We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleBiosynthetically directed fractional 13C-labeling of proteinogenic amino acids. An efficient analytical tool to investigate intermediary metabolism.AuthorsSzyperski TPublicationEuropean journal of biochemistry, 1995, Vol 232, Issue 2, p433ISSN0014-2956Publication typearticleDOI10.1111/j.1432-1033.1995.tb20829.x