The Q b binding site o f photosystem II in green plants displays stereoselectivity for the (S') stereoisomer o f the a-methylbenzyl derivative o f atrazine but not for derivatives with smaller substituents such as sec-butyl. We have shown that interactive models reflect the experimental data by determining the intermolecular energies between the D 1 protein binding region (resi­ dues Leu 210 to...

This study investigates the solid-state structure of a copolymer composed polyethylene glycol (PEG) and azacalixarene, which has two s-triazine rings phenyl alternately crosslinked by amino groups. Azacalixarene derivatives containing low-molecular-weight linker moiety exhibiting an amorphous have been synthesized in previous studies; however, this study, they are crystallized substitution with...

In recent years, studies on the catabolism of organonitrogen compounds have accelerated due to the recognition that these compounds are widespread and significant environmentally. Nitrogen is the second most abundant macronutrient in cellular organisms, where it is found in major macromolecules (proteins and nucleic acids), primary metabolites (ATP and NADH), and secondary metabolites, such as ...

A series of new 2,4,6-trisubstituted-s-triazine was synthesized, assessed for antimicrobial activity, and characterized by FTIR, (1)HNMR, (13)CNMR, and elemental analysis. The tested compounds, 4d, 4g, 4h, 4k, and 4n, have shown considerable in vitro antibacterial efficacy with reference to the standard drug ciprofloxacin (MIC 3.125 μgmL(-1) against B. subtilis, E. coli, and K. pneumoniae). It ...