Some bacteria already make use of D form amino acids. Incoporation of D-Alanine into the bacterial cell wall can confer a degree of Vancomycin resistance to some bacteria (
May, et al., 2005). This is not part of the process of protein synthesis at the ribosomal level however but a subsequent biochemical incorporation with the structural elements of the cell wall, specifically teichoic acid.
TTFN,
WK
Edited by Wounded King, : No reason given.