Annotations: 6M49

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EUF08258	e6m49A1	A: alpha complex topology	X: Insulin-induced gene (Insig) homologs (From Topology)	H: Insulin-induced gene (Insig) homologs (From Topology)	T: Insulin-induced gene (Insig) homologs	F: EUF08258	ECOD (1.6)
B	Sterol-sensing	e6m49B1	A: alpha bundles	X: Multidrug efflux transporter AcrB transmembrane domain (From Topology)	H: Multidrug efflux transporter AcrB transmembrane domain (From Topology)	T: Multidrug efflux transporter AcrB transmembrane domain	F: Sterol-sensing	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07281	Insulin-induced protein (INSIG) (INSIG)	Insulin-induced protein (INSIG)	-	Family
B	PF12349	Sterol-sensing domain of SREBP cleavage-activation (Sterol-sensing)	Sterol-sensing domain of SREBP cleavage-activation	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Insulin-induced gene 2 protein	sterol binding oxysterol binding binding steroid binding lipid binding molecular sequestering activity protein sequestering activity	developmental process ear morphogenesis embryonic organ morphogenesis middle ear morphogenesis multicellular organismal process ear development sensory organ development embryonic morphogenesis animal organ development embryo development multicellular organism development anatomical structure morphogenesis sensory organ morphogenesis anatomical structure development developmental process ear morphogenesis embryonic organ morphogenesis middle ear morphogenesis multicellular organismal process ear development sensory organ development embryonic morphogenesis animal organ development embryo development multicellular organism development anatomical structure morphogenesis sensory organ morphogenesis anatomical structure development animal organ morphogenesis embryonic organ development cranial suture morphogenesis craniofacial suture morphogenesis skeletal system development cranial skeletal system development skeletal system morphogenesis bone morphogenesis bone development system development cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus cellular response to sterol depletion signaling biological regulation response to sterol depletion intracellular signal transduction cell communication SREBP signaling pathway cellular response to stress response to stress ER-nucleus signaling pathway cellular process signal transduction inner ear development inner ear morphogenesis neutral lipid metabolic process triglyceride metabolic process primary metabolic process metabolic process glycerolipid metabolic process acylglycerol metabolic process lipid metabolic process cellular response to nitrogen compound response to endogenous stimulus response to peptide hormone response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical response to insulin cellular response to insulin stimulus cellular response to hormone stimulus negative regulation of small molecule metabolic process oxoacid metabolic process ketone metabolic process regulation of lipid metabolic process negative regulation of biological process lipid biosynthetic process organic acid metabolic process organic acid biosynthetic process negative regulation of lipid biosynthetic process carboxylic acid biosynthetic process regulation of primary metabolic process regulation of small molecule metabolic process negative regulation of cellular process small molecule metabolic process negative regulation of fatty acid biosynthetic process regulation of biosynthetic process fatty acid metabolic process negative regulation of fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process negative regulation of metabolic process carboxylic acid metabolic process fatty acid biosynthetic process regulation of ketone metabolic process biosynthetic process negative regulation of biosynthetic process regulation of fatty acid metabolic process regulation of fatty acid biosynthetic process regulation of lipid biosynthetic process monocarboxylic acid metabolic process regulation of metabolic process negative regulation of lipid metabolic process roof of mouth development secondary alcohol biosynthetic process cholesterol biosynthetic process sterol metabolic process steroid metabolic process cholesterol metabolic process alcohol metabolic process secondary alcohol metabolic process sterol biosynthetic process alcohol biosynthetic process steroid biosynthetic process protein localization regulation of cellular response to stress regulation of signal transduction localization maintenance of protein localization in endoplasmic reticulum cellular macromolecule localization cellular response to sterol protein localization to endoplasmic reticulum regulation of SREBP signaling pathway maintenance of location regulation of response to stimulus cellular response to lipid maintenance of protein location cellular localization response to lipid negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of cell communication maintenance of location in cell negative regulation of SREBP signaling pathway regulation of intracellular signal transduction regulation of response to stress maintenance of protein location in cell regulation of signaling response to sterol negative regulation of response to stimulus negative regulation of signal transduction macromolecule localization protein localization to organelle SREBP-SCAP complex retention in endoplasmic reticulum regulation of cell communication maintenance of protein localization in organelle regulation of steroid biosynthetic process negative regulation of steroid metabolic process regulation of steroid metabolic process negative regulation of steroid biosynthetic process	membrane-bounded organelle protein-containing complex intracellular anatomical structure organelle subcompartment membrane membrane protein complex intracellular membrane-bounded organelle SREBP-SCAP-Insig complex endomembrane system endoplasmic reticulum subcompartment intracellular organelle cellular anatomical structure organelle nuclear outer membrane-endoplasmic reticulum membrane network membrane-bounded organelle protein-containing complex intracellular anatomical structure organelle subcompartment membrane membrane protein complex intracellular membrane-bounded organelle SREBP-SCAP-Insig complex 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 protein-containing complex endoplasmic reticulum membrane
B	Sterol regulatory element-binding protein cleavage-activating protein,Sterol regulatory element-binding protein cleavage-activating protein	sterol binding binding steroid binding lipid binding unfolded protein binding protein binding protein-containing complex binding	response to stimulus immune response immune system process cellular response to stimulus regulation of biological process regulation of cellular process cellular response to sterol depletion signaling biological regulation response to sterol depletion intracellular signal transduction cell communication SREBP signaling pathway cellular response to stress response to stimulus immune response immune system process cellular response to stimulus regulation of biological process regulation of cellular process cellular response to sterol depletion signaling biological regulation response to sterol depletion intracellular signal transduction cell communication SREBP signaling pathway cellular response to stress response to stress ER-nucleus signaling pathway cellular process signal transduction regulation of steroid biosynthetic process regulation of cholesterol biosynthetic process regulation of cholesterol metabolic process steroid metabolic process regulation of lipid metabolic process sterol metabolic process positive regulation of biological process cholesterol metabolic process lipid biosynthetic process alcohol metabolic process regulation of primary metabolic process positive regulation of metabolic process regulation of small molecule metabolic process positive regulation of biosynthetic process positive regulation of lipid metabolic process small molecule metabolic process steroid biosynthetic process positive regulation of cellular process regulation of biosynthetic process secondary alcohol biosynthetic process regulation of alcohol biosynthetic process small molecule biosynthetic process regulation of steroid metabolic process cholesterol biosynthetic process positive regulation of cholesterol biosynthetic process primary metabolic process secondary alcohol metabolic process positive regulation of steroid biosynthetic process biosynthetic process sterol biosynthetic process positive regulation of lipid biosynthetic process regulation of sterol biosynthetic process alcohol biosynthetic process positive regulation of cholesterol metabolic process positive regulation of steroid metabolic process metabolic process regulation of lipid biosynthetic process positive regulation of small molecule metabolic process regulation of metabolic process positive regulation of alcohol biosynthetic process positive regulation of sterol biosynthetic process lipid metabolic process negative regulation of small molecule metabolic process negative regulation of cholesterol metabolic process negative regulation of biological process negative regulation of lipid biosynthetic process negative regulation of cellular process negative regulation of steroid metabolic process negative regulation of metabolic process negative regulation of sterol biosynthetic process negative regulation of biosynthetic process negative regulation of steroid biosynthetic process negative regulation of alcohol biosynthetic process negative regulation of cholesterol biosynthetic process negative regulation of lipid metabolic process response to nutrient levels response to chemical response to nutrient response to vitamin B3 response to vitamin oxoacid metabolic process ketone metabolic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process fatty acid metabolic process monocarboxylic acid biosynthetic process carboxylic acid metabolic process fatty acid biosynthetic process regulation of ketone metabolic process regulation of fatty acid biosynthetic process regulation of fatty acid metabolic process monocarboxylic acid metabolic process response to hormone response to endogenous stimulus response to peptide hormone response to insulin response to oxygen-containing compound response to nitrogen compound response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus membrane organization vesicle budding from membrane cellular localization transport intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport vesicle cargo loading establishment of localization vesicle-mediated transport cellular component organization vesicle organization localization organelle organization COPII-coated vesicle cargo loading establishment of localization in cell cellular component organization or biogenesis COPII-coated vesicle budding Golgi vesicle transport	cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane protein-containing complex membrane protein complex SREBP-SCAP complex Golgi apparatus Golgi membrane bounding membrane of organelle transport vesicle intracellular vesicle transport vesicle membrane cytoplasmic vesicle membrane coated vesicle membrane COPII-coated ER to Golgi transport vesicle vesicle membrane cytoplasmic vesicle ER to Golgi transport vesicle membrane coated vesicle vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR025929	Insulin-induced protein family	Family
B	IPR019775	WD40 repeat, conserved site	Conserved Site
B	IPR000731	Sterol-sensing domain	Domain
B	IPR053958	HMGCR/SNAP/NPC1-like, sterol-sensing domain	Domain
B	IPR030225	Sterol regulatory element-binding protein cleavage-activating protein	Family
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001680	WD40 repeat	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9Y5U4	Liver Cirrhosis, Experimental large cell medulloblastoma psoriasis tuberculosis ovarian cancer
B	Pharos: Q12770	hepatocellular carcinoma psoriasis Liver carcinoma ovarian cancer

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM				Insig-related proteins

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Insulin-Induced Gene Products: Insig Proteins	Scap/Insig complex in the presence of 25-hydroxyl cholesterol

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.