Annotations: 4YEB

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Olfactomedin-like	8052986	3002154	SCOP2B (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	PF02191	e4yebA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: PF02191	ECOD (1.6)
B	PF13855	e4yebB1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF13855	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.80.10.10	Alpha Beta	Alpha-Beta Horseshoe	Leucine-rich repeat, LRR (right-handed beta-alpha superhelix)	Ribonuclease Inhibitor	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02191	Olfactomedin-like domain (OLF)	Olfactomedin-like domain	-	Repeat
B	PF13855	Leucine rich repeat (LRR_8)	Leucine rich repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Latrophilin-3	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity carbohydrate binding	cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules positive regulation of nervous system development multicellular organismal process positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization regulation of developmental process positive regulation of biological process regulation of nervous system development positive regulation of developmental process cellular component organization cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules positive regulation of nervous system development multicellular organismal process positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization regulation of developmental process positive regulation of biological process regulation of nervous system development positive regulation of developmental process cellular component organization cellular component biogenesis multicellular organism development cellular component assembly cell junction assembly anatomical structure development regulation of multicellular organismal process regulation of synapse structure or activity synapse organization cellular component organization or biogenesis regulation of synapse assembly regulation of biological quality positive regulation of cellular process system development developmental process regulation of multicellular organismal development regulation of biological process positive regulation of cellular component biogenesis biological regulation nervous system development regulation of cellular component biogenesis regulation of cell junction assembly positive regulation of cell junction assembly regulation of synapse organization cell junction organization positive regulation of multicellular organismal process synapse assembly positive regulation of synapse assembly cellular response to stimulus response to stimulus signaling adenylate cyclase-activating G protein-coupled receptor signaling pathway cell communication adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway signal transduction cell surface receptor signaling pathway behavior locomotory behavior locomotion involved in locomotory behavior locomotion neuron migration cellular developmental process generation of neurons neurogenesis cell differentiation cell migration cell motility response to organic substance response to organonitrogen compound response to chemical response to oxygen-containing compound response to nitrogen compound response to organic cyclic compound response to cocaine response to alkaloid maintenance of synapse structure postsynapse organization cellular component maintenance cell junction maintenance organelle organization maintenance of postsynaptic specialization structure postsynaptic density organization postsynaptic specialization organization	cell periphery postsynapse postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region cellular anatomical entity synaptic membrane cell-cell junction anchoring junction glutamatergic synapse Schaffer collateral - CA1 synapse cell periphery postsynapse postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region cellular anatomical entity synaptic membrane cell-cell junction anchoring junction glutamatergic synapse Schaffer collateral - CA1 synapse axon cell projection neuron projection plasma membrane bounded cell projection
B	Fibronectin leucine rich transmembrane protein 3	protein binding binding signaling receptor binding fibroblast growth factor receptor binding growth factor receptor binding identical protein binding protein homodimerization activity protein dimerization activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity chemorepellent activity receptor ligand activity signaling receptor activator activity	cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules response to stimulus response to stress response to wounding response to axon injury developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development cell adhesion cell-cell adhesion cellular process cell-cell adhesion via plasma-membrane adhesion molecules response to stimulus response to stress response to wounding response to axon injury developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development positive regulation of nervous system development positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization regulation of developmental process positive regulation of biological process regulation of nervous system development positive regulation of developmental process cellular component organization cellular component biogenesis cellular component assembly cell junction assembly regulation of multicellular organismal process regulation of synapse structure or activity synapse organization cellular component organization or biogenesis regulation of synapse assembly regulation of biological quality positive regulation of cellular process regulation of multicellular organismal development regulation of biological process positive regulation of cellular component biogenesis biological regulation nervous system development regulation of cellular component biogenesis regulation of cell junction assembly positive regulation of cell junction assembly regulation of synapse organization cell junction organization positive regulation of multicellular organismal process synapse assembly positive regulation of synapse assembly head development synaptic membrane adhesion cellular developmental process developmental growth cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell growth cell morphogenesis neurogenesis cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation neuron projection extension plasma membrane bounded cell projection organization developmental cell growth growth developmental growth involved in morphogenesis generation of neurons anatomical structure morphogenesis neuron development embryonic morphogenesis embryo development response to fibroblast growth factor cellular response to stimulus cellular response to growth factor stimulus cell surface receptor signaling pathway signaling response to endogenous stimulus cell surface receptor protein tyrosine kinase signaling pathway cell communication cellular response to endogenous stimulus fibroblast growth factor receptor signaling pathway response to growth factor signal transduction cellular response to fibroblast growth factor stimulus enzyme-linked receptor protein signaling pathway axonogenesis axon guidance axon development cell morphogenesis involved in neuron differentiation neuron projection guidance cell migration pericardium development cell motility proepicardium cell migration involved in pericardium morphogenesis pericardium morphogenesis epithelium development morphogenesis of an epithelium cell migration involved in heart development tissue development morphogenesis of an epithelial sheet tissue morphogenesis	anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction cell periphery postsynapse postsynaptic membrane synapse membrane plasma membrane plasma membrane region synaptic membrane growth cone anchoring junction cell junction cellular anatomical entity focal adhesion cell-substrate junction cell periphery postsynapse postsynaptic membrane synapse membrane plasma membrane plasma membrane region synaptic membrane growth cone axon cell projection distal axon neuron projection axonal growth cone plasma membrane bounded cell projection site of polarized growth cell-cell junction intracellular anatomical structure cytoplasm cytosol glutamatergic synapse membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane growth cone membrane postsynaptic density neuron to neuron synapse postsynaptic specialization asymmetric synapse extracellular region extracellular space axon terminus presynapse neuron projection terminus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR017983	GPCR, family 2, secretin-like, conserved site	Conserved Site
A	IPR032471	GAIN domain, N-terminal	Domain
A	IPR036445	GPCR family 2, extracellular hormone receptor domain superfamily	Homologous Superfamily
A	IPR000832	GPCR, family 2, secretin-like	Family
A	IPR043159	D-galactoside/L-rhamnose binding SUEL lectin domain superfamily	Homologous Superfamily
A	IPR000203	GPS motif	Conserved Site
A	IPR003112	Olfactomedin-like domain	Domain
A	IPR017981	GPCR, family 2-like, 7TM	Domain
A	IPR003924	GPCR, family 2, latrophilin	Family
A	IPR001879	GPCR, family 2, extracellular hormone receptor domain	Domain
A	IPR003334	GPCR, family 2, latrophilin, C-terminal	Domain
A	IPR000922	D-galactoside/L-rhamnose binding SUEL lectin domain	Domain
A	IPR046338	GAIN domain superfamily	Homologous Superfamily
B	IPR000372	Leucine-rich repeat N-terminal domain	Domain
B	IPR003591	Leucine-rich repeat, typical subtype	Repeat
B	IPR003961	Fibronectin type III	Domain
B	IPR001611	Leucine-rich repeat	Repeat
B	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
B	IPR000483	Cysteine-rich flanking region, C-terminal	Domain

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 R01GM133198.