“…An assay for aspartate transcarbamylase was reported using a chromophoric nucleotide analog, methylthioguanosine, and compared to other methods (90). Electrogenerated buckministerfullerene anions were studied and their UV and near-IR spectra were reported (91). Quantitation of target DNA on blots was accomplished using a tetrazolium salt, 3-(4,5dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide as a substitute for nitroblue tetrazolium (92).…”