Protein Name:
Protein IMPACT
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UniprotKB/SwissProt ID: O55091 (O55091)
Gene Name:
Impact
Organism: Mus musculus (Mouse)
Function: Translational regulator that ensures constant high levels of translation upon a variety of stress conditions, such as amino acid starvation, UV-C irradiation, proteasome inhibitor treatment and glucose deprivation. Plays a role as a negative regulator of the EIF2AK4/GCN2 kinase activity; impairs GCN1-mediated EIF2AK4/GCN2 activation, and hence EIF2AK4/GCN2-mediated eIF-2-alpha phosphorylation and subsequent down-regulation of protein synthesis (PubMed:15937339, PubMed:23447528, PubMed:24333428). May be required to regulate translation in specific neuronal cells under amino acid starvation conditions by preventing GCN2 activation and therefore ATF4 synthesis (PubMed:15937339, PubMed:23447528). Through its inhibitory action on EIF2AK4/GCN2, plays a role in differentiation of neuronal cells by stimulating neurite outgrowth (PubMed:23447528)
Other Modifications: View all modification sites in dbPTM
Protein Subcellular Localization: Cytoplasm
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Graphical Visualization of S-nitrosylation Sites:
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The S-nitrosylation sites of O55091
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| No. |
Position |
S-nitrosylated Peptide |
Secondary Structure of S-nitrosylated Peptide |
Solvent Accessibility of nitrosylated Site |
PubMed ID |
| 1 |
38 |
CVIDENAKIF C IRVTDFMDDP |
CCHHHCCCCH H HHHHHHHHHH |
1.9% |
21278135
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