نتایج جستجو برای: guanidine hydrochloride
تعداد نتایج: 46790 فیلتر نتایج به سال:
The influence of protein conformation upon the circular dichroism (CD) bands of two peroxidase isoenzymes (Al and C) was investigated by using guanidine hydrochloride and other denaturing agents. In all four proteins, guanidine hydrochloride markedly reduces the Zl-nm CD band, indicating disruption of the ordered peptide backbone conformation. Similarly guanidine hydrochloride greatly diminishe...
The guanidine hydrochloride induced unfolding of the major fraction of ovalbumin (i.e. A1 which contains two phosphate groups and constitutes about 77% of the total protein) was investigated systematically by difference spectran and viscosity measurements. As judged by the intrinsic viscosity (3.9 ml/g), the native protein conformation is compact and globular. Difference spectral results showed...
1. 1 cc. of 0.001 M ferricyanide, tetrathionate, or p-chloromercuribenzoate is required to abolish the SH groups of 10 mg. of denatured egg albumin in guanidine hydrochloride or Duponol PC solution. Both the nitroprusside test and the ferricyanide reduction test are used to show that the SH groups have been abolished. 2. 1 cc. of 0.001 M ferrocyanide is formed when ferricyanide is added to 10 m...
a highly efficient protocol has been developed for the synthesis of 2-hydrazolyl-4-thiazolidinone derivatives installing a one pot three component coupling reaction of an aromatic aldehyde, thiosemicarbazide and maleic anhydride using guanidine hydrochloride as highly inexpensive and environmentally friendly catalyst under solvent free condition at 1200c with good to excellent yields, it offers...
A Highly efficient protocol has been developed for the synthesis of 2-hydrazolyl-4-thiazolidinone derivatives installing a one pot three component coupling reaction of an aromatic aldehyde, thiosemicarbazide and maleic anhydride using guanidine hydrochloride as highly inexpensive and environmentally friendly catalyst under solvent free condition at 1200C with good to excellent yields, It offers...
MRL-1237, [1-(4-fluorophenyl)-2-(4-imino-1,4-dihydropyridin-1-yl) methylbenzimidazole hydrochloride], is a potent and selective inhibitor of the replication of enteroviruses. To reveal the target molecule of MRL-1237 in viral replication, we selected spontaneous MRL-1237-resistant poliovirus mutants. Of 15 MRL-1237-resistant mutants obtained, 14 were cross-resistant to guanidine hydrochloride (...
cDNA fragments representing the region in polypeptide 2C containing mutations in a guanidine-resistant or -dependent mutant were cloned into the wild-type background of an infectious clone. Transfection of COS-1 cells with these plasmids yielded viruses that were either completely resistant to 2.0 mM guanidine hydrochloride or dependent on this concentration of drug for growth.
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