Annotations: 8EUS

Crystal structure of NPC1 luminal domain C

External Resource: Annotation

Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth A]	CPSase_L_D2	e8eusA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: CPSase_L_D2	ECOD (v295.2)
A [auth C]	CPSase_L_D2	e8eusC1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: CPSase_L_D2	ECOD (v295.2)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C], B [auth A]	NPC intracellular cholesterol transporter 1	molecular transducer activity signaling receptor activity sterol binding binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding sterol transfer activity lipid carrier activity lipid transfer activity transporter activity cholesterol transfer activity molecular transducer activity signaling receptor activity sterol binding binding alcohol binding steroid binding lipid binding cholesterol binding small molecule binding sterol transfer activity lipid carrier activity lipid transfer activity transporter activity cholesterol transfer activity molecular carrier activity transmembrane signaling receptor activity	cellular localization intracellular lipid transport transport lipid localization lipid transport intracellular transport establishment of localization localization macromolecule localization establishment of localization in cell cellular process bile acid metabolic process oxoacid metabolic process steroid metabolic process cellular localization intracellular lipid transport transport lipid localization lipid transport intracellular transport establishment of localization localization macromolecule localization establishment of localization in cell cellular process bile acid metabolic process oxoacid metabolic process steroid metabolic process carboxylic acid metabolic process primary metabolic process metabolic process small molecule metabolic process monocarboxylic acid metabolic process lipid metabolic process membrane organization cellular component organization membrane raft organization cellular component organization or biogenesis biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction catabolic process autophagy process utilizing autophagic mechanism cholesterol transport sterol transport organic hydroxy compound transport intracellular cholesterol transport lysosomal transport intracellular sterol transport vesicle-mediated transport lysosome to ER cholesterol transport vacuolar transport sterol homeostasis chemical homeostasis homeostatic process cholesterol homeostasis lipid homeostasis carbohydrate derivative biosynthetic process glycoprotein biosynthetic process carbohydrate derivative metabolic process glycoprotein metabolic process macromolecule biosynthetic process biosynthetic process protein metabolic process macromolecule metabolic process gene expression intestinal lipid absorption multicellular organismal process digestion system process intestinal absorption digestive system process intestinal cholesterol absorption lipid digestion cholesterol efflux cellular response to stimulus regulation of cellular process response to stimulus signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction intracellular signal transduction negative regulation of cell communication cell communication negative regulation of TORC1 signaling regulation of intracellular signal transduction negative regulation of TOR signaling negative regulation of cellular process signal transduction regulation of TORC1 signaling TOR signaling regulation of biological process regulation of signaling regulation of TOR signaling negative regulation of response to stimulus biological regulation negative regulation of signal transduction regulation of response to stimulus regulation of cell communication TORC1 signaling establishment of protein localization establishment of protein localization to membrane localization within membrane response to metal ion response to chemical response to cadmium ion regulation of epithelial cell apoptotic process negative regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death epithelial cell apoptotic process negative regulation of apoptotic process negative regulation of epithelial cell apoptotic process apoptotic process programmed cell death	vacuolar membrane membrane-bounded organelle cytoplasmic side of lysosomal membrane intracellular anatomical structure cytoplasmic side of membrane membrane lytic vacuole vacuole intracellular membrane-bounded organelle side of membrane intracellular organelle lytic vacuole membrane cellular anatomical structure bounding membrane of organelle vacuolar membrane membrane-bounded organelle cytoplasmic side of lysosomal membrane intracellular anatomical structure cytoplasmic side of membrane membrane lytic vacuole vacuole intracellular membrane-bounded organelle side of membrane intracellular organelle lytic vacuole membrane cellular anatomical structure bounding membrane of organelle organelle lysosomal membrane cytoplasm organelle membrane lysosome organelle envelope nuclear envelope nucleus endomembrane system extracellular exosome extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle cell periphery plasma membrane membrane microdomain membrane raft endosome membrane endosome intracellular vesicle late endosome membrane cytoplasmic vesicle membrane cytoplasmic vesicle vesicle membrane late endosome Golgi apparatus perinuclear region of cytoplasm endoplasmic reticulum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C], B [auth A]	IPR053956	NPC1, middle luminal domain	Domain
A [auth C], B [auth A]	IPR032190	Niemann-Pick C1, N-terminal	Domain
A [auth C], B [auth A]	IPR000731	Sterol-sensing-like domain	Domain
A [auth C], B [auth A]	IPR004765	NPC1-like	Family
A [auth C], B [auth A]	IPR053958	HMGCR/SNAP/NPC1-like, sterol-sensing domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth C], B [auth A]	: O15118	Niemann-Pick disease ophthalmoplegia Niemann-Pick disease, type C1 obesity disorder gastrointestinal stromal tumor Ataxia atherosclerosis cirrhosis of liver liver disease brucellosis osteosarcoma sphingolipidosis histiocytosis inborn errors of metabolism large cell medulloblastoma Niemann-Pick disease ophthalmoplegia Niemann-Pick disease, type C1 obesity disorder gastrointestinal stromal tumor Ataxia atherosclerosis cirrhosis of liver liver disease brucellosis osteosarcoma sphingolipidosis histiocytosis inborn errors of metabolism large cell medulloblastoma lysosomal storage disease metabolic syndrome X ovarian cancer Gaucher disease hydrops fetalis adrenal cortex carcinoma intellectual disability leukodystrophy lung cancer malignant pancreatic neoplasm C syndrome non-Langerhans cell histiocytosis psoriasis tuberculosis heart disease arteriosclerosis disorder lung carcinoma medulloblastoma Niemann-Pick disease type C cholestasis Down syndrome

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth C], B [auth A]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Sterol-Sensing Domain (SSD) Proteins	Niemann-Pick C1 protein (NPC1), luminal domain C

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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.