Tags: Drug.
Gramicidin S or Gramicidin Soviet is an antibiotic effective against some Gram positive and Gram negative bacteria as well as some fungi. It is a derivative of gramicidin produced by the Gram positive bacterium Bacillus brevis. Gramicidin S is a cyclodecapeptide constructed as two identical pentapeptides joined head to tail formally written as cyclo(-Val-Orn-Leu-D-Phe-Pro-)2.
