抄録
A molecular weight of 980 was determined for fungisporin by the isothermal distillation method. In view of information published previously1) this points to a formula (Val, Phe)4 for this compound. Sequence studies on peptide fragments, obtained from fungisporin by partial acid hydrolysis, led to the structural formula cyclo-(Val2•Phe2)2 for this natural cyclic polypep-tide. Enzymatic experiments with the peptides obtained, showed that the full formula of fungi-sporin is most probably cyclo-(D-Val•L-Val•D-Phe•L-Phe•)2.
