Pumilacidin, a complex of new antiviral antibiotics. Production, isolation, chemical properties, structure and biological activity.

Abstract
New antibiotic pumilacidins A, B, C, D, E, F and G were isolated from the culture broth of a strain of Bacillus pumilus. They are cyclic acylheptapeptide composed of a .beta.-hydroxy fatty acid, two L-leucine, two D-leucine, L-glutamine acid, L-aspartic acid and L-isoleucine (or L-valine). Pumilacidin components were inhibitory to herpes simplex virus type 1 and H+, K+-ATPase and demonstrated antiulcer activity in rat.