Gene Ontology Classifications

Symbol
Name
ID

Chrnb4
cholinergic receptor, nicotinic, beta polypeptide 4
MGI:87892

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Automated description from the Alliance of Genome Resources (Release 7.4.0)

Enables transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential. Involved in positive regulation of transmission of nerve impulse. Acts upstream of or within several processes, including behavioral response to nicotine; neuronal action potential; and synaptic transmission involved in micturition. Is active in cholinergic synapse and postsynaptic specialization membrane. Is expressed in several structures, including alimentary system; eye; genitourinary system; nervous system; and thymus. Human ortholog(s) of this gene implicated in cocaine abuse; lung cancer (multiple); nicotine dependence; and oral cavity cancer. Orthologous to human CHRNB4 (cholinergic receptor nicotinic beta 4 subunit).

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Aspect

Category

Evidence

Gene Ontology Evidence Code Abbreviations:

Experimental:

EXP: Inferred from experiment
HMP: Inferred from high throughput mutant phenotype
HGI: Inferred from high throughput genetic interaction
HDA: Inferred from high throughput direct assay
HEP: Inferred from high throughput expression pattern
IDA: Inferred from direct assay
IEP: Inferred from expression pattern
IGI: Inferred from genetic interaction
IMP: Inferred from mutant phenotype
IPI: Inferred from physical interaction

Homology:

IAS: Inferred from ancestral sequence
IBA: Inferred from biological aspect of ancestor
IBD: Inferred from biological aspect of descendant
IKR: Inferred from key residues
IMR: Inferred from missing residues
IRD: Inferred from rapid divergence
ISA: Inferred from sequence alignment
ISM: Inferred from sequence model
ISO: Inferred from sequence orthology
ISS: Inferred from sequence or structural similarity

Automated:

IEA: Inferred from electronic annotation
RCA: Reviewed computational analysis

Other:

IC: Inferred by curator
NAS: Non-traceable author statement
ND: No biological data available
TAS: Traceable author statement

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Contributing Projects: Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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