General Information of the Protein
| Protein ID |
PT02815
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| Protein Name |
Eukaryotic translation initiation factor 2-alpha kinase 3
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| Secondarily Protein Name |
PRKR-like endoplasmic reticulum kinase
Pancreatic eIF2-alpha kinase
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| Gene Name |
EIF2AK3
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| Secondarily Gene Name |
PEK
PERK
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| Sequence |
MERAISPGLLVRALLLLLLLLGLAARTVAAGRARGLPAPTAEAAFGLGAAAAPTSATRVPAAGAVAAAEVTVEDAEALPAAAGEQEPRGPEPDDETELRPRGRSLVIISTLDGRIAALDPENHGKKQWDLDVGSGSLVSSSLSKPEVFGNKMIIPSLDGALFQWDQDRESMETVPFTVESLLESSYKFGDDVVLVGGKSLTTYGLSAYSGKVRYICSALGCRQWDSDEMEQEEDILLLQRTQKTVRAVGPRSGNEKWNFSVGHFELRYIPDMETRAGFIESTFKPNENTEESKIISDVEEQEAAIMDIVIKVSVADWKVMAFSKKGGHLEWEYQFCTPIASAWLLKDGKVIPISLFDDTSYTSNDDVLEDEEDIVEAARGATENSVYLGMYRGQLYLQSSVRISEKFPSSPKALESVTNENAIIPLPTIKWKPLIHSPSRTPVLVGSDEFDKCLSNDKFSHEEYSNGALSILQYPYDNGYYLPYYKRERNKRSTQITVRFLDNPHYNKNIRKKDPVLLLHWWKEIVATILFCIIATTFIVRRLFHPHPHRQRKESETQCQTENKYDSVSGEANDSSWNDIKNSGYISRYLTDFEPIQCLGRGGFGVVFEAKNKVDDCNYAIKRIRLPNRELAREKVMREVKALAKLEHPGIVRYFNAWLEAPPEKWQEKMDEIWLKDESTDWPLSSPSPMDAPSVKIRRMDPFATKEHIEIIAPSPQRSRSFSVGISCDQTSSSESQFSPLEFSGMDHEDISESVDAAYNLQDSCLTDCDVEDGTMDGNDEGHSFELCPSEASPYVRSRERTSSSIVFEDSGCDNASSKEEPKTNRLHIGNHCANKLTAFKPTSSKSSSEATLSISPPRPTTLSLDLTKNTTEKLQPSSPKVYLYIQMQLCRKENLKDWMNGRCTIEERERSVCLHIFLQIAEAVEFLHSKGLMHRDLKPSNIFFTMDDVVKVGDFGLVTAMDQDEEEQTVLTPMPAYARHTGQVGTKLYMSPEQIHGNSYSHKVDIFSLGLILFELLYPFSTQMERVRTLTDVRNLKFPPLFTQKYPCEYVMVQDMLSPSPMERPEAINIIENAVFEDLDFPGKTVLRQRSRSLSSSGTKHSRQSNNSHSPLPSN
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| Organism |
Homo sapiens, Human
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| Protein Classification |
Enzyme
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Kinase
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Protein Kinase
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Other protein kinase group
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Other protein kinase PEK family
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Other protein kinase PEK subfamily
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| Function |
Metabolic-stress sensing protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (EIF2S1/eIF-2-alpha) in response to various stress conditions. Key activator of the integrated stress response (ISR) required for adaptation to various stress, such as unfolded protein response (UPR) and low amino acid availability (By similarity). EIF2S1/eIF-2-alpha phosphorylation in response to stress converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, leading to a global attenuation of cap-dependent translation, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activators ATF4 and QRICH1, and hence allowing ATF4- and QRICH1-mediated reprogramming (PubMed:33384352). 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 (By similarity).
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| Uniprot ID |
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| Ensembl ID | |||||
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| Subcellular Location |
Endoplasmic reticulum membrane
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Map of Molecular Bioactivity Related to the Protein
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Map of Molecular Bioactivity Related to the Protein Protein Cell Line Compound Bioactivity Value: <= 0.1 μM > 0.1 μM and <= 10 μM > 10 μM Imprecise Activity |
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Table of Molecular Bioactivities Related to the Protein
Cell Line ID: CL000068 , A-549
Cell Line ID: CL000006 , HEK293
Cell Line ID: CL000156 , HT-1080
Cell Line ID: CL000043 , U2OS
Biochemical Assays
Clinical Information about the Protein
Target 1 ( PRKR-like endoplasmic reticulum kinase (PERK) )
| Target Type | Clinical trial Target | ||||
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Target 2 ( Pancreatic eIF2-alpha kinase (HsPEK) )
| Target Type | Literature-reported Target | ||||
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