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  • Journal
    Summary: Nature Protocols is an interactive online resource for experimental and laboratory protocols for bench researchers primarily in biology and chemistry. Protocols are presented in a 'recipe' style providing step-by-step descriptions of procedures that users can take to the lab bench and immediately apply in their own research. Protocols on the site are fully searchable and organized into logical categories to be easily accessible. Together, 'Nature Protocols' and the interactive 'Protocols Network' create a dynamic forum for scientists to upload and comment on protocols.
    Digital Access Nature v. 1-, 2006-
  • Article
    Zarkadas CG.
    Can J Biochem. 1975 Jan;53(1):96-101.
    A chromatographic method is described for the determination of epsilon-N-monomethyl-epsilon-N, epsilon-N-dimethyl-, and epsilon-N, epsilon-N, epsilon-N-trimethyllysines, 1-methyl-, and 3-methylhistidines, N-G, N-G-dimethyl-, and N-G, N'G-dimethylarginines, ornithine, the diastereoisomers of hydroxylysine, basic amino acids and related compounds, using Durrum type DC-6A 11.0 plus or minus 1.0 mum spherical resin. The complete separation of all of these amino acids as discrete peaks in the Beckman 120B amino acid analyzer was achieved for the first time using a single column (60 times 0.9 cm), one buffer system (0.35 N sodium citrate) adjusted at either pH 5.734 or 5.657 plus or minus 0.002, one buffer flow rate (30 ml/h), and one temperature (28 degrees C). This procedure was used for the analysis of these unusual amino acids in protein hydrolysates of histones and collagen and be applied to the determination of these compounds in hydrolysates of plant and animal tissues.
    Digital Access Access Options