9UCP | pdb_00009ucp

cryo-EM structure of M1 muscarinic acetylcholine receptor-alpha5 helix of G11 protein complex bound to iperoxo and nanobody Nb1B4

External Resource: Annotation

SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C	Heavy Chain	IGHV1	-	m1 muscarinic acetylcholine receptor, de novo designprotein	SAbDab (2025-12-26)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	M1 muscarinic acetylcholine receptor, de novo design protein	-	-	-
B	Guanine nucleotide-binding protein subunit alpha-11	enzyme regulator activity molecular function regulator activity 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 enzyme regulator activity molecular function regulator activity 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 pyrophosphatase activity GTPase activity G protein 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 protein binding signaling receptor binding G protein-coupled receptor binding cation binding metal ion binding	developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation developmental process heart development multicellular organism development multicellular organismal process anatomical structure development animal organ development circulatory system development system development system process circulatory system process regulation of blood pressure biological regulation regulation of biological quality blood circulation rhythmic process regulation of biological process entrainment of circadian clock response to stimulus circadian rhythm response to external stimulus regulation of circadian rhythm cellular response to stimulus cellular response to nitrogen compound regulation of cellular process signaling cell communication phospholipase C-activating G protein-coupled receptor signaling pathway synaptic signaling phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway signal transduction cellular response to acetylcholine response to oxygen-containing compound cell-cell signaling response to nitrogen compound acetylcholine receptor signaling pathway postsynaptic signal transduction cellular response to oxygen-containing compound cellular response to chemical stimulus G protein-coupled acetylcholine receptor signaling pathway response to chemical response to acetylcholine G protein-coupled receptor signaling pathway cellular process skeletal system development cranial skeletal system development action potential regulation of membrane potential pigment cell differentiation cellular developmental process regulation of developmental process developmental pigmentation regulation of pigment cell differentiation regulation of cell differentiation pigmentation cell differentiation melanocyte differentiation regulation of melanocyte differentiation adenylate cyclase-modulating G protein-coupled receptor signaling pathway response to pH cellular response to pH response to abiotic stimulus cellular response to abiotic stimulus cellular response to environmental stimulus endothelin receptor signaling pathway detection of light stimulus response to light stimulus phototransduction detection of external stimulus detection of visible light detection of abiotic stimulus detection of stimulus response to radiation phototransduction, visible light positive regulation of cell communication regulation of localization establishment of protein localization nitrogen compound transport positive regulation of establishment of protein localization localization positive regulation of insulin secretion intracellular protein localization regulation of peptide hormone secretion regulation of hormone levels positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion establishment of localization regulation of protein secretion regulation of secretion positive regulation of protein localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion transport positive regulation of biological process 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 positive regulation of secretion amide transport signal release positive regulation of cellular process 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 regulation of protein transport positive regulation of protein secretion peptide transport positive regulation of transport protein transport regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport regulation of cell communication insulin secretion positive regulation of signaling ligand-gated ion channel signaling pathway phospholipase C-activating dopamine receptor signaling pathway response to dopamine cellular response to dopamine response to monoamine response to catecholamine cellular response to catecholamine stimulus G protein-coupled dopamine receptor signaling pathway cellular response to monoamine stimulus	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 extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm non-motile cilium 9+0 non-motile cilium cilium neuron projection photoreceptor outer segment plasma membrane bounded cell projection cell projection photoreceptor cell cilium vacuolar membrane lytic vacuole vacuole intracellular membrane-bounded organelle intracellular organelle lytic vacuole membrane bounding membrane of organelle lysosomal membrane organelle membrane lysosome synapse cell junction
C	Nanobody Nb1B4	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR001019	Guanine nucleotide binding protein (G-protein), alpha subunit	Family
B	IPR000654	G-protein alpha subunit, group Q	Family
B	IPR011025	G protein alpha subunit, helical insertion	Homologous Superfamily
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: P29992	melanoma uveal melanoma familial hypocalciuric hypercalcemia 2 autosomal dominant hypocalcemia 2 autosomal dominant hypocalcemia cutaneous melanoma phakomatosis cesiomarmorata spina bifida astrocytic tumor autosomal dominant hypocalcemia 1 Congenital Heart Defects malignant colon neoplasm ovarian cancer primitive neuroectodermal tumor subependymal giant cell astrocytoma melanoma uveal melanoma familial hypocalciuric hypercalcemia 2 autosomal dominant hypocalcemia 2 autosomal dominant hypocalcemia cutaneous melanoma phakomatosis cesiomarmorata spina bifida astrocytic tumor autosomal dominant hypocalcemia 1 Congenital Heart Defects malignant colon neoplasm ovarian cancer primitive neuroectodermal tumor subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor congenital heart disease large cell medulloblastoma malignant glioma ocular melanoma phakomatosis cesioflammea psoriasis ulcerative colitis Bartter syndrome with hypocalcemia malignant choroid melanoma osteosarcoma

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.