Single-column amino acid analysis of connective tissue proteins and related materials

✍ Scribed by Alex G. Georgiadis; J.W. Coffey; James G. Hamilton; O.Neal Miller

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 491 KB
• Volume: 67
• Category: Article
• ISSN: 0003-2697
• DOI: 10.1016/0003-2697(75)90318-8

✦ Synopsis

A single-column procedure is described which, in general, is useful for the amino acid analysis of any simple or complex protein, but in particular the procedure is useful for the separation and quantitation of the amino acids and amino sugars, if present, in collagen. elastin and related materials from a variety of connective tissues. In addition to the amino acids commonly found in proteins, the system resolves hydroxyproline, hydroxylysine, desmosine, isodesmosine, glucosamine. galactosamine and also a number of other ninhydrin-positive compounds ordinarily not found in acid hydrolysates of proteins. Chromatograms of the analysis of a synthetic mixture of amino acid standards and also collagen and elastin hydrolysates indicate the multiple use of the procedure and the nearbaseline separation of all the amino acids. The basic amino acids are well spread, thus providing flexibility for the isolation and identification of additional ninhydrin-positive components. The analysis, which requires approximately 2 hr and four sodium citrate buffers was performed with a Durrum (D-500) amino acid analyzer.