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Phospho-EIF2AK3 (Thr980) Antib

ody Blocking Peptide(bs-23340P)-500ug
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  • ¥1080
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  • bs-23340P
  • 2025年10月16日
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      500ug

    产品编号bs-23340P
    英文名称Phospho-EIF2AK3 (Thr980) Antibody Blocking Peptide
    中文名称磷酸化蛋白激酶样内质网激酶封闭多肽
    英文别名p-PERK(Thr980); PERK(Phospho Thr980); PERK(Phospho T980); Phospho-PERK(Thr982)(human); HRI; HsPEK; Pancreatic eIF2-alpha kinase; PEK; PRKR like endoplasmic reticulum kinase; WRS; DKFZp781H1925; EC 2.7.11.1; EIF2AK3; Eukaryotic translation initiation factor 2 alpha kinase 3; Heme regulated EIF2 alpha kinase.
    纯化方法HPLC
    研究领域

    Epigenetics and Nuclear Signaling > DNA / RNA > Translation > Regulation

    Epigenetics and Nuclear Signaling > RNAi > Eukaryotic Initiation factors (eIF's)

    Metabolism > Types of disease > Diabetes

    Metabolism > Types of disease > Metabolic disorders

    Metabolism > Types of disease > Obesity

    亚基

    Forms dimers with HSPA5/BIP in resting cells (PubMed:21543844).
    Oligomerizes in ER-stressed cells (PubMed:10854322).
    Interacts with DNAJC3 (PubMed:12446838).
    Interacts with MFN2 (PubMed:23921556).
    Interacts with TMEM33 (By similarity).
    Interacts with PDIA6 (By similarity).
    Interacts with LACC1 (By similarity).

    亚细胞定位

    Endoplasmic reticulum membrane; Single-pass type I membrane protein.

    组织特异性

    Ubiquitous.

    翻译后修饰

    Autophosphorylated. Phosphorylated at Tyr-615 following endoplasmic reticulum stress, leading to activate its tyrosine-protein kinase activity. Dephosphorylated by PTPN1/TP1B, leading to inactivate its enzyme activity.
    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-980 on the kinase activation loopBy Similarity1 Publication
    N-glycosylated.
    ADP-ribosylated by PARP16 upon ER stress, which increases kinase activity.

    相似性

    Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. GCN2 subfamily.
    Contains 1 protein kinase domain.

    功能

    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 (PubMed:9930704, PubMed:11106749, PubMed:23921556).
    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 (PubMed:9930704, PubMed:11106749, PubMed:23921556).
    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:11106749, PubMed:23921556).
    Serves as a critical effector of unfolded protein response (UPR)-induced G1 growth arrest due to the loss of cyclin-D1 (CCND1) (PubMed:11035797).
    Involved in control of mitochondrial morphology and function (PubMed:23921556).

    保存条件Shipped at 4℃. Stored at -20℃ for one year. Avoid repeated freeze/thaw cycles.
    注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
    背景资料The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2 (EIF2), leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. 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, Jan 2010].

     

     

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