• eIF2α (phospho Ser51) Polyclonal Antibody
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Upingbio

YP-Ab-03515-100UL

eIF2α (phospho Ser51) Polyclonal Antibody

eIF2α (phospho Ser51) Polyclonal Antibody

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  • Gene Name: EIF2S1
  • Immunogen: The antiserum was produced against synthesized peptide derived from human eIF2 alpha around the phosphorylation site of Ser51. AA range:21-70
  • Specificity: Phospho-eIF2α (S51) Polyclonal Antibody detects endogenous levels of eIF2α protein only when phosphorylated at S51.
  • Composition: Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
  • Source: Polyclonal, Rabbit,IgG
  • Dilution ratio: IF: 1:50-200 Western Blot: 1/500 - 1/2000. Immunohistochemistry: 1/100 - 1/300. ELISA: 1/10000. Not yet tested in other applications.
  • Purification process: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
  • Concentration: 1 mg/ml
  • Storage: -20°C/1 year
  • Other Names: EIF2S1; EIF2A; Eukaryotic translation initiation factor 2 subunit 1; Eukaryotic translation initiation factor 2 subunit alpha; eIF-2-alpha; eIF-2A; eIF-2alpha
  • Background: The translation initiation factor EIF2 catalyzes the first regulated step of protein synthesis initiation, promoting the binding of the initiator tRNA to 40S ribosomal subunits. Binding occurs as a ternary complex of methionyl-tRNA, EIF2, and GTP. EIF2 is composed of 3 nonidentical subunits, the 36-kD EIF2-alpha subunit (EIF2S1), the 38-kD EIF2-beta subunit (EIF2S2; MIM 603908), and the 52-kD EIF2-gamma subunit (EIF2S3; MIM 300161). The rate of formation of the ternary complex is modulated by the phosphorylation state of EIF2-alpha (Ernst et al., 1987 [PubMed 2948954]).[supplied by OMIM, Feb 2010],
  • Function: function:Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B.,PTM:Substrate for at least 4 kinases: EIF2AK3/PERK, GCN2, HRI and PKR. Phosphorylation stabilizes the eIF-2/GDP/eIF-2B complex and prevents GDP/GTP exchange reaction, thus impairing the recycling of eIF-2 between successive rounds of initiation and leading to global inhibition of translation. In case of infection by vaccinia virus or rotavirus
  • Species: Human;Mouse;Rat;Dog;Pig;Fish
  • Range: IF;WB;IHC;ELISA
  • Protein: Eukaryotic translation initiation factor 2 subunit 1
  • DA: 38kD
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