8.B.6.1.8
Tachystatin-B1 of 42 aas.  Exhibits stronger antimicrobial activity against Gram-positive bacteria (S. aureus  (IC50 is 7.4 µg/ml)), fungi (C. albicans (IC50 is 3.0 µg/ml) and P. pastoris (IC50 is 0.1 µg/ml)) than Gram-negative bacteria (E.coli, no inhibition at 100 µg/ml). Binds to chitin. Does not cause hemolysis on sheep erythrocytes. Has no blocking activity on the P-type calcium channel.