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CHRNA1
HPA
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  • CHRNA1
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

CHRNA1
Synonyms CHRNA
Gene descriptioni

Full gene name according to HGNC.

Cholinergic receptor nicotinic alpha 1 subunit
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Human disease related genes
Transporters
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 2
Cytoband q31.1
Chromosome location (bp) 174747592 - 174787935
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

7
Ensembl ENSG00000138435 (version 109)
Entrez gene 1134
HGNC HGNC:1955
UniProt P02708 (UniProt - Evidence at protein level)
neXtProt NX_P02708
GeneCards CHRNA1
Antibodypedia CHRNA1 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

[Isoform 1]: Upon acetylcholine binding, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Ion channel, Ligand-gated ion channel, Receptor
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Ion transport, Transport
Gene summary (Entrez)i

Useful information about the gene from Entrez

The muscle acetylcholine receptor consiststs of 5 subunits of 4 different types: 2 alpha subunits and 1 each of the beta, gamma, and delta subunits. This gene encodes an alpha subunit that plays a role in acetlycholine binding/channel gating. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Nov 2012]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
CHRNA1-201
ENSP00000261007
ENST00000261007
P02708
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Transporters
   Transporter channels and pores
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Disease related genes
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
   DeepTMHMM predicted membrane proteins
Show all
GO:0003009 [skeletal muscle contraction]
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005231 [excitatory extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0005892 [acetylcholine-gated channel complex]
GO:0006811 [ion transport]
GO:0007165 [signal transduction]
GO:0007268 [chemical synaptic transmission]
GO:0007271 [synaptic transmission, cholinergic]
GO:0007274 [neuromuscular synaptic transmission]
GO:0007528 [neuromuscular junction development]
GO:0009986 [cell surface]
GO:0015464 [acetylcholine receptor activity]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0019228 [neuronal action potential]
GO:0022848 [acetylcholine-gated cation-selective channel activity]
GO:0030594 [neurotransmitter receptor activity]
GO:0031594 [neuromuscular junction]
GO:0034220 [ion transmembrane transport]
GO:0042166 [acetylcholine binding]
GO:0042391 [regulation of membrane potential]
GO:0043005 [neuron projection]
GO:0045202 [synapse]
GO:0045211 [postsynaptic membrane]
GO:0046716 [muscle cell cellular homeostasis]
GO:0048630 [skeletal muscle tissue growth]
GO:0050877 [nervous system process]
GO:0050881 [musculoskeletal movement]
GO:0050905 [neuromuscular process]
GO:0060078 [regulation of postsynaptic membrane potential]
GO:0060079 [excitatory postsynaptic potential]
GO:0070050 [neuron cellular homeostasis]
GO:0110165 [cellular anatomical entity]
GO:1904315 [transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential]
Show all
482 aa
54.5 kDa
Yes 4
CHRNA1-202
ENSP00000261008
ENST00000348749
P02708
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Q53SH4
[Target identity:100%; Query identity:100%] Cholinergic receptor, nicotinic, alpha 1 (Muscle), isoform CRA_a; Uncharacterized protein CHRNA1; cDNA FLJ77888, highly similar to Human muscle acetylcholine receptor alpha-subunit; cDNA, FLJ96344, Homo sapiens cholinergic receptor, nicotinic, alpha polypeptide 1(muscle) (CHRNA1), mRNA
Show all
Transporters
   Transporter channels and pores
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Disease related genes
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
   DeepTMHMM predicted membrane proteins
Show all
GO:0003009 [skeletal muscle contraction]
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005231 [excitatory extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0005892 [acetylcholine-gated channel complex]
GO:0006811 [ion transport]
GO:0006812 [cation transport]
GO:0007165 [signal transduction]
GO:0007268 [chemical synaptic transmission]
GO:0007271 [synaptic transmission, cholinergic]
GO:0007274 [neuromuscular synaptic transmission]
GO:0007528 [neuromuscular junction development]
GO:0009986 [cell surface]
GO:0015464 [acetylcholine receptor activity]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0019228 [neuronal action potential]
GO:0022848 [acetylcholine-gated cation-selective channel activity]
GO:0030594 [neurotransmitter receptor activity]
GO:0031594 [neuromuscular junction]
GO:0034220 [ion transmembrane transport]
GO:0042166 [acetylcholine binding]
GO:0042391 [regulation of membrane potential]
GO:0043005 [neuron projection]
GO:0045202 [synapse]
GO:0045211 [postsynaptic membrane]
GO:0046716 [muscle cell cellular homeostasis]
GO:0048630 [skeletal muscle tissue growth]
GO:0050877 [nervous system process]
GO:0050881 [musculoskeletal movement]
GO:0050905 [neuromuscular process]
GO:0060078 [regulation of postsynaptic membrane potential]
GO:0060079 [excitatory postsynaptic potential]
GO:0070050 [neuron cellular homeostasis]
GO:0097060 [synaptic membrane]
GO:0099634 [postsynaptic specialization membrane]
GO:0110165 [cellular anatomical entity]
GO:1904315 [transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential]
Show all
457 aa
51.8 kDa
Yes 4
CHRNA1-203
ENSP00000386611
ENST00000409219
E7ENE5
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0022848 [acetylcholine-gated cation-selective channel activity]
GO:0034220 [ion transmembrane transport]
GO:0045202 [synapse]
GO:0045211 [postsynaptic membrane]
GO:0060078 [regulation of postsynaptic membrane potential]
GO:0060079 [excitatory postsynaptic potential]
GO:0097060 [synaptic membrane]
GO:0110165 [cellular anatomical entity]
Show all
377 aa
42.8 kDa
Yes 4
CHRNA1-204
ENSP00000386684
ENST00000409323
G5E9G9
[Direct mapping] Acetylcholine receptor subunit alpha; Cholinergic receptor, nicotinic, alpha 1 (Muscle), isoform CRA_c
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   1TM proteins predicted by MDM
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0022848 [acetylcholine-gated cation-selective channel activity]
GO:0034220 [ion transmembrane transport]
GO:0045202 [synapse]
GO:0045211 [postsynaptic membrane]
GO:0060078 [regulation of postsynaptic membrane potential]
GO:0060079 [excitatory postsynaptic potential]
GO:0097060 [synaptic membrane]
Show all
269 aa
30.8 kDa
Yes 1
CHRNA1-205
ENSP00000387026
ENST00000409542
B8ZZD3
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0034220 [ion transmembrane transport]
Show all
375 aa
42.2 kDa
Yes 4
CHRNA1-208
ENSP00000490338
ENST00000636168
A0A1B0GV17
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0034220 [ion transmembrane transport]
Show all
294 aa
33.1 kDa
No 4
CHRNA1-209
ENSP00000500507
ENST00000672640
A0A1B0GV17
[Direct mapping] Acetylcholine receptor subunit alpha
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   4TM proteins predicted by MDM
Human disease related genes
   Congenital malformations
   Other congenital malformations
   Nervous system diseases
   Other nervous and sensory system diseases
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0005886 [plasma membrane]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0034220 [ion transmembrane transport]
Show all
294 aa
33.1 kDa
No 4

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