JBC, Vol. 253, Issue 14, 4830-4832, Jul, 1978
Effect of light and oxygen on neocarzinostatin stability and DNA-cleaving activity
R. M. Burger, J. Peisach and S. B. Horwitz
The in vitro DNA-cleaving activity of neocarzinostatin, a protein
antibiotic, is strongly but reversibly inhibited by anaerobiosis.
Half-maximal activity is seen in the presence of 0.25 mM O2. The stability
of neocarzinostatin, as demonstrated by its ability to cleave DNA, is
significantly reduced in light. Inactivation by light is complete and
irreversible.