7FII | pdb_00007fii

luteinizing hormone/choriogonadotropin receptor-chorionic gonadotropin-Gs complex

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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: 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)
E [auth X]	SCOP2B Superfamily	Cystine-knot cytokines	8038799	3000846	SCOP2B (2022-06-29)
F [auth Y]	SCOP2B Superfamily	Cystine-knot cytokines	8038800	3000846	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	G-alpha	e7fiiA1	A: alpha arrays	X: Transducin (alpha subunit), insertion domain (From Topology)	H: Transducin (alpha subunit), insertion domain (From Topology)	T: Transducin (alpha subunit), insertion domain	F: G-alpha	ECOD (1.6)
A	Ras	e7fiiA2	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)
B	ANAPC4_WD40_3	e7fiiB1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: ANAPC4_WD40_3	ECOD (1.6)
C [auth G]	G-gamma	e7fiiG1	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 R]	LRR_8_1	e7fiiR2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: LRR_8_1	ECOD (1.6)
D [auth R]	7tm_1_3	e7fiiR1	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_3	ECOD (1.6)
E [auth X]	Hormone_6	e7fiiX1	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: Hormone_6	ECOD (1.6)
F [auth Y]	Cys_knot	e7fiiY1	A: few secondary structure elements	X: Cystine-knot cytokines (From Topology)	H: Cystine-knot cytokines (From Topology)	T: Cystine-knot cytokines	F: Cys_knot	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat
D [auth R]	PF13306	BspA type Leucine rich repeat region (6 copies) (LRR_5)	BspA type Leucine rich repeat region (6 copies)	-	Repeat
D [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
F [auth Y]	PF00007	Cystine-knot domain (Cys_knot)	Cystine-knot domain	The family comprises glycoprotein hormones and the C-terminal domain of various extracellular proteins. It is believed to be involved in disulfide-linked dimerisation.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Engineered Guanine nucleotide-binding protein G(s) subunit alpha	-	-	-
B	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding enzyme binding GTPase binding phosphoric ester hydrolase activity alkylglycerophosphoethanolamine phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity catalytic activity pyrophosphatase activity cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding enzyme binding GTPase binding phosphoric ester hydrolase activity alkylglycerophosphoethanolamine phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity catalytic activity pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides signaling receptor complex adaptor activity protein-macromolecule adaptor activity molecular adaptor activity signaling adaptor activity	positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality 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 positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality 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 response to decreased oxygen levels cellular response to stimulus response to stimulus cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus cellular response to stress response to hypoxia response to stress response to chemical response to oxygen levels response to abiotic stimulus cellular process cell population proliferation regulation of biological process regulation of cellular process signaling phospholipase C-activating G protein-coupled receptor signaling pathway cell communication G protein-coupled receptor signaling pathway signal transduction muscle cell apoptotic process striated muscle cell apoptotic process apoptotic process cell death programmed cell death cardiac muscle cell apoptotic process	protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cellular anatomical structure cytoplasmic side of plasma membrane GTPase complex protein-containing complex extrinsic component of plasma membrane catalytic complex plasma membrane protein complex cytoplasmic side of membrane membrane plasma membrane membrane protein complex heterotrimeric G-protein complex side of membrane cell periphery cellular anatomical structure cytoplasmic side of plasma membrane GTPase complex extrinsic component of membrane extrinsic component of cytoplasmic side of plasma membrane photoreceptor inner segment somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm membrane-bounded organelle non-motile cilium 9+0 non-motile cilium cilium photoreceptor outer segment photoreceptor cell cilium organelle ciliary membrane photoreceptor outer segment membrane bounding membrane of organelle plasma membrane region organelle membrane cell projection membrane synapse cell junction cell body
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 R]	Lutropin-choriogonadotropic hormone receptor	choriogonadotropin hormone receptor activity molecular transducer activity protein-hormone receptor activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity choriogonadotropin hormone binding binding hormone binding peptide receptor activity G protein-coupled peptide receptor activity luteinizing hormone receptor activity	developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development system development tube development seminiferous tubule development cellular response to stimulus cellular response to nitrogen compound response to stimulus cellular response to gonadotropin stimulus cellular response to luteinizing hormone stimulus response to endogenous stimulus response to luteinizing hormone response to peptide hormone cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound response to gonadotropin cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular process cellular response to hormone stimulus spermatogenesis sexual reproduction multicellular organismal reproductive process male gamete generation gamete generation regulation of steroid biosynthetic process regulation of cellular process regulation of hormone biosynthetic process regulation of hormone metabolic process regulation of lipid metabolic process steroid metabolic process lipid biosynthetic process regulation of primary metabolic process regulation of biological quality hormone biosynthetic process steroid biosynthetic process regulation of biosynthetic process regulation of steroid hormone biosynthetic process regulation of biological process regulation of hormone levels regulation of steroid metabolic process biological regulation primary metabolic process hormone metabolic process biosynthetic process metabolic process regulation of lipid biosynthetic process regulation of metabolic process lipid metabolic process signaling hormone-mediated signaling pathway cell communication signal transduction system process nervous system process cognition genitalia development male genitalia development G protein-coupled receptor signaling pathway luteinizing hormone signaling pathway adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway uterus development female gonad development female sex differentiation development of primary female sexual characteristics ovarian follicle development phospholipase C-activating G protein-coupled receptor signaling pathway rhythmic process ovulation cycle ovulation cycle process development of secondary male sexual characteristics development of secondary sexual characteristics regulation of inositol phosphate biosynthetic process positive regulation of biological process regulation of inositol trisphosphate biosynthetic process alcohol metabolic process inositol phosphate metabolic process positive regulation of phosphate metabolic process positive regulation of metabolic process positive regulation of inositol trisphosphate biosynthetic process regulation of small molecule metabolic process positive regulation of biosynthetic process phosphate-containing compound metabolic process polyol biosynthetic process inositol trisphosphate metabolic process small molecule metabolic process phosphorus metabolic process regulation of carbohydrate metabolic process positive regulation of cellular process carbohydrate metabolic process polyol metabolic process regulation of alcohol biosynthetic process positive regulation of phosphorus metabolic process small molecule biosynthetic process inositol trisphosphate biosynthetic process carbohydrate biosynthetic process positive regulation of inositol phosphate biosynthetic process organophosphate metabolic process organophosphate biosynthetic process inositol phosphate biosynthetic process alcohol biosynthetic process regulation of phosphorus metabolic process regulation of carbohydrate biosynthetic process positive regulation of carbohydrate metabolic process positive regulation of small molecule metabolic process positive regulation of alcohol biosynthetic process G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger	intracellular anatomical structure intracellular membraneless organelle intracellular organelle centrosome microtubule organizing center cellular anatomical structure cytoskeleton centriolar satellite organelle membraneless organelle microtubule cytoskeleton cell periphery plasma membrane membrane intracellular anatomical structure intracellular membraneless organelle intracellular organelle centrosome microtubule organizing center cellular anatomical structure cytoskeleton centriolar satellite organelle membraneless organelle microtubule cytoskeleton cell periphery plasma membrane membrane membrane-bounded organelle endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system cytoplasmic vesicle cytoplasm vesicle
E [auth X]	Glycoprotein hormones alpha chain	hormone activity protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity follicle-stimulating hormone activity receptor ligand activity signaling receptor activator activity	regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation regulation of cell population proliferation biological regulation positive regulation of biological process cellular process positive regulation of cellular process multicellular organismal process system process gonadotropin secretion transport signaling regulation of biological process cell population proliferation regulation of cellular process positive regulation of cell population proliferation regulation of cell population proliferation biological regulation positive regulation of biological process cellular process positive regulation of cellular process multicellular organismal process system process gonadotropin secretion transport signaling hormone secretion cell communication localization secretion by cell signal release regulation of biological quality secretion regulation of hormone levels follicle-stimulating hormone secretion cell-cell signaling export from cell establishment of localization endocrine hormone secretion endocrine process hormone transport phenol-containing compound metabolic process modified amino acid metabolic process metabolic process hormone metabolic process thyroid hormone generation thyroid hormone metabolic process developmental process developmental growth growth organ growth multicellular organism development thyroid gland development endocrine system development gland development animal organ development anatomical structure development system development 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 cellular response to stimulus response to stimulus response to endogenous stimulus hormone-mediated signaling pathway cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical signal transduction cellular response to hormone stimulus regulation of signaling regulation of signaling receptor activity regulation of signal transduction regulation of molecular function regulation of response to stimulus regulation of cell communication regulation of steroid biosynthetic process steroid metabolic process regulation of lipid metabolic process lipid biosynthetic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of lipid metabolic process steroid biosynthetic process regulation of biosynthetic process regulation of steroid metabolic process primary metabolic process positive regulation of steroid biosynthetic process biosynthetic process positive regulation of lipid biosynthetic process positive regulation of steroid metabolic process regulation of lipid biosynthetic process regulation of metabolic process lipid metabolic process G protein-coupled receptor signaling pathway regulation of growth regulation of developmental growth regulation of developmental process negative regulation of developmental process negative regulation of biological process negative regulation of organ growth negative regulation of developmental growth negative regulation of growth regulation of organ growth regulation of multicellular organismal process negative regulation of multicellular organismal process luteinizing hormone secretion ovulation cycle process reproductive process sex differentiation development of primary female sexual characteristics developmental process involved in reproduction ovulation cycle development of primary sexual characteristics reproductive structure development ovarian follicle development rhythmic process gonad development reproductive system development female gonad development multicellular organismal reproductive process female sex differentiation follicle-stimulating hormone signaling pathway positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription	membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle cellular anatomical structure organelle lumen organelle cytoplasm protein-containing complex membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle cellular anatomical structure organelle lumen organelle cytoplasm protein-containing complex extracellular region pituitary gonadotropin complex extracellular space follicle-stimulating hormone complex
F [auth Y]	Choriogonadotropin subunit beta 3	hormone activity protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	sexual reproduction reproductive process multicellular organismal reproductive process female gamete generation gamete generation cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling response to endogenous stimulus biological regulation hormone-mediated signaling pathway cell communication sexual reproduction reproductive process multicellular organismal reproductive process female gamete generation gamete generation cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling response to endogenous stimulus biological regulation hormone-mediated signaling pathway cell communication cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical cellular process signal transduction cellular response to hormone stimulus apoptotic process cell death programmed cell death G protein-coupled receptor signaling pathway cell-cell signaling	protein-containing complex cellular anatomical structure extracellular region pituitary gonadotropin complex intracellular anatomical structure cytoplasm extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR019775	WD40 repeat, conserved site	Conserved Site
B	IPR020472	PAC1/LIS1-like, WD-40 repeat	Repeat
B	IPR001632	G-protein beta subunit-like, WD40 repeats	Domain
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B	IPR016346	G-protein subunit beta 1-5	Family
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001680	WD40 repeat	Repeat
C [auth G]	IPR015898	G-protein, gamma subunit-like domain	Domain
C [auth G]	IPR036284	G-protein gamma-like domain superfamily	Homologous Superfamily
C [auth G]	IPR001770	G-protein, gamma subunit	Family
D [auth R]	IPR002273	Lutropin-choriogonadotropic hormone receptor	Family
D [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
D [auth R]	IPR002131	Glycoprotein hormone receptor family	Family
D [auth R]	IPR026906	BspA-type LRR region	Repeat
D [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
D [auth R]	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
E [auth X]	IPR000476	Glycoprotein hormone alpha chain	Family
E [auth X]	IPR029034	Cystine-knot cytokine	Homologous Superfamily
F [auth Y]	IPR001545	Gonadotropin, beta subunit	Family
F [auth Y]	IPR006208	Glycoprotein hormone subunit beta	Domain
F [auth Y]	IPR018245	Gonadotropin, beta subunit, conserved site	Conserved Site
F [auth Y]	IPR029034	Cystine-knot cytokine	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
D [auth R]	Pharos: P22888	familial male-limited precocious puberty polycystic ovary syndrome pseudohermaphroditism Leydig cell hypoplasia Leydig cell tumor 46,XY disorder of sex development male infertility true hermaphroditism Familial Testotoxicosis Leydig cell hypoplasia, type 1 sex differentiation disease infertility disorder malignant colon neoplasm psoriasis subependymal giant cell astrocytoma familial male-limited precocious puberty polycystic ovary syndrome pseudohermaphroditism Leydig cell hypoplasia Leydig cell tumor 46,XY disorder of sex development male infertility true hermaphroditism Familial Testotoxicosis Leydig cell hypoplasia, type 1 sex differentiation disease infertility disorder malignant colon neoplasm psoriasis subependymal giant cell astrocytoma 46,XY sex reversal 3 ductal breast carcinoma in situ
E [auth X]	Pharos: P01215	oligospermia ovarian disease uterine disease hemiplegia atrial fibrillation ovarian cancer psoriasis thyroid cancer, nonmedullary, 2 adrenal gland disease Disease Exacerbation lung cancer spina bifida lung carcinoma osteosarcoma pituitary cancer oligospermia ovarian disease uterine disease hemiplegia atrial fibrillation ovarian cancer psoriasis thyroid cancer, nonmedullary, 2 adrenal gland disease Disease Exacerbation lung cancer spina bifida lung carcinoma osteosarcoma pituitary cancer interstitial lung disease
F [auth Y]	Pharos: P0DN86	Fetal Resorption hypogonadism hypogonadotropic hypogonadism psoriasis

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
C [auth G], D [auth R], E [auth X], F [auth Y]	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
C [auth G], D [auth R], E [auth X], F [auth Y]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
C [auth G], D [auth R], E [auth X], F [auth Y]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	luteinizing hormone/choriogonadotropin receptor (LHCGR)