Host: | Rabbit |
Applications: | IF |
Reactivity: | Human |
Note: | STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
Short Description: | Rabbit polyclonal antibody anti-Eukaryotic Translation Initiation Factor 2-Alpha Kinase 3 (50-600) is suitable for use in Immunofluorescence research applications. |
Clonality: | Polyclonal |
Conjugation: | Unconjugated |
Isotype: | IgG |
Formulation: | PBS with 0.05% Proclin300, 50% Glycerol, pH7.3. |
Purification: | Affinity purification |
Dilution Range: | IF/ICC 1:50-1:200 |
Storage Instruction: | Store at-20°C for up to 1 year from the date of receipt, and avoid repeat freeze-thaw cycles. |
Gene Symbol: | EIF2AK3 |
Gene ID: | 9451 |
Uniprot ID: | E2AK3_HUMAN |
Immunogen Region: | 50-600 |
Immunogen: | A synthetic peptide corresponding to a sequence within amino acids 50-600 of human PERK (NP_004827.4). |
Immunogen Sequence: | FLDNPHYNKNIRKKDPVLLL HWWKEIVATILFCIIATTFI VRRLFHPHPHRQRKESETQC QTENKYDSVSGEANDSSWND IKNSGYISRYLTDFEPIQCL G |
Tissue Specificity | Ubiquitous. A high level expression is seen in secretory tissues. |
Post Translational Modifications | Oligomerization of the N-terminal ER luminal domain by ER stress promotes PERK trans-autophosphorylation of the C-terminal cytoplasmic kinase domain at multiple residues including Thr-982 on the kinase activation loop. Autophosphorylated. Phosphorylated at Tyr-619 following endoplasmic reticulum stress, leading to activate its tyrosine-protein kinase activity. Dephosphorylated by PTPN1/TP1B, leading to inactivate its enzyme activity. N-glycosylated. ADP-ribosylated by PARP16 upon ER stress, which increases kinase activity. |
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. 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. 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. |
Protein Name | Eukaryotic Translation Initiation Factor 2-Alpha Kinase 3 Prkr-Like Endoplasmic Reticulum Kinase Pancreatic Eif2-Alpha Kinase Hspek |
Database Links | Reactome: R-HSA-381042 Reactome: R-HSA-9700645 Reactome: R-HSA-9725370 |
Cellular Localisation | Endoplasmic Reticulum Membrane Single-Pass Type I Membrane Protein |
Alternative Antibody Names | Anti-Eukaryotic Translation Initiation Factor 2-Alpha Kinase 3 antibody Anti-Prkr-Like Endoplasmic Reticulum Kinase antibody Anti-Pancreatic Eif2-Alpha Kinase antibody Anti-Hspek antibody Anti-EIF2AK3 antibody Anti-PEK antibody Anti-PERK antibody |
Information sourced from Uniprot.org