InnateDB: Systems Biology of the Innate Immune Response

Homo sapiens Protein: GNAT2

Summary

InnateDB Protein

IDBP-100854.4

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

GNAT2

Protein Name

guanine nucleotide binding protein (G protein), alpha transducing activity polypeptide 2

Synonyms

ACHM4; GNATC;

Species

Homo sapiens

Ensembl Protein

ENSP00000251337

InnateDB Gene

IDBG-100852 (GNAT2)

Protein Structure

UniProt Annotation

Function

Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. Transducin is an amplifier and one of the transducers of a visual impulse that performs the coupling between rhodopsin and cGMP-phosphodiesterase.

Subcellular Localization

Disease Associations

Achromatopsia 4 (ACHM4) [MIM:613856]: An ocular stationary disorder due to the absence of functioning cone photoreceptors in the retina. It is characterized by total colorblindness, low visual acuity, photophobia and nystagmus. Note=The disease is caused by mutations affecting the gene represented in this entry.

Tissue Specificity

Retinal rod outer segment.

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 6 experimentally validated interaction(s) in this database.

Experimentally validated
Total	6 [view]
Protein-Protein	6 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Gene Ontology

Molecular Function

Accession	GO Term
GO:0001664	G-protein coupled receptor binding
GO:0003924	GTPase activity
GO:0004871	signal transducer activity
GO:0005525	GTP binding
GO:0008020	G-protein coupled photoreceptor activity
GO:0019001	guanyl nucleotide binding
GO:0031683	G-protein beta/gamma-subunit complex binding
GO:0046872	metal ion binding

Biological Process

GO:0001580	detection of chemical stimulus involved in sensory perception of bitter taste
GO:0006184	GTP catabolic process
GO:0007165	signal transduction
GO:0007186	G-protein coupled receptor signaling pathway
GO:0007188	adenylate cyclase-modulating G-protein coupled receptor signaling pathway
GO:0007204	positive regulation of cytosolic calcium ion concentration
GO:0007601	visual perception
GO:0007602	phototransduction
GO:0009642	response to light intensity
GO:0046549	retinal cone cell development
GO:0050908	detection of light stimulus involved in visual perception

Cellular Component

GO:0001750	photoreceptor outer segment
GO:0001917	photoreceptor inner segment
GO:0005834	heterotrimeric G-protein complex
GO:0005886	plasma membrane
GO:0042622	photoreceptor outer segment membrane

Protein Structure and Domains

PDB ID

InterPro

IPR001019 Guanine nucleotide binding protein (G-protein), alpha subunit
IPR001408 G-protein alpha subunit, group I
IPR006689 Small GTPase superfamily, ARF/SAR type
IPR011025 G protein alpha subunit, helical insertion
IPR027417 P-loop containing nucleoside triphosphate hydrolase

PFAM

PF00503
PF00025

PRINTS

PR00318
PR00441
PR00328

PIRSF

SMART

SM00275

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt