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Human Phospho-eIF2 alpha (S52) Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB39971

R&D Systems, part of Bio-Techne
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MAB39971
MAB39971-SP

Key Product Details

Validated by

Biological Validation

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Western Blot

Cited:

Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Rat IgG2B Clone # 849159

Product Specifications

Immunogen

Phosphopeptide containing the human eIF2 alpha S52 site
Accession # P05198

Specificity

Detects human Phospho-eIF2 alpha (S52) in ELISAs and Western blots.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2B

Scientific Data Images for Human Phospho-eIF2 alpha (S52) Antibody

Detection of Human Phospho-eIF2a (S52) antibody by Western Blot.

Detection of Human Phospho-eIF2 alpha (S52) by Western Blot.

Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line and HEK293T human embryonic kidney cell line untreated (-) or treated (+) with 100nM Calyculin A (Catalog # 1336) and 20 ng/mL Recombinant Human TNF-a (Catalog # 210-TA) for 10 minutes or 20 mJ/cm2 ultraviolet light (UV) followed by a 30 minute recovery. PVDF membrane was probed with 1 µg/mL of Rat Anti-Human Phospho-eIF2a (S52) Monoclonal Antibody (Catalog # MAB39971) followed by HRP-conjugated Anti-Rat IgG Secondary Antibody (Catalog # HAF005). A specific band was detected for Phospho-eIF2a (S52) at approximately 38 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Applications for Human Phospho-eIF2 alpha (S52) Antibody

Application
Recommended Usage

Western Blot

1 µg/mL
Sample: HeLa human cervical epithelial carcinoma cell line and HEK293T human embryonic kidney cell line treated with Calyculin A and Recombinant Human TNF‑ alpha (Catalog # 210-TA) or ultraviolet light (UV)

Reviewed Applications

Read 1 review rated 5 using MAB39971 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Sterile PBS to a final concentration of 0.5 mg/mL. For liquid material, refer to CoA for concentration.

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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.

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

Alternate Names

EIF2S1

Entrez Gene IDs

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

Gene Symbol

EIF2S1

UniProt

Additional eIF2 alpha Products

Product Documents for Human Phospho-eIF2 alpha (S52) Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human Phospho-eIF2 alpha (S52) Antibody

For research use only

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