Faculty of Biotechnology and Food Sciences in Nitra Journal of Microbiology, Biotechnology and Food Sciences 1338-5178 no. 6 vol. 4 2015-06-01 2015-06-01 BIOCHEMICAL AND PHYLOGENETIC STUDIES OF CreD OF Corynebacterium glutamicum 478 480 EN Muhammad Tausif Chaudhry Muhammad Tausif Chaudhry Raheela Chaudhry Raheela Chaudhry Shuang-Jiang Liu Shuang-Jiang Liu CreD characterized as Mg2+-dependent phosphohydrolase with conserved HD domain was involved in 4-cresol metabolism in Corynebacterium glutamicum. Native molecular mass of 54 kDa suggested that the biological unit is a dimer. No deoxynucleotide triphosphate triphosphohydrolase (dNTPase) activity was detected for CreD. The apparent Km and Vmax values for 4-nitrophenyl phosphate were 0.35 mM and 16.23 M min-1 mg-1, respectively, while calculated values for kcat and kcat/Km were 0.4 s-1 and 1.14103 M-1 s-1, respectively. Among thiol group inhibitors, iodoacetic acid significantly inhibited phosphohydrolase activity. Sequence identity and phylogenetic analysis suggested universal existence of CreD homologues. Involvement of HD-domain hydrolase in aromatic degradation has not been reported before.
wso shell IndoXploit shell wso shell hacklink hacklink satış hacklink wso shell