M. Peteroy et al., Characterization of a Mycobacterium smegmatis mutant that is simultaneously resistant to D-cycloserine and vancomycin, ANTIM AG CH, 44(6), 2000, pp. 1701-1704
A mutant of Mycobacterium smegmatis has been isolated that is simultaneousl
y resistant to both D-cycloserine ((D)-CS) and vancomycin. Genetic compleme
ntation with a PBP4 homolog restores sensitivity to both drugs. Resistance
to D-CS and vancomycin in this mutant is most likely due to a novel mechani
sm involving peptidoglycan assembly at the cell surface.