Human eIF2 alpha Antibody

Catalog #: MAB3997 Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB3997
MAB3997-SP

Detection of Human eIF2 alpha by Western Blot.

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All eIF2 alpha Antibodies

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human eIF2 alpha Antibody Summary

Species Reactivity

Human

Specificity

Detects human eIF2 alpha in Western blots.

Source

Monoclonal Rat IgG_2B Clone # 430516

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

E. coli-derived recombinant human eIF2 alpha
Met1-Asp315
Accession # Q53XC0

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration

Sample

Western Blot

1 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot

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Detection of Human eIF2 alpha by Western Blot. Western blot shows lysates of Jurkat human acute T cell leukemia cell line, K562 human chronic myelogenous leukemia cell line, and MCF-7 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human eIF2a Monoclonal Antibody (Catalog # MAB3997) followed by HRP-conjugated Anti-Rat IgG Secondary Antibody (Catalog # HAF005). A specific band was detected for eIF2a at approximately 40 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: eIF2 alpha

Eukaryotic translation initiation factor 2 alpha subunit (eIF2 alpha ) is a subunit of the eIF2 protein, an important regulator of translation initiation. Phosphorylation of eIF2 alpha on Ser 52 increases the affinity of eIF2 alpha for eIF2B, a guanine nucleotide exchange factor needed for the recycling of eIF2-GDP to eIF2-GTP. Reduction of eIF2-GTP levels leads to the suppression of the overall rate of protein synthesis. Heme-regulated inhibitor (HRI), ER-resident protein kinase PERK, dsRNA activated protein kinase PKR, and the homologue of the S. cerevisiae protein kinase GCN2 are all eIF2 alpha kinases.

Long Name

Eukaryotic Translation Initiation Factor 2 Alpha

Entrez Gene IDs

1965 (Human); 13665 (Mouse); 54318 (Rat)

Alternate Names

eIF2 alpha; EIF2; EIF-2; EIF2A; EIF-2A; EIF-2alpha; EIF2S1 eukaryotic translation initiation factor 2, subunit 1 alpha, 35kDa; EIF2S1