Supporting Information Selenocysteine in Native Chemical Ligation and Expressed Protein Ligation
نویسندگان
چکیده
Instruments. NMR spectra were obtained with Bruker AC-300 and Varian UNITY-500 spectrometers. Mass spectra were obtained with Perkin Elmer Sciex API 365 electrospray ionization (ESI) and Bruker Biflex III matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) instruments at the University of Wisconsin Biotechnology Center. Ultraviolet and visible absorbance was recorded with a Cary Model 3 UV/VIS spectrophotometer from Varian equipped with a Varian temperature controller.
منابع مشابه
Selenocysteine in native chemical ligation and expressed protein ligation.
L-Selenocysteine (Sec or U) has been called the “21st amino acid”.1 Like the twenty common amino acids, selenocysteine is inserted during the translation of mRNA and has its own tRNASec and codon, UGA. This codon also serves as the opal stop codon. Decoding a UGA codon as one for selenocysteine requires a special structure in the 3′ untranslated region of the mRNA called a selenocysteine insert...
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