Annotations: 7LKH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	V-set	e7lkhL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B [auth H]	V-set_8	e7lkhH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV10	Kappa	sterol regulatory element-binding protein cleavage-activating protein	SAbDab (2026-02-06)
B [auth H]	Heavy Chain	IGHV14	-	sterol regulatory element-binding protein cleavage-activating protein	SAbDab (2026-02-06)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF24006	SCAP N-terminal (SCAP_N)	SCAP N-terminal	This entry represents a domain found at the N-terminal of SCAP (Sterol regulatory element-binding protein cleavage-activating protein). SCAP is a key player in the sterol regulatory element-binding protein (SREBP) pathway that controls the cellular h ...	This entry represents a domain found at the N-terminal of SCAP (Sterol regulatory element-binding protein cleavage-activating protein). SCAP is a key player in the sterol regulatory element-binding protein (SREBP) pathway that controls the cellular homeostasis of sterol [7-10]. It consists of a luminal domain, eight transmembrane segments from which TM2-TM6 corresponds to the SSD (Pfam:PF12349) and a WD40 domain at the C-terminal. This entry represents the luminal domain of SCAP, which binds cholesterol [1-5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	4G10 Fab kappa chain	-	-	-
B [auth H]	4G10 Fab heavy chain	-	-	-
A	Sterol regulatory element-binding protein cleavage-activating protein	sterol binding binding steroid binding lipid binding	regulation of cellular process oxoacid metabolic process ketone metabolic process regulation of lipid metabolic process lipid biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process regulation of primary metabolic process regulation of small molecule metabolic process small molecule metabolic process regulation of biosynthetic process regulation of biological process fatty acid metabolic process regulation of cellular process oxoacid metabolic process ketone metabolic process regulation of lipid metabolic process lipid biosynthetic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process regulation of primary metabolic process regulation of small molecule metabolic process small molecule metabolic process regulation of biosynthetic process regulation of biological process fatty acid metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process biological regulation carboxylic acid metabolic process primary metabolic process fatty acid biosynthetic process regulation of ketone metabolic process biosynthetic process regulation of fatty acid biosynthetic process regulation of fatty acid metabolic process metabolic process cellular process regulation of lipid biosynthetic process monocarboxylic acid metabolic process regulation of metabolic process lipid metabolic process response to stimulus immune response immune system process response to hormone response to chemical response to endogenous stimulus response to peptide hormone response to insulin response to oxygen-containing compound response to nitrogen compound cellular response to stimulus cellular response to sterol depletion signaling response to sterol depletion intracellular signal transduction cell communication SREBP signaling pathway cellular response to stress response to stress ER-nucleus signaling pathway signal transduction response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus regulation of steroid biosynthetic process regulation of cholesterol biosynthetic process regulation of cholesterol metabolic process steroid metabolic process sterol metabolic process positive regulation of biological process cholesterol metabolic process alcohol metabolic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of lipid metabolic process steroid biosynthetic process positive regulation of cellular process secondary alcohol biosynthetic process regulation of alcohol biosynthetic process regulation of steroid metabolic process cholesterol biosynthetic process positive regulation of cholesterol biosynthetic process secondary alcohol metabolic process positive regulation of steroid 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 positive regulation of small molecule metabolic process positive regulation of alcohol biosynthetic process positive regulation of sterol biosynthetic process	protein-containing complex cellular anatomical structure membrane membrane protein complex SREBP-SCAP complex membrane-bounded organelle Golgi membrane intracellular anatomical structure Golgi apparatus intracellular membrane-bounded organelle endomembrane system intracellular organelle bounding membrane of organelle organelle protein-containing complex cellular anatomical structure membrane membrane protein complex SREBP-SCAP complex membrane-bounded organelle Golgi membrane intracellular anatomical structure Golgi apparatus intracellular membrane-bounded organelle endomembrane system intracellular organelle bounding membrane of organelle organelle cytoplasm organelle membrane 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 organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR057041	SCAP, N-terminal	Domain
A	IPR019775	WD40 repeat, conserved site	Conserved Site
A	IPR000731	Sterol-sensing domain	Domain
A	IPR011047	Quinoprotein alcohol dehydrogenase-like superfamily	Homologous Superfamily
A	IPR001680	WD40 repeat	Repeat
A	IPR053958	HMGCR/SNAP/NPC1-like, sterol-sensing domain	Domain
A	IPR057042	SCAP, beta-propeller	Domain
A	IPR030225	Sterol regulatory element-binding protein cleavage-activating protein	Family
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily

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.