Aliases for EIF2AK3 Gene
External Ids for EIF2AK3 Gene
Previous GeneCards Identifiers for EIF2AK3 Gene
The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2, leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. This protein is thought to modulate mitochondrial function. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER stress caused by malfolded proteins. Mutations in this gene are associated with Wolcott-Rallison syndrome. [provided by RefSeq, Sep 2015]
GeneCards Summary for EIF2AK3 Gene
EIF2AK3 (Eukaryotic Translation Initiation Factor 2 Alpha Kinase 3) is a Protein Coding gene. Diseases associated with EIF2AK3 include Epiphyseal Dysplasia, Multiple, With Early-Onset Diabetes Mellitus and Diversion Colitis. Among its related pathways are Mitophagy - animal and Regulation of lipid metabolism Insulin signaling-generic cascades. Gene Ontology (GO) annotations related to this gene include protein homodimerization activity and transferase activity, transferring phosphorus-containing groups. An important paralog of this gene is EIF2AK4.
UniProtKB/Swiss-Prot for EIF2AK3 Gene
Metabolic-stress sensing protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (eIF-2-alpha/EIF2S1) on Ser-52 during the unfolded protein response (UPR) and in response to low amino acid availability. Converts phosphorylated eIF-2-alpha/EIF2S1 either in a global protein synthesis inhibitor, leading to a reduced overall utilization of amino acids, or to a translation initiation activator of specific mRNAs, such as the transcriptional activator ATF4, and hence allowing ATF4-mediated reprogramming of amino acid biosynthetic gene expression to alleviate nutrient depletion. Serves as a critical effector of unfolded protein response (UPR)-induced G1 growth arrest due to the loss of cyclin-D1 (CCND1). Involved in control of mitochondrial morphology and function.
PKR-like ER kinase (PERK, EIF2AK3) is an elF2alpha kinase that inhibits protein translation. PERK is a type one endoplasmic reticulum (ER) membrane protein which is involved in both the integrated stress response (ISR) and unfolded protein response (UPR).