نتایج جستجو برای: esterases
تعداد نتایج: 2030 فیلتر نتایج به سال:
Recent studies clearly indicate that the modification of synthetic polymers with enzymes is an environmentally friendly alternative to traditional chemical methods requiring harsh conditions. Some work already performed on polyamide 6.6 (nylon 6.6), polyethyleneterephthalate (PET) and polyacrylonitrile (PAN) revealed that surface functionalization of these materials is a key requirement for an ...
Serine esterases are inhibited by dialkyl fluorinated aminophosphonate (FAP) compounds of general formula, (RO)2P(O)C(CF3)2NHS(O)2C6H5, where R = alkyl. It has been hypothesized that the active site serine of the esterase covalently attaches to the phosphoryl moiety of the FAP compound, resulting in formation of a dialkyl phosphate adduct that can age by net loss of an R-group. However, this me...
The tissues most effective in the enzymatic hydrolysis of acyl esters of p-nitrophenol by tissue extracts of the rat and dog were the liver, lung, pancreas, renal cortex, and testis; in the dog tracheal and vesical mucosae were also esterase-rich and the lens had appreciable activity. Esterase was at low concentration in the tissues of the rat for 4 and 5 days after birth, but an increase to ad...
The inhibition of rat-brain acetylcholinesterase with Sevin was shown to be partly reversible. The rate of progression of the irreversible inhibition is extremely slow and follows the kinetics of a unimolecular reaction, with K = 3.65 • 1 0 3 m i n 1 and t 0.5 190 minutes. The reversible inhibition of the enzyme was found to be of competitive nature. The dissociation constant of E —I (K\) was d...
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