mycoplanecin a is a new cyclic peptide antibiotic composed of mol each of alpha-ketobutyric acid , glycine , l-leucine , l-proline , l-2-amino-5-methylhexanoic acid , n-methyl-d-leucine , n-methyl-l-threonine , methyl-l-proline and ethyl-l-proline and two mol of n-methyl-l-valine .
C0017890
glycine
C0002520
amino