Identification and estimation of some uncommon diamino acids |
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Authors: | M M Herbst B G Baltimore G Bozler H A Barker |
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Affiliation: | Department of Biochemistry, University of California, Berkeley, California 94720 USA |
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Abstract: | Application of the amino acid analyzer is described for the separation, identification, and estimation of several uncommon dibasic amino acids that are eluted with a 0.35 m, pH 5.28, sodium citrate buffer between lysine and ammonia, namely, 2,5-diaminohexanoate, threo- and erythro-3,5-diaminohexanoate, 3,6-diaminohexanoate (β-lysine) and 2,4-diaminopentanoic acid. Conditions are also given for estimating d- and l-β-lysine as their l-glutamyl peptides, and for estimating the enantiomers of threo- and erythro-3,5-diaminohexanoate as the l-glutamyl derivative of the corresponding lactams. |
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