elF2 alpha (EIF2S1) (NM_004094) Human Mass Spec Standard

CAT#: PH300368

EIF2S1 MS Standard C13 and N15-labeled recombinant protein (NP_004085)

Product Images

Coomassie blue staining of purified EIF2S1 protein (Cat# TP300368). The protein was produced from HEK293T cells transfected with EIF2S1 cDNA clone (Cat# RC200368) using MegaTran 2.0 (Cat# TT210002).

Specifications

Product Data

• Tag: C-Myc/DDK
• Species: Human
• Expression Host: HEK293
• Expression cDNA Clone or AA Sequence: RC200368
• Predicted MW: 36.1 kDa
• Protein Sequence:
  Sequence Link

  >RC200368 protein sequence
  Red=Cloning site Green=Tags(s)
  
  MPGLSCRFYQHKFPEVEDVVMVNVRSIAEMGAYVSLLEYNNIEGMILLSELSRRRIRSINKLIRIGRNEC
  VVVIRVDKEKGYIDLSKRRVSPEEAIKCEDKFTKSKTVYSILRHVAEVLEYTKDEQLESLFQRTAWVFDD
  KYKRPGYGAYDAFKHAVSDPSILDSLDLNEDEREVLINNINRRLTPQAVKIRADIEVACYGYEGIDAVKE
  ALRAGLNCSTENMPIKINLIAPPRYVMTTTTLERTEGLSVLSQAMAVIKEKIEEKRGVFNVQMEPKVVTD
  TDETELARQMERLERENAEVDGDDDAEEMEAKAED
  
  TRTRPLEQKLISEEDLAANDILDYKDDDDKV
• Purity: > 80% as determined by SDS-PAGE and Coomassie blue staining
• Concentration: 50 ug/ml as determined by BCA
• Labeling Method: Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine
• Buffer: 100 mM glycine, 25 mM Tris-HCl, pH 7.3. Store at -80°C. Avoid repeated freeze-thaw cycles. Stable for 3 months from receipt of products under proper storage and handling conditions.

Reference Data

• RefSeq: NP_004085
• RefSeq Size: 4165
• RefSeq ORF: 945
• Synonyms: EIF-2; EIF-2A; EIF-2alpha; EIF2; EIF2A
• Locus ID: 1965
• UniProt ID: P05198, Q53XC0
• Cytogenetics: 14q23.3
• Summary: '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]'