Showing papers in "Biofizika in 1966"

Interaction of acridines with dna

Abstract: : It is known that two types of bonding exist between acridines and DNA in its native double helical configuration. The first type of bonding is observed at small ratios of the number of acridine molecules to the number of DNA nucleotides (P/D > or = 4, where P - the number of nucleotides, D - the number of acridine molecules), the second is observed at large concentrations of molecules (acridine < or = P/D < or = 3). This report is limited to an examination of a complex of the first type.

On the existence of free radicals in the enzymatic hydrolysis of adenosine triphosphate (ATP)

Abstract: : An investigation of the influence of propyl gallate on the reaction of ATP-ase with myosin and with actomyosin demonstrated that inorganic phosphate evolution declined with increasing propyl gallate concentration. Evidence indicates, however, that propyl gallate is a nonspecific inhibitor. When diphenyl picryl hydrazyl is added to the system ATP-actinomyosin, its concentration is reduced in a manner which suggests the formation of free radicals during ATP hydrolysis.