[Effect of brain cytosol proteins of embryonal and adult animals on RNA-polymerase activity of isolated brain nuclei]. / Vliianie belkov tsitozolia mozga émbrionov i vroslykh zhivotnykh na RNK-polimeraznuiu aktivnost' izolirovannykh iader mozga.

Cytosol and its fractions obtained by the precipitation with ammonium sulphate and ion-exchange chromatography have been studied for their effect on the RNA-polymerase activity of isolated nuclei. We observed the discrepancies in the action of total cytosol of embryonal, newborn or adult animals on the label's incorporation in RNA. It was found that some fractions increased DNA-polymerase activity of isolated nuclei in cattle embryonal cytosol. The same fractions obtained from adult cytosol did not act in such a way. It was found that most fractions obtained from cytosol of adult brain inhibited the RNA-polymerase activity of brain nuclei.

[Characteristics of the protein spectrum of bovine amniotic fluid]. / Osobennosti belkovogo spektra amnioticheskoi zhidkosti korov.

When studying peculiarities of the protein composition of amniotic fluid in cows a group of proteins with molecular mass below 60 kDa was found. There are no such proteins in blood of those animals. It is supposed that these proteins can take active part in embryogenesis processes.

[Features of the biosynthesis of immunoglobulin G peculiar to the growth process]. / Osobennosti biosinteza immunoglobulina G, kharskternogo dlia protsessov rosta.

It is established that with partial hepatectomy, Shvets leukosis and hepatoma RS-1 the biosynthesis intensity of rat blood serum proteins producing aggregates in the acid medium is considerably higher than that of other serum proteins, the incorporation of the radioactive precursor into immunoglobulin G peculiar to intensive normal and malignant growth being particularly intensive. During liver regeneration as well as in malignant growth specific radioactivity of immunoglobulin G peculiar to the growth processes is three and five times, respectively, as high as this value for blood serum soluble proteins and proteins of alpha-globulin fractions.

[Role of acid anion in formation of low-soluble aggregates of immunoglobulin G characteristic of malignant growth]. / Rol' aniona kisloty v obrazovanii malorastvorimykh agregatov immunoglobulina G, kharadternogo dlia zlokachestvennogo rosta.

The acid medium favour the formation of low-soluble aggregates in the cancer patient blood serum. An anion of the acid utilized for creation of the aggregate-forming medium is involved into composition of the agregates. The elementary quantitative analysis of such aggregates showed that the amount of the incorporating anion is in inverse dependence on its affinity for proteins. The anion is established to participate at the stage of the low-soluble complex formation. A schematic model is suggested for low-soluble aggregates formed in the cancer patient blood cerum under the effect of the acid medium.