8AV2 | pdb_00008av2

Crystal structure for the FnIII module of mouse LEP-R in complex with the anti-LEP-R nanobody VHH-4.80

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	HTH_7	e8av2D1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: HTH_7	ECOD (develop294)
C	HTH_7	e8av2C1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: HTH_7	ECOD (develop294)
B	HTH_7	e8av2B1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: HTH_7	ECOD (develop294)
A	HTH_7	e8av2A1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: HTH_7	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	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, D	Heavy Chain	IGHV1	-	leptin receptor	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	anti-mLEPR VHH 4-80	-	-	-
A, B	Leptin receptor	molecular transducer activity transmembrane signaling receptor activity signaling receptor activity cytokine receptor activity immune receptor activity protein binding binding cytokine binding leptin receptor activity peptide hormone binding hormone binding protein-hormone receptor activity identical protein binding	cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation response to cytokine cytokine-mediated signaling pathway cell communication response to peptide response to chemical cellular process cellular response to cytokine stimulus signal transduction developmental process multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development blood vessel development system development localization import into cell transport phagocytosis endocytosis establishment of localization vesicle-mediated transport cell surface receptor signaling pathway via STAT sexual reproduction reproductive process behavior eating behavior feeding behavior developmental growth growth animal organ development organ growth skeletal system development bone growth bone development multicellular organismal-level homeostasis homeostatic process energy homeostasis secondary alcohol metabolic process sterol metabolic process steroid metabolic process cholesterol metabolic process alcohol metabolic process small molecule metabolic process metabolic process primary metabolic process lipid metabolic process cellular developmental process hemopoiesis cell activation cell development mononuclear cell differentiation lymphocyte activation lymphocyte differentiation leukocyte activation T cell activation immune system process cell differentiation T cell differentiation leukocyte differentiation cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of biological process positive regulation of cellular process adaptive thermogenesis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis positive regulation of multicellular organismal process regulation of multicellular organismal process positive regulation of cell communication regulation of localization establishment of protein localization nitrogen compound transport positive regulation of establishment of protein localization carbohydrate homeostasis establishment of localization in cell positive regulation of insulin secretion involved in cellular response to glucose stimulus positive regulation of insulin secretion intracellular protein localization regulation of biological quality regulation of peptide hormone secretion regulation of hormone levels positive regulation of peptide hormone secretion establishment of protein localization to extracellular region intracellular glucose homeostasis protein secretion cellular response to oxygen-containing compound regulation of protein secretion regulation of secretion cellular response to carbohydrate stimulus chemical homeostasis response to glucose glucose homeostasis positive regulation of protein localization insulin secretion involved in cellular response to glucose stimulus cellular localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport peptide secretion regulation of secretion by cell secretion by cell positive regulation of hormone secretion response to monosaccharide response to carbohydrate positive regulation of secretion signal release cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus positive regulation of peptide secretion regulation of signaling regulation of transport secretion regulation of peptide transport regulation of establishment of protein localization export from cell cell-cell signaling response to oxygen-containing compound cellular response to glucose stimulus regulation of protein transport positive regulation of protein secretion peptide transport response to hexose cellular response to chemical stimulus cellular homeostasis positive regulation of transport regulation of cellular localization protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization regulation of insulin secretion involved in cellular response to glucose stimulus hormone transport regulation of cell communication insulin secretion positive regulation of signaling positive regulation of signal transduction regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade negative regulation of behavior rhythmic process rhythmic behavior circadian rhythm negative regulation of biological process negative regulation of circadian rhythm regulation of circadian rhythm regulation of behavior circadian behavior locomotory behavior regulation of locomotor rhythm locomotor rhythm negative regulation of multicellular organismal process negative regulation of locomotor rhythm negative regulation of catabolic process catabolic process negative regulation of metabolic process autophagy regulation of catabolic process regulation of autophagy negative regulation of autophagy negative regulation of cellular process process utilizing autophagic mechanism regulation of metabolic process monosaccharide metabolic process negative regulation of small molecule metabolic process gluconeogenesis regulation of primary metabolic process negative regulation of gluconeogenesis regulation of small molecule metabolic process regulation of carbohydrate metabolic process regulation of glucose metabolic process negative regulation of carbohydrate metabolic process regulation of biosynthetic process carbohydrate metabolic process small molecule biosynthetic process carbohydrate biosynthetic process hexose metabolic process monosaccharide biosynthetic process hexose biosynthetic process biosynthetic process negative regulation of biosynthetic process regulation of gluconeogenesis regulation of carbohydrate biosynthetic process glucose metabolic process cellular response to leptin stimulus cellular response to endogenous stimulus response to hormone response to leptin cellular response to hormone stimulus leptin-mediated signaling pathway response to endogenous stimulus regulation of feeding behavior negative regulation of feeding behavior regulation of eating behavior negative regulation of eating behavior tissue remodeling regulation of bone remodeling bone remodeling regulation of tissue remodeling energy derivation by oxidation of organic compounds glycogen metabolic process generation of precursor metabolites and energy glucan metabolic process polysaccharide metabolic process energy reserve metabolic process macromolecule metabolic process nervous system development neurogenesis gliogenesis glial cell proliferation	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane protein-containing complex receptor complex extracellular region cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane protein-containing complex receptor complex extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003531	Short hematopoietin receptor, family 1, conserved site	Conserved Site
A, B	IPR003529	Long hematopoietin receptor, Gp130 family 2, conserved site	Conserved Site
A, B	IPR010457	Immunoglobulin C2-set-like, ligand-binding	Domain
A, B	IPR041182	Leptin receptor, immunoglobulin-like domain	Domain
A, B	IPR003961	Fibronectin type III	Domain
A, B	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B	IPR007110	Immunoglobulin-like domain	Domain
A, B	IPR036116	Fibronectin type III superfamily	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	CSO	Parent Component: CYS RESID: AA0205 PSI-MOD : L-cysteine sulfenic acid MOD:00210

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.

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