The effects of amino acid deprivation and treatment with amino alcohols upon the growth, viability, and susceptibility to methotrexate (MTX) cytotoxicity were examined in BALB/3T3 cells and their virally transformed counterparts, SV-T2 cells. Cells were deprived of either histidine or
Journal of molecular biology, 409(2), 159-176 (2011-03-23)
The single tyrosyl-tRNA synthetase (TyrRS) gene in trypanosomatid genomes codes for a protein that is twice the length of TyrRS from virtually all other organisms. Each half of the double-length TyrRS contains a catalytic domain and an anticodon-binding domain; however
We report here on the stereospecificity observed in the action of horseradish peroxidase (HRPC) on monophenol and diphenol substrates. Several enantiomers of monophenols and o-diphenols were assayed: L-tyrosinol, D-tyrosinol, L-tyrosine, DL-tyrosine, D-tyrosine, L-dopa, DL-dopa, D-dopa, L-alpha-methyldopa, DL-alpha-methyldopa, DL-adrenaline, D-adrenaline, L-isoproterenol
Journal of molecular biology, 173(4), 477-485 (1984-03-15)
Crystalline complexes of tyrosyl-tRNA synthetase from Bacillus stearothermophilus were prepared with adenosine, AMP, ATP and PPi, all in the presence of tyrosinol, which binds strongly to the tyrosine binding site but cannot be adenylated by ATP. The hydrolysis of ATP
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