Render Target: STATIC
Render Timestamp: 2024-11-21T14:04:21.271Z
Commit: 5c4accf06eb7154018ba3f54329c7590f97f534a
XML generation date: 2024-09-30 01:54:32.577
Product last modified at: 2024-11-18T20:00:08.530Z
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PDP - Template Name: Monoclonal Antibody
PDP - Template ID: *******c5e4b77

eIF2α (L57A5) Mouse mAb #2103

Filter:
  • WB
  • IHC

    Supporting Data

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 38
    Source/Isotype Mouse IgG2b
    Application Key:
    • WB-Western Blotting 
    • IHC-Immunohistochemistry 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunohistochemistry (Paraffin) 1:50

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

    For a carrier free (BSA and azide free) version of this product see product #68433.

    Protocol

    Specificity / Sensitivity

    eIF2α (L57A5) Mouse mAb detects endogenous levels of total eIF2α protein.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Monoclonal antibody is produced by immunizing animals with a purified recombinant protein fragment representing sequence in the central region of human eIF2α.

    Background

    Phosphorylation of the eukaryotic initiation factor 2 (eIF2) α subunit is a well-documented mechanism to downregulate protein synthesis under a variety of stress conditions. eIF2 binds GTP and Met-tRNAi and transfers Met-tRNA to the 40S subunit to form the 43S preinitiation complex (1,2). eIF2 promotes a new round of translation initiation by exchanging GDP for GTP, a reaction catalyzed by eIF2B (1,2). Kinases that are activated by viral infection (PKR), endoplasmic reticulum stress (PERK/PEK), amino acid deprivation (GCN2), or heme deficiency (HRI) can phosphorylate the α subunit of eIF2 (3,4). This phosphorylation stabilizes the eIF2-GDP-eIF2B complex and inhibits the turnover of eIF2B. Induction of PKR by IFN-γ and TNF-α induces potent phosphorylation of eIF2α at Ser51 (5,6).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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