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CHRNA4
HPA
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  • CHRNA4
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.

CHRNA4
Synonyms BFNC, EBN, EBN1
Gene descriptioni

Full gene name according to HGNC.

Cholinergic receptor nicotinic alpha 4 subunit
Protein classi

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

Disease related genes
FDA approved drug targets
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, Intracellular
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 20
Cytoband q13.33
Chromosome location (bp) 63343223 - 63378401
Number of transcriptsi

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

2
Ensembl ENSG00000101204 (version 109)
Entrez gene 1137
HGNC HGNC:1958
UniProt P43681 (UniProt - Evidence at protein level)
neXtProt NX_P43681
GeneCards CHRNA4
Antibodypedia CHRNA4 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

After binding acetylcholine, 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 permeable to sodium ions.... 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

This gene encodes a nicotinic acetylcholine receptor, which belongs to a superfamily of ligand-gated ion channels that play a role in fast signal transmission at synapses. These pentameric receptors can bind acetylcholine, which causes an extensive change in conformation that leads to the opening of an ion-conducting channel across the plasma membrane. This protein is an integral membrane receptor subunit that can interact with either nAChR beta-2 or nAChR beta-4 to form a functional receptor. Mutations in this gene cause nocturnal frontal lobe epilepsy type 1. Polymorphisms in this gene that provide protection against nicotine addiction have been described. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 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)
CHRNA4-201
ENSP00000359285
ENST00000370263
P43681
[Direct mapping] Neuronal acetylcholine receptor subunit alpha-4
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
FDA approved drug targets
   Small molecule drugs
Human disease related genes
   Nervous system diseases
   Epilepsy
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0001508 [action potential]
GO:0001666 [response to hypoxia]
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:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0005892 [acetylcholine-gated channel complex]
GO:0006281 [DNA repair]
GO:0006811 [ion transport]
GO:0006816 [calcium ion transport]
GO:0006979 [response to oxidative stress]
GO:0007165 [signal transduction]
GO:0007268 [chemical synaptic transmission]
GO:0007271 [synaptic transmission, cholinergic]
GO:0009897 [external side of plasma membrane]
GO:0014059 [regulation of dopamine secretion]
GO:0015276 [ligand-gated ion channel activity]
GO:0015464 [acetylcholine receptor activity]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0019233 [sensory perception of pain]
GO:0022848 [acetylcholine-gated cation-selective channel activity]
GO:0030425 [dendrite]
GO:0030594 [neurotransmitter receptor activity]
GO:0034220 [ion transmembrane transport]
GO:0035094 [response to nicotine]
GO:0035095 [behavioral response to nicotine]
GO:0042113 [B cell activation]
GO:0042166 [acetylcholine binding]
GO:0042391 [regulation of membrane potential]
GO:0043005 [neuron projection]
GO:0043025 [neuronal cell body]
GO:0045202 [synapse]
GO:0045211 [postsynaptic membrane]
GO:0050877 [nervous system process]
GO:0050890 [cognition]
GO:0051899 [membrane depolarization]
GO:0060079 [excitatory postsynaptic potential]
GO:0060080 [inhibitory postsynaptic potential]
GO:0110165 [cellular anatomical entity]
GO:1904315 [transmitter-gated ion channel activity involved in regulation of postsynaptic membrane potential]
Show all
627 aa
70 kDa
Yes 4
CHRNA4-220
ENSP00000502096
ENST00000675470
A0A6Q8PG41
[Direct mapping] Neuronal acetylcholine receptor subunit alpha-4
Show all
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   DeepTMHMM predicted secreted proteins
   DeepSig predicted secreted proteins
Predicted intracellular proteins
Human disease related genes
   Nervous system diseases
   Epilepsy
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005216 [ion channel activity]
GO:0005230 [extracellular ligand-gated ion channel activity]
GO:0006811 [ion transport]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0034220 [ion transmembrane transport]
Show all
91 aa
10.1 kDa
Yes 0

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