Phospho-eIF2α (Ser51) Antibody (YA7608)

Cat. No.: HY-P87923: Data Sheet COA
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Phospho-eIF2α (Ser51) Antibody (YA7608) is a Rabbit-derived and non-conjugated IgG, Kappa monoclonal antibody, targeting to Phospho-eIF2α (Ser51).

For research use only. We do not sell to patients.

Size	Stock	Quantity
10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Background
Documentation

Description

Phospho-eIF2α (Ser51) Antibody (YA7608) is a Rabbit-derived and non-conjugated IgG, Kappa monoclonal antibody, targeting to Phospho-eIF2α (Ser51).

Host

Rabbit

Clonality

Monoclonal,Recombinant

Molecular Weight

Predicted band size: 36 kDa;

Observed band size: 36 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse, Rat, Chicken, Pig, Dog

SwissProt ID

P05198

Immunogen

The exact sequence is proprietary to MCE.

Application &
Dilution Ratio

Application	Dilution Ratio
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:100-1:1000
WB WB: Western Blot	1:2000-1:10000
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:200-1:1000
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-1:20000

Sensitivity	Endogenous	Purity	Protein A affinity purified
Conjugation	Non-conjugated	Modification	Phosphorylated
Isotype	IgG, Kappa

Appearance

Liquid

Formulation

Supplied in PBS (pH7.4) containing 50% glycerol, 0.05% Proclin 300, 0.05%BSA

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Member of the eIF2 complex that functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (PubMed:16289705, PubMed:38340717). This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S pre-initiation complex (43S PIC) (PubMed:16289705). Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF2 and release of an eIF2-GDP binary complex (PubMed:16289705). In order for eIF2 to recycle and catalyze another round of initiation, the GDP bound to eIF2 must exchange with GTP by way of a reaction catalyzed by eIF2B (PubMed:16289705). EIF2S1/eIF2-alpha is a key component of the integrated stress response (ISR), required for adaptation to various stress: phosphorylation by metabolic-stress sensing protein kinases (EIF2AK1/HRI, EIF2AK2/PKR, EIF2AK3/PERK and EIF2AK4/GCN2) in response to stress converts EIF2S1/eIF2-alpha in a global protein synthesis inhibitor, leading to an 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:19131336, PubMed:33384352, PubMed:38340717). EIF2S1/eIF2-alpha also acts as an activator of mitophagy in response to mitochondrial damage: phosphorylation by EIF2AK1/HRI promotes relocalization to the mitochondrial surface, thereby triggering PRKN-independent mitophagy (PubMed:38340717)

Subcellular Localization：Cytoplasm, Stress granule,Cytoplasm, cytosol,Mitochondrion

Expression：Induction: Up-regulated upon endoplasmic reticulum stress

Isoforms & Post-Translational Modification：P05198: 315 amino acids, molecular weight 36112 Da.

Subunit：Eukaryotic translation initiation factor 2 eIF2 is a heterotrimeric complex composed of an alpha (EIF2S1), a beta (EIF2S2) and a gamma (EIF2S3) chain (PubMed:23063529, PubMed:31048492, PubMed:31836389, PubMed:35031321)

Documentation

Select Batch:

Data Sheet (232 KB) SDS (251 KB)

COA (206 KB)

User Guide for Antibodies (1077 KB)