EEFSEC Antibody (C-term) Blocking Peptide
Synthetic peptide
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Primary Accession | P57772 |
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Gene ID | 60678 |
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Other Names | Selenocysteine-specific elongation factor, Elongation factor sec, Eukaryotic elongation factor, selenocysteine-tRNA-specific, EEFSEC, SELB |
Format | Peptides are lyophilized in a solid powder format. Peptides can be reconstituted in solution using the appropriate buffer as needed. |
Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C. |
Precautions | This product is for research use only. Not for use in diagnostic or therapeutic procedures. |
Name | EEFSEC {ECO:0000303|PubMed:27708257, ECO:0000312|HGNC:HGNC:24614} |
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Function | Translation factor required for the incorporation of the rare amino acid selenocysteine encoded by UGA codons (PubMed:27708257, PubMed:35709277). Replaces the eRF1-eRF3-GTP ternary complex for the insertion of selenocysteine directed by the UGA codon (PubMed:27708257, PubMed:35709277). Insertion of selenocysteine at UGA codons is mediated by SECISBP2 and EEFSEC: SECISBP2 (1) specifically binds the SECIS sequence once the 80S ribosome encounters an in-frame UGA codon and (2) contacts the RPS27A/eS31 of the 40S ribosome before ribosome stalling (PubMed:35709277). (3) GTP-bound EEFSEC then delivers selenocysteinyl- tRNA(Sec) to the 80S ribosome and adopts a preaccommodated state conformation (PubMed:35709277). (4) After GTP hydrolysis, EEFSEC dissociates from the assembly, selenocysteinyl-tRNA(Sec) accommodates, and peptide bond synthesis and selenoprotein elongation occur (PubMed:35709277). |
Cellular Location | Cytoplasm. Nucleus. |
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Provided below are standard protocols that you may find useful for product applications.
Background
EEFSEC is translation factor necessary for the incorporation of selenocysteine into proteins. It probably replaces EF-Tu for the insertion of selenocysteine directed by the UGA codon. SelB binds GTP and GDP.
References
Gudmundsson, J., et al. Nat. Genet. 41(10):1122-1126(2009)Donovan, J., et al. J. Biol. Chem. 283(50):35129-35139(2008)Muzny, D.M., et al. Nature 440(7088):1194-1198(2006)
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