Phospho-EIF2S1 (Ser51) Antibody (YA203)

Cat. No.: HY-P80811: Data Sheet COA
SDS
User Guide for Antibodies
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Phospho-EIF2S1 (Ser51) Antibody (YA203) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-EIF2S1 (Ser51).

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

Size	Stock	Quantity
20 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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Phospho-EIF2S1 (Ser51) Antibody (YA203) Featured Recommendations:

3 Publications Citing Use of MCE Phospho-EIF2S1 (Ser51) Antibody (YA203)

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
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Background
Documentation

Description

Phospho-EIF2S1 (Ser51) Antibody (YA203) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-EIF2S1 (Ser51).

Host

Rabbit

Clonality

Recombinant, Monoclonal

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

SwissProt ID

P05198

Gene ID

1965 [NCBI]

Immunogen

Synthetic phosphopeptide corresponding to residues surrounding Ser51 of Human EIF2S1.The exact sequence is proprietary to MCE.

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:500-1:1000

Sensitivity	Endogenous	Purity	affinity purified
Conjugation	Non-conjugated	Modification	Phosphorylated
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol and 0.05% BSA. Preservative: 0.01% Sodium azide

Storage & Stability

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

Shipping

Shipping with blue ice.

Verification Image

Western blot analysis of extracts from K-562(lane 2(20μg) ,C6(lane 3(20μg) and NIH/3T3(lane 4(20ug)using Phospho-eIF2A Antibody (HY-P80811) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

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

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). eIF2 is member of the 43S pre-initiation complex (43S PIC). eIF2 forms a complex with at least CELF1/CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5 (By similarity). Interaction with METAP2 protects EIF2S1 from inhibitory phosphorylation (By similarity). Interacts with ABCF1 isoform 2 (PubMed:17894550). Associates with ribosomes (PubMed:17894550). Interacts with DDX3X in an RNA-independent manner (PubMed:18596238). Interacts with CDC123 (PubMed:31836389, PubMed:35031321)

RRID

AB_3102203

Database

Entrez Gene: 1965 Human ; 13665 Mouse ; 54318 Rat

SwissProt: P05198 Human ; Q6ZWX6 Mouse ; P68101 Rat

OMIM: 603907 Human

Research Field

Epigenetics and Nuclear Signaling

Synonyms

EIF2S1; EIF2A; Eukaryotic translation initiation factor 2 subunit 1; Eukaryotic translation initiation factor 2 subunit alpha; eIF-2-alpha; eIF-2A; eIF-2alpha

Documentation

Select Batch:

Data Sheet (233 KB) SDS (252 KB)

COA (206 KB)

User Guide for Antibodies (1077 KB)

Phospho-EIF2S1 (Ser51) Antibody (YA203) Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Phospho-EIF2S1 (Ser51) Antibody (YA203)

Phospho-EIF2S1 (Ser51) Antibody (YA203) Featured Recommendations:

3 Publications Citing Use of MCE Phospho-EIF2S1 (Ser51) Antibody (YA203)

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Background

Documentation

Phospho-EIF2S1 (Ser51) Antibody (YA203) Related Classifications

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