[The use of RNAse A-colloidal gold complexes for research on RNA-containing cell structures: the effect of different factors on the specificity of the labelling].

Effects of various factors on the specificity and intensity of labelling of RNA-containing structures on the ultrathin sections by RNase A--colloidal gold complexes were studied. The data obtained show that at the optimal choice and standard conditions of labelling the reproducibility of the results is achieved up to 10-20%. It makes it possible to use RNase A-gold method for the quantitative analysis of RNA distribution in the cells at various stages of cell cycle.