[Structural and thermodynasmic aspects of the packing of collagen fibrils].

Studies devoted to the analysis of the mechanisms of packing of collagen fibrils and the effect of the macromolecular structure and the physicochemical parameters of medium on the packing are reviewed.

[Total protein and RNA biosynthesis in the liver cells of the long-tailed suslik Citellus undulatus in different functional states].

The synthesis of proteins and RNA have been studied by means of labeled precursors of 14C-amino acids and 14C-orotic acid in liver cells of hibernating, arousing and active ground squirrels (Citellus undulatus). The investigations conducted testify to the possibility of CHI-inhibited synthesis of proteins in liver cells of hibernating ground squirrels, which occurs, apparently, on preexisting polyribosomes. The low level of protein biosynthesis in this state is stipulated not only by the Arrhenius dependence, but by the dissociation of polyribosomes into monosomes as well.