1.14.14.13	719270	Biosynthesis of the unique amino acid side chain of butirosin: possible protective-group chemistry in an acyl carrier protein-mediated pathway	Chem. Biol.	12	665-675	2005	Niallia circulans	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=15975512&form=6&db=m