
All amino groups in a proteinous antitumor antibiotic, neocarzinostatin, were reacted with succinic anhydride yielding bis- N -succinyl neocarzinostatin which retained biological activity in vitro against human cell lines and a bacterium. Amino groups in neocarzinostatin do not appear to play an important role in the activity.
Antibiotics, Antineoplastic, Sarcina, Proteins, Succinates
Antibiotics, Antineoplastic, Sarcina, Proteins, Succinates
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