[Immunocytochemical localization of tryptophanyl-tRNA-synthetase in a line of bovine kidney cells and in sublines with elevated enzyme levels].

Intracellular localization of tryptophanyl-tRNA synthetase (E. C. 6.1.1.2) has been studied immunocytochemically using monospecific antibodies in cultured bovine kidney cells (strain MDBK) and in substrains with elevated enzyme levels. Both light and electron microscopy were used and native or detergent-treated cells were examined. The product of cytochemical reaction was revealed on free polyribosomes, polyribosomes attached to membranes of granular endoplasmic reticulum, on cytofilaments and in the nucleus as well.