Abstract
From the brain tissue of Wistar rats,we purified a bioregulator, which is active at ultralow doses. Using reversed-phase HPLC, we prepared a homogenous polypeptide with a molecular weight of 4749 +/- 2 Da, which is responsible for the biological activity of the bioregulator. Using the CD spectroscopy method, we calculated the percentage of canonical elements of the secondary polypeptide structure in a solution. Using the methods of proteomics, we revealed that the structure of the investigated polypeptide was similar to the N-terminal sequence of a fragment of guanine-nucleotide binding G0-protein subunit alpha-1.
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