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- Table of Contents
Facts about Guanine nucleotide-binding protein G(i) subunit alpha-1.
Signaling by an activated GPCR boosts GDP release and GTP binding. The alpha subunit has a low GTPase activity that converts bound GTP to GDP, thereby terminating the sign.
Human | |
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Gene Name: | GNAI1 |
Uniprot: | P63096 |
Entrez: | 2770 |
Belongs to: |
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G-alpha family |
Adenylate cyclase-inhibiting G alpha protein; Gi; Gi1 protein alpha subunit; guanine nucleotide binding protein (G protein), alpha inhibiting activitypolypeptide 1; guanine nucleotide-binding protein G(i) subunit alpha-1
Mass (kDA):
40.361 kDA
Human | |
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Location: | 7q21.11 |
Sequence: | 7; NC_000007.14 (80134831..80226181) |
Nucleus. Cytoplasm. Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cell cortex. Membrane; Lipid-anchor. Localizes in the centrosomes of interphase and mitotic cells, but not in centrosomes during cytokinesis. Detected at the cleavage furrow or the midbody (PubMed:17635935). Localized at the plasma membrane throughout mitosis. Colocalizes with RIC8A and RGS14 at the plasma membrane.
PMID: 2834384 by Itoh H., et al. Presence of three distinct molecular species of Gi protein alpha subunit. Structure of rat cDNAs and human genomic DNAs.
PMID: 3110783 by Bray P., et al. Human cDNA clones for an alpha subunit of Gi signal-transduction protein.