroid binding domain (Cyt-b5)	Cytochrome b5-like Heme/Steroid binding domain	This family includes heme binding domains from a diverse range of proteins. This family also includes proteins that bind to steroids. The family includes progesterone receptors such as Swiss:O00264 [1,2]. Many members of this subfamily are membrane a ...	This family includes heme binding domains from a diverse range of proteins. This family also includes proteins that bind to steroids. The family includes progesterone receptors such as Swiss:O00264 [1,2]. Many members of this subfamily are membrane anchored by an N-terminal transmembrane alpha helix. This family also includes a domain in some chitin synthases. There is no known ligand for this domain in the chitin synthases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Membrane-associated progesterone receptor component 1	amide binding amyloid-beta binding binding peptide binding identical protein binding protein binding protein homodimerization activity protein dimerization activity organic cyclic compound binding tetrapyrrole binding heme binding steroid binding lipid binding cation binding amide binding amyloid-beta binding binding peptide binding identical protein binding protein binding protein homodimerization activity protein dimerization activity organic cyclic compound binding tetrapyrrole binding heme binding steroid binding lipid binding cation binding ion binding metal ion binding small molecule binding	positive regulation of protein localization to plasma membrane protein localization regulation of localization cellular localization regulation of cellular process regulation of protein localization positive regulation of biological process localization cellular macromolecule localization regulation of protein localization to membrane positive regulation of cellular process positive regulation of protein localization to cell periphery regulation of biological process protein localization to cell periphery positive regulation of protein localization to plasma membrane protein localization regulation of localization cellular localization regulation of cellular process regulation of protein localization positive regulation of biological process localization cellular macromolecule localization regulation of protein localization to membrane positive regulation of cellular process positive regulation of protein localization to cell periphery regulation of biological process protein localization to cell periphery protein localization to plasma membrane biological regulation positive regulation of protein localization to membrane localization within membrane regulation of protein localization to cell periphery protein localization to membrane regulation of cellular localization macromolecule localization positive regulation of protein localization cellular process regulation of protein localization to plasma membrane regulation of cellular component organization negative regulation of cellular component organization negative regulation of biological process negative regulation of synapse organization cellular component organization regulation of synapse organization cell junction organization negative regulation of cellular process regulation of synapse structure or activity synapse organization cellular component organization or biogenesis regulation of biological quality behavior multicellular organismal process system process learning or memory nervous system process cognition memory establishment of protein localization nitrogen compound transport transport positive regulation of establishment of protein localization positive regulation of protein transport regulation of lipoprotein transport regulation of transport organic substance transport positive regulation of lipoprotein transport regulation of establishment of protein localization regulation of protein transport lipoprotein transport establishment of localization positive regulation of transport protein transport lipoprotein localization axonogenesis cellular developmental process cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation anatomical structure development system development developmental process plasma membrane bounded cell projection organization axon guidance nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron projection guidance neuron development learning associative learning pigment metabolic process heme metabolic process porphyrin-containing compound biosynthetic process organonitrogen compound metabolic process tetrapyrrole metabolic process heme biosynthetic process organonitrogen compound biosynthetic process pigment biosynthetic process organic cyclic compound metabolic process organic substance metabolic process tetrapyrrole biosynthetic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process metabolic process porphyrin-containing compound metabolic process modification of synaptic structure	cellular anatomical entity endomembrane system membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle specific granule membrane intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle cellular anatomical entity endomembrane system membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle specific granule membrane intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle organelle membrane secretory granule membrane specific granule cell periphery plasma membrane cell projection neuron projection plasma membrane bounded cell projection extracellular region smooth endoplasmic reticulum membrane organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum smooth endoplasmic reticulum endoplasmic reticulum membrane synapse cell junction mitochondrial membrane mitochondrion organelle outer membrane organelle envelope mitochondrial envelope mitochondrial outer membrane outer membrane somatodendritic compartment cell body neuronal cell body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036400	Cytochrome b5-like heme/steroid binding domain superfamily	Homologous Superfamily
A, B	IPR001199	Cytochrome b5-like heme/steroid binding domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: O00264	prostate cancer Prostatic Neoplasms Alzheimer disease diabetes mellitus Hodgkins lymphoma interstitial cystitis malignant pancreatic neoplasm ovarian cancer Pick disease ulcerative colitis atypical teratoid rhabdoid tumor Duchenne muscular dystrophy IgA glomerulonephritis invasive ductal breast carcinoma pancreatic ductal adenocarcinoma prostate cancer Prostatic Neoplasms Alzheimer disease diabetes mellitus Hodgkins lymphoma interstitial cystitis malignant pancreatic neoplasm ovarian cancer Pick disease ulcerative colitis atypical teratoid rhabdoid tumor Duchenne muscular dystrophy IgA glomerulonephritis invasive ductal breast carcinoma pancreatic ductal adenocarcinoma exocrine pancreatic carcinoma intellectual disability lung adenocarcinoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm

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.