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UniProtKB - A4D1Q0 (A4D1Q0_HUMAN)

Entry version 135 (02 Jun 2021)
Sequence version 1 (03 Apr 2007)
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Protein

Muscarinic acetylcholine receptor

Gene

CHRM2

Organism
Homo sapiens (Human)
Status
Unreviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins.

UniRule annotation

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.UniRule annotation

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionG-protein coupled receptorUniRule annotationARBA annotation, Receptor, Transducer

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Muscarinic acetylcholine receptorUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:CHRM2Imported
ORF Names:hCG_1641225Imported, tcag7.414Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

Organism-specific databases

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000181072.11

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei23 – 48HelicalUniRule annotationAdd BLAST26
Transmembranei60 – 86HelicalUniRule annotationAdd BLAST27
Transmembranei98 – 119HelicalUniRule annotationAdd BLAST22
Transmembranei140 – 165HelicalUniRule annotationAdd BLAST26
Transmembranei185 – 209HelicalUniRule annotationAdd BLAST25
Transmembranei385 – 403HelicalUniRule annotationAdd BLAST19

Keywords - Cellular componenti

Cell junction, Cell membraneUniRule annotationARBA annotation, Membrane, Postsynaptic cell membraneUniRule annotation, Synapse

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Organism-specific databases

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA111

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000181072, Expressed in heart and 82 other tissues

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini40 – 440G_PROTEIN_RECEP_F1_2InterPro annotationAdd BLAST401

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni218 – 355DisorderedSequence analysisAdd BLAST138

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi230 – 256Polar residuesSequence analysisAdd BLAST27
Compositional biasi280 – 297Polar residuesSequence analysisAdd BLAST18
Compositional biasi305 – 355Polar residuesSequence analysisAdd BLAST51

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the G-protein coupled receptor 1 family.UniRule annotation
Belongs to the G-protein coupled receptor 1 family. Muscarinic acetylcholine receptor subfamily.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helixUniRule annotationARBA annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_009579_11_2_1

Identification of Orthologs from Complete Genome Data

More...OMAi		NSKLTCI

Database of Orthologous Groups

More...OrthoDBi		1245472at2759

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR000276, GPCR_Rhodpsn
IPR017452, GPCR_Rhodpsn_7TM
IPR001065, Musac_Ach_M2_rcpt
IPR000995, Musac_Ach_rcpt

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00001, 7tm_1, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00237, GPCRRHODOPSN
PR00243, MUSCARINICR
PR00539, MUSCRINICM2R

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM01381, 7TM_GPCR_Srsx, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00237, G_PROTEIN_RECEP_F1_1, 1 hit
PS50262, G_PROTEIN_RECEP_F1_2, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

A4D1Q0-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNNSTNSSNN SLALTSPYKT FEVVFIVLVA GSLSLVTIIG NILVMVSIKV 
        60         70         80         90        100
NRHLQTVNNY FLFSLACADL IIGVFSMNLY TLYTVIGYWP LGPVVCDLWL 
       110        120        130        140        150
ALDYVVSNAS VMNLLIISFD RYFCVTKPLT YPVKRTTKMA GMMIAAAWVL 
       160        170        180        190        200
SFILWAPAIL FWQFIVGVRT VEDGECYIQF FSNAAVTFGT AIAAFYLPVI 
       210        220        230        240        250
IMTVLYWHIS RASKSRIKKD KKEPVANQDP VSPSLVQGRI VKPNNNNMPS 
       260        270        280        290        300
SDDGLEHNKI QNGKAPRDPV TENCVQGEEK ESSNDSTSVS AVASNMRDDE 
       310        320        330        340        350
ITQDENTVST SLGHSKDENS KQTCIRIGTK TPKSDSCTPT NTTVEVVGSS 
       360        370        380        390        400
GQNGDEKQNI VARKIVKMTK QPAKKKPPPS REKKVTRTIL AILLAFIITW 
       410        420        430        440        450
APYNVMVLIN TFCAPCIPNT VWTIGYWLCY INSTINPACY ALCNATFKKT 
       460 
FKHLLMCHYK NIGATR
Length:466
Mass (Da):51,715
Last modified:April 3, 2007 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i2FC2FD7748C22BEC
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AK290236 mRNA Translation: BAF82925.1
CH236950 Genomic DNA Translation: EAL24054.1
CH471070 Genomic DNA Translation: EAW83866.1

NCBI Reference Sequences

More...RefSeqi		NP_000730.1, NM_000739.2
NP_001006627.1, NM_001006626.1
NP_001006628.1, NM_001006627.1
NP_001006629.1, NM_001006628.1
NP_001006630.1, NM_001006629.1
NP_001006631.1, NM_001006630.1
NP_001006632.1, NM_001006631.1
NP_001006633.1, NM_001006632.1
XP_011514071.1, XM_011515769.2

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		1129

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:1129

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK290236 mRNA Translation: BAF82925.1
CH236950 Genomic DNA Translation: EAL24054.1
CH471070 Genomic DNA Translation: EAW83866.1
RefSeqiNP_000730.1, NM_000739.2
NP_001006627.1, NM_001006626.1
NP_001006628.1, NM_001006627.1
NP_001006629.1, NM_001006628.1
NP_001006630.1, NM_001006629.1
NP_001006631.1, NM_001006630.1
NP_001006632.1, NM_001006631.1
NP_001006633.1, NM_001006632.1
XP_011514071.1, XM_011515769.2

3D structure databases

Database of comparative protein structure models

More...ModBasei		Search...

SWISS-MODEL Interactive Workspace

More...SWISS-MODEL-Workspacei		Submit a new modelling project...

Protein family/group databases

Information system for G protein-coupled receptors (GPCRs)

More...GPCRDBi		Search...

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		18171, 566 antibodies

The DNASU plasmid repository

More...DNASUi		1129

Genome annotation databases

GeneIDi1129
KEGGihsa:1129

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		1129
PharmGKBiPA111
VEuPathDBiHostDB:ENSG00000181072.11

Phylogenomic databases

HOGENOMiCLU_009579_11_2_1
OMAiNSKLTCI
OrthoDBi1245472at2759

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		1129, 6 hits in 983 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		CHRM2, human

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		1129

Gene expression databases

BgeeiENSG00000181072, Expressed in heart and 82 other tissues

Family and domain databases

InterProiView protein in InterPro
IPR000276, GPCR_Rhodpsn
IPR017452, GPCR_Rhodpsn_7TM
IPR001065, Musac_Ach_M2_rcpt
IPR000995, Musac_Ach_rcpt
PfamiView protein in Pfam
PF00001, 7tm_1, 1 hit
PRINTSiPR00237, GPCRRHODOPSN
PR00243, MUSCARINICR
PR00539, MUSCRINICM2R
SMARTiView protein in SMART
SM01381, 7TM_GPCR_Srsx, 1 hit
PROSITEiView protein in PROSITE
PS00237, G_PROTEIN_RECEP_F1_1, 1 hit
PS50262, G_PROTEIN_RECEP_F1_2, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiA4D1Q0_HUMAN
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: A4D1Q0
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: April 3, 2007
Last sequence update: April 3, 2007
Last modified: June 2, 2021
This is version 135 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiUnreviewed (UniProtKB/TrEMBL)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.
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