Acid deoxyribonuclease activity in rheumatoid.

Deoxyribonuclease Activity

The relationship of catalase, cystinase, and deoxyribonuclease activity to toxinogeny in Corynebacterium diphtheriae was examined. Mutants deficient in each activity were isolated after mutagenization of strain C4 with nitrosoguanidine. All mutants were converted to toxinogeny after lysogenization with beta-converting phage, thus establishing that there is no absolute link between toxin product...

Structure of acid deoxyribonuclease

Deoxyribonuclease II (DNase II) is also known as acid deoxyribonuclease because it has optimal activity at the low pH environment of lysosomes where it is typically found in higher eukaryotes. Interestingly, DNase II has also been identified in a few genera of bacteria and is believed to have arisen via horizontal transfer. Here, we demonstrate that recombinant Burkholderia thailandensis DNase ...

Evaluation of extracellular deoxyribonuclease activity in Pseudomonas.

Streitfeld, Murray M. (University of Miami, Coral Gables, Fla.), Edward M. Hoffmann, and Herbert M. Janklow. Evaluation of extracellular deoxyribonuclease activity in Pseudomonas. J. Bacteriol. 84:77-80. 1962.-Of 23 strains of P. aeruginosa isolated from pathological processes, 22 strains, representative of at least nine different somatic antigen types, were found to elaborate extracellular deo...

Late deoxyribonuclease activity of Salmonella enteriditis.

As a result of chance observations, the authors studied for deoxyribonuclease activity 16 strains of Salmonella, including six fresh isolates and ten stock cultures, with positive results in 13. Reactions characteristically occurred at 48 hours or later, with the majority being manifest at 72 hours and the latest at six days. No other positive reaction was observed among approximately 7,000 Ent...

Deoxyribonuclease activity of micrococci from clinical sources.