| Literature DB >> 21525873 |
Susan E Cellitti1, Weijia Ou, Hsien-Po Chiu, Jan Grünewald, David H Jones, Xueshi Hao, Qian Fan, Lisa L Quinn, Kenneth Ng, Andrew T Anfora, Scott A Lesley, Tetsuo Uno, Ansgar Brock, Bernhard H Geierstanger.
Abstract
D-ornithine has previously been suggested to enhance the expression of pyrrolysine-containing proteins. We unexpectedly discovered that uptake of D-ornithine results in the insertion of a new amino acid, pyrroline-carboxy-lysine (Pcl) instead of the anticipated pyrrolysine (Pyl). Our feeding and biochemical studies point to specific roles of the poorly understood Pyl biosynthetic enzymes PylC and PylD in converting L-lysine and D-ornithine to Pcl and confirm intermediates in the biosynthesis of Pyl.Entities:
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Year: 2011 PMID: 21525873 DOI: 10.1038/nchembio.586
Source DB: PubMed Journal: Nat Chem Biol ISSN: 1552-4450 Impact factor: 15.040