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  • Title: The disulfide bridges of ribonuclease U2 from Ustilago sphaerogena.
    Author: Sato S, Uchida T.
    Journal: J Biochem; 1975 Jun; 77(6):1171-6. PubMed ID: 1225902.
    Abstract:
    RNase U2 was partially hydrolyzed with chymotrypsin [EC 3.4.21.1] and sulfuric acid, and in each case the resulting peptides were separated by gel filtration, ion exchange column chromatography and paper electrophoresis. From the results of amino acid analysis of cystine-containing peptides and their oxidized components, the three disulfide bridges were located between the cystine residues at positions 1 and 53, 9 and 112, and 54 and 95.
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