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  1. www.ncbi.nlm.nih.gov › pmc › articlesSynthesis and decoding of selenocysteine and human health

    Oct 9, 2012 · Emerging evidence suggests that enzymes responsible for selenocysteine formation and decoding the selenocysteine UGA codon, which by extension are critical for synthesis of the entire selenoproteome, are essential for the development and health of the human organism.

  2. www.sciencedirect.com › science › articleSelenocysteine in proteins—properties and biotechnological use

    Oct 30, 2005 · All of the methods are based on either the introduction of a selenium isotope, with specific characteristics such as high-energy radioactivity (as for 75 Se and 73 Se) or uncommon nuclear spin ( 77 Se), or on the high reactivity of a Sec residue in comparison to Cys. Table 5.

    • Linda Johansson, Guro Gafvelin, Elias S.J. Arnér
    • 2005

  3. en.wikipedia.org › wiki › SelenocysteineSelenocysteine - Wikipedia

    In eukaryotes and archaea, two enzymes are required to convert tRNA-bound seryl residue into tRNA selenocysteinyl residue: PSTK (O-phosphoseryl-tRNA[Ser]Sec kinase) and selenocysteine synthase.

  4. www.ncbi.nlm.nih.gov › pmc › articlesSelenoproteins: Molecular Pathways and Physiological Roles

    Although selenoproteins represent diverse molecular pathways and biological functions, all these proteins contain at least one selenocysteine (Sec), a selenium-containing amino acid, and most serve oxidoreductase functions.

  5. www.ncbi.nlm.nih.gov › pmc › articlesThe Molecular Biology of Selenocysteine - PMC

    Aug 1, 2013 · Interestingly, a single Sec residue resides in the N-terminus while the remaining are primarily located in the C-terminus . The N-terminus of SelP has been shown to have potential weak antioxidant role while the C-terminus is essential for selenium distribution (65,131).

    • Jonathan N. Gonzalez-Flores, Sumangala P. Shetty, Aditi Dubey, Paul R. Copeland
    • 10.1515/bmc-2013-0007
    • 2013
    • 2013/08/08

  6. www.sciencedirect.com › selenocysteineSelenocysteine - an overview | ScienceDirect Topics

    Our approach makes use of “native chemical ligation.” 8,9 Native chemical ligation allows for two peptide chains to be joined chemoselectively through the use of a C-terminal thioester on one peptide and an N-terminal cysteine residue on the other peptide ( Fig. 1 ).

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  8. link.springer.com › content › pdfMechanism, Structure, and Biological Role of Selenocysteine ...

    As shown in Fig. 10.1 , selenide is the key compound for selenoprotein biosyn-thesis . A selenocysteine residue is encoded by the UGA codon in selenoprotein mRNA , which is decoded by selenocysteyl-tRNA [Ser]Sec [ 3 , 4 ]. The selenocysteine moiety on selenocysteyl-tRNA [Ser]Sec is biosynthesized using selenophosphate ,

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