Render Target: STATIC
Render Timestamp: 2025-03-17T01:28:17.798Z
Commit: a619ae74f66dae0f27639e88da12bcf600e46428
XML generation date: 2025-03-07 13:16:32.221
Product last modified at: 2025-01-01T09:05:06.622Z
Cell Signaling Technology Logo

Basket Updated

0

Items added

1% for the planet logo
PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464

eIF2β Antibody #50537

Filter:
  • WB
Western Blotting Image 1: eIF2β Antibody
Western blot analysis of extracts from various cell lines using eIF2β Antibody.

To Purchase # 50537

Cat. # Size Qty. Price
50537S 100 µl
$306

Supporting Data

REACTIVITY H M R Mk
SENSITIVITY Endogenous
MW (kDa) 48
SOURCE Rabbit
Application Key:
  • WB-Western Blotting 
Species Cross-Reactivity Key:
  • H-Human 
  • M-Mouse 
  • R-Rat 
  • Mk-Monkey 
  • Related Products

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

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

Protocol

Specificity / Sensitivity

eIF2β Antibody recognizes endogenous levels of total eIF2β protein.

Species Reactivity:

Human, Mouse, Rat, Monkey

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro207 of human eIF2β protein. Antibodies are purified by peptide affinity chromatography.

Background

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 eIF2β (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-eIF2β complex and inhibits the turnover of eIF2β. Induction of PKR by IFN-γ and TNF-α induces potent phosphorylation of eIF2α at Ser51 (5,6).

The eIF2β subunit plays a major role in various interactions of the eIF2 trimer with other proteins. eIF2β has been shown to directly interact with other eIF factors, including eIF5, eIF2B, and eIF3 (7-9). eIF2β has also been shown to directly bind mRNA through a C-terminal zinc-finger motif (10,11). Phosphorylation of eIF2β by CK2 promotes the guanine nucleotide exchange activity of eIF2β (12,13).

Pathways

Explore pathways related to this product.


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit our Trademark Information page.