7YJ4

Cryo-EM structure of the INSL5-bound human relaxin family peptidereceptor 4 (RXFP4)-Gi complex

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth G]	SCOP2B Superfamily	Transducin (heterotrimeric G protein), gamma chain	8070796	3001771	SCOP2B (2022-06-29)
G [auth T]	SCOP2B Superfamily	WD40 repeat-like	8042849	3001694	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)
C [auth G]	G-gamma	e7yj4G1	A: extended segments	X: Transducin (heterotrimeric G protein), gamma chain (From Topology)	H: Transducin (heterotrimeric G protein), gamma chain (From Topology)	T: Transducin (heterotrimeric G protein), gamma chain	F: G-gamma	ECOD (1.6)
D [auth I]	Ras	e7yj4I1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Ras	ECOD (1.6)
E [auth R]	7tm_1_1	e7yj4R1	A: alpha bundles	X: Family A G protein-coupled receptor-like (From Topology)	H: Family A G protein-coupled receptor-like (From Topology)	T: Family A G protein-coupled receptor-like	F: 7tm_1_1	ECOD (1.6)
F [auth S]	V-set	e7yj4S1	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)
F [auth S]	V-set_12	e7yj4S2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
G [auth T]	ANAPC4_WD40_3	e7yj4T1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: ANAPC4_WD40_3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F [auth S]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
G [auth T]	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D [auth I]	PF00503	G-protein alpha subunit (G-alpha)	G-protein alpha subunit	G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like ...	G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like family form a ring of residues centered on the nucleotide binding site [3]. A Ggamma is found fused to an inactive Galpha in the Dictyostelium protein gbqA [3].	Domain
E [auth R]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ...	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins [1].	Domain
G [auth T]	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Insulin-like peptide INSL5 A chain	protein binding binding signaling receptor binding G protein-coupled receptor binding hormone activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	positive regulation of feeding behavior multicellular organismal process regulation of biological process biological regulation positive regulation of biological process feeding behavior regulation of behavior behavior positive regulation of behavior positive regulation of multicellular organismal process regulation of multicellular organismal process regulation of feeding behavior	cellular anatomical structure extracellular region
B	Insulin-like peptide INSL5 B chain	protein binding binding signaling receptor binding G protein-coupled receptor binding hormone activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	positive regulation of feeding behavior multicellular organismal process regulation of biological process biological regulation positive regulation of biological process feeding behavior regulation of behavior behavior positive regulation of behavior positive regulation of multicellular organismal process regulation of multicellular organismal process regulation of feeding behavior	cellular anatomical structure extracellular region
C [auth G]	Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	protein binding binding G-protein beta-subunit binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	cellular response to nitrogen compound cellular response to stimulus response to dopamine regulation of cellular process response to stimulus signaling cellular response to dopamine response to monoamine cell communication response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus signal transduction regulation of biological process cellular response to nitrogen compound cellular response to stimulus response to dopamine regulation of cellular process response to stimulus signaling cellular response to dopamine response to monoamine cell communication response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus signal transduction regulation of biological process G protein-coupled dopamine receptor signaling pathway biological regulation response to oxygen-containing compound response to nitrogen compound adenylate cyclase-activating G protein-coupled receptor signaling pathway cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to monoamine stimulus response to chemical adenylate cyclase-modulating G protein-coupled receptor signaling pathway cellular process G protein-coupled receptor signaling pathway response to ketone response to prostaglandin response to lipid response to endogenous stimulus response to alcohol cellular response to prostaglandin stimulus cellular response to endogenous stimulus cellular response to prostaglandin E stimulus cellular response to alcohol response to hormone cellular response to lipid response to prostaglandin E cellular response to ketone cellular response to hormone stimulus	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane protein complex heterotrimeric G-protein complex side of membrane cytoplasmic side of plasma membrane GTPase complex cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane protein complex heterotrimeric G-protein complex side of membrane cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane
D [auth I]	Guanine nucleotide-binding protein G(i) subunit alpha-2	binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding protein-containing complex binding G-protein beta/gamma-subunit complex binding protein binding signaling receptor binding G protein-coupled receptor binding cation binding metal ion binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity	regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation biological regulation positive regulation of biological process positive regulation of neural precursor cell proliferation regulation of cell population proliferation cellular process neural precursor cell proliferation positive regulation of cellular process regulation of neural precursor cell proliferation reactive oxygen species metabolic process regulation of superoxide metabolic process regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation biological regulation positive regulation of biological process positive regulation of neural precursor cell proliferation regulation of cell population proliferation cellular process neural precursor cell proliferation positive regulation of cellular process regulation of neural precursor cell proliferation reactive oxygen species metabolic process regulation of superoxide metabolic process positive regulation of reactive oxygen species metabolic process superoxide metabolic process positive regulation of metabolic process superoxide anion generation metabolic process positive regulation of superoxide anion generation regulation of superoxide anion generation regulation of metabolic process regulation of reactive oxygen species metabolic process regulation of calcium ion transport regulation of localization transport regulation of transport regulation of monoatomic ion transport establishment of localization metal ion transport calcium ion transport localization monoatomic ion transport regulation of metal ion transport monoatomic cation transport cellular response to stimulus positive regulation of cell communication positive regulation of signal transduction response to stimulus signaling regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling negative regulation of signaling negative regulation of biological process negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway adrenergic receptor signaling pathway negative regulation of cellular process regulation of G protein-coupled receptor signaling pathway adenylate cyclase-activating adrenergic receptor signaling pathway negative regulation of response to stimulus adenylate cyclase-activating G protein-coupled receptor signaling pathway negative regulation of signal transduction negative regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway cell division regulation of body fluid levels multicellular organismal process renal system process system process positive regulation of urine volume regulation of urine volume regulation of biological quality regulation of vascular associated smooth muscle cell proliferation positive regulation of vascular associated smooth muscle cell proliferation regulation of smooth muscle cell proliferation smooth muscle cell proliferation positive regulation of smooth muscle cell proliferation muscle cell proliferation vascular associated smooth muscle cell proliferation cell-cell signaling gamma-aminobutyric acid signaling pathway purinergic nucleotide receptor signaling pathway cell surface receptor signaling pathway G protein-coupled purinergic receptor signaling pathway G protein-coupled adenosine receptor signaling pathway regulation of molecular function negative regulation of lyase activity regulation of adenylate cyclase activity regulation of catalytic activity negative regulation of molecular function negative regulation of catalytic activity negative regulation of adenylate cyclase activity regulated exocytosis regulation of calcium ion-dependent exocytosis negative regulation of transport negative regulation of regulated secretory pathway vesicle-mediated transport regulation of regulated secretory pathway secretion by cell regulation of secretion by cell negative regulation of secretion negative regulation of exocytosis negative regulation of secretion by cell calcium-ion regulated exocytosis secretion negative regulation of calcium ion-dependent exocytosis export from cell regulation of vesicle-mediated transport regulation of secretion exocytosis regulation of exocytosis regulation of programmed cell death negative regulation of apoptotic signaling pathway negative regulation of programmed cell death regulation of apoptotic process cell death apoptotic signaling pathway negative regulation of apoptotic process apoptotic process programmed cell death regulation of apoptotic signaling pathway cellular response to nitrogen compound response to peptide hormone insulin receptor signaling pathway regulation of cellular response to insulin stimulus cell surface receptor protein tyrosine kinase signaling pathway cellular response to endogenous stimulus response to hormone enzyme-linked receptor protein signaling pathway cellular response to hormone stimulus positive regulation of cellular response to insulin stimulus response to endogenous stimulus regulation of insulin receptor signaling pathway positive regulation of insulin receptor signaling pathway response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical response to insulin cellular response to insulin stimulus positive regulation of locomotion regulation of cell motility positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration cell migration cell motility locomotion adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway trans-synaptic signaling modulation of chemical synaptic transmission negative regulation of synaptic transmission chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling cellular response to acetylcholine acetylcholine receptor signaling pathway postsynaptic signal transduction G protein-coupled acetylcholine receptor signaling pathway response to acetylcholine response to nutrient levels response to nutrient	midbody cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle midbody cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle neuronal dense core vesicle protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space extracellular membrane-bounded organelle centrosome microtubule organizing center cytoskeleton membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytosol somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen neuron to neuron synapse synapse cell junction hippocampal mossy fiber to CA3 synapse cell body
E [auth R]	Relaxin-3 receptor 2	peptide receptor activity molecular transducer activity G protein-coupled receptor activity G protein-coupled peptide receptor activity signaling receptor activity transmembrane signaling receptor activity	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication G protein-coupled receptor signaling pathway cellular process signal transduction neuropeptide signaling pathway positive regulation of feeding behavior multicellular organismal process positive regulation of biological process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication G protein-coupled receptor signaling pathway cellular process signal transduction neuropeptide signaling pathway positive regulation of feeding behavior multicellular organismal process positive regulation of biological process feeding behavior regulation of behavior behavior positive regulation of behavior positive regulation of multicellular organismal process regulation of multicellular organismal process regulation of feeding behavior	cell periphery cellular anatomical structure plasma membrane membrane
F [auth S]	scFv16	-	-	-
G [auth T]	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	protein-containing complex binding binding protein binding enzyme binding GTPase binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity signaling receptor complex adaptor activity protein-macromolecule adaptor activity protein-containing complex binding binding protein binding enzyme binding GTPase binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity signaling receptor complex adaptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling adaptor activity	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation phospholipase C-activating G protein-coupled receptor signaling pathway cell communication G protein-coupled receptor signaling pathway cellular process signal transduction multicellular organismal process system process sensory perception of chemical stimulus cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation phospholipase C-activating G protein-coupled receptor signaling pathway cell communication G protein-coupled receptor signaling pathway cellular process signal transduction multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste developmental process sensory organ development eye development animal organ development retina development in camera-type eye visual system development multicellular organism development camera-type eye development anatomical structure development sensory system development system development cell population proliferation cellular response to nitrogen compound response to dopamine cellular response to dopamine response to monoamine response to catecholamine adenylate cyclase-activating dopamine receptor signaling pathway cellular response to catecholamine stimulus G protein-coupled dopamine receptor signaling pathway response to oxygen-containing compound response to nitrogen compound adenylate cyclase-activating G protein-coupled receptor signaling pathway cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to monoamine stimulus response to chemical adenylate cyclase-modulating G protein-coupled receptor signaling pathway response to ketone response to prostaglandin response to lipid response to endogenous stimulus response to alcohol cellular response to prostaglandin stimulus cellular response to endogenous stimulus cellular response to prostaglandin E stimulus cellular response to alcohol response to hormone cellular response to lipid response to prostaglandin E cellular response to ketone cellular response to hormone stimulus	cellular anatomical structure membrane protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cytoplasmic side of plasma membrane GTPase complex cellular anatomical structure membrane protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor disc membrane photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium organelle organelle membrane synapse cell junction intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR051777	Insulin-like_neuropeptide_ligands	Family
A	IPR022353	Insulin, conserved site	Conserved Site
A	IPR036438	Insulin-like superfamily	Homologous Superfamily
A	IPR016179	Insulin-like	Domain
B	IPR051777	Insulin-like_neuropeptide_ligands	Family
B	IPR022353	Insulin, conserved site	Conserved Site
B	IPR036438	Insulin-like superfamily	Homologous Superfamily
B	IPR016179	Insulin-like	Domain
C [auth G]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
C [auth G]	IPR015898	G-protein gamma-like domain	Domain
C [auth G]	IPR001770	G-protein, gamma subunit	Family
D [auth I]	IPR001019	Guanine nucleotide binding protein (G-protein), alpha subunit	Family
D [auth I]	IPR011025	G protein alpha subunit, helical insertion	Homologous Superfamily
D [auth I]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth I]	IPR001408	G-protein alpha subunit, group I	Family
E [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
E [auth R]	IPR050119	C-C chemokine receptor type 1-9-like	Family
E [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
E [auth R]	IPR000248	Angiotensin II receptor family	Family
G [auth T]	IPR019775	WD40 repeat, conserved site	Conserved Site
G [auth T]	IPR016346	Guanine nucleotide-binding protein, beta subunit	Family
G [auth T]	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
G [auth T]	IPR001632	G-protein, beta subunit	Domain
G [auth T]	IPR001680	WD40 repeat	Repeat
G [auth T]	IPR020472	G-protein beta WD-40 repeat	Repeat
G [auth T]	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9Y5Q6	endogenous depression
B	Pharos: Q9Y5Q6	endogenous depression
D [auth I]	Pharos: P04899	Neoplasm Recurrence, Local sarcomatoid carcinoma carcinoma ventricular tachycardia, familial atrioventricular block breast carcinoma mammary neoplasms, animal undifferentiated carcinoma ACTH-dependent Cushing syndrome malignant ependymoma ovarian granulosa cell tumor breast cancer glioblastoma rheumatoid arthritis ulcerative colitis Neoplasm Recurrence, Local sarcomatoid carcinoma carcinoma ventricular tachycardia, familial atrioventricular block breast carcinoma mammary neoplasms, animal undifferentiated carcinoma ACTH-dependent Cushing syndrome malignant ependymoma ovarian granulosa cell tumor breast cancer glioblastoma rheumatoid arthritis ulcerative colitis attention deficit hyperactivity disorder, inattentive type Cushing disease due to pituitary adenoma
E [auth R]	Pharos: Q8TDU9	Crohn disease inflammatory bowel disease

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C [auth G], D [auth I], E [auth R]	OPM	Transmembrane	Alpha-helical polytopic	Rhodopsin-like receptors and pumps	G-protein coupled receptors, family A

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C [auth G], D [auth I], E [auth R]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C [auth G], D [auth I], E [auth R]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C [auth G], D [auth I], E [auth R]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	Relaxin family peptide receptor 4 (RXFP4) - G_i complex with bound insulin-like peptide INSL5