[The identification of calmodulin in the cytoskeletal fraction of the olfactory mucosa of vertebrates].

Calmodulin was detected in the cytoskeleton fraction of the olfactory tissue of vertebrates (pig, rat), identified by electrophoretical mobility and by immunoblotting. The approximate content of calmodulin in the cytoskeleton fraction was about 23% relative to all the proteins revealed on the electrophoregram. Another protein was detected in the same experiments having the same molecular weight as calmodulin and revealing immunospecific properties.

[Ca2+-protease--an enzyme of the metabolism of cytoskeletal proteins in the olfactory membrane of vertebrates].

Two forms of Ca(++)-activated protease (calpain I and calpain II) associated with an endogenous inhibitor (calpastatin) were detected in a cytosolic fraction of the olfactory tissue of vertebrates (pig, rat). Using ion exchange chromatography on DEAE-cellulose column, calpain I is divided into 2 peaks (eluting by 0.07-0.

[Biological characteristics of Streptococcus pneumoniae strains isolated from children with pneumococcal diseases].

The biological properties of 97 S. pneumoniae strains isolated from 92 children with purulent meningitides, meningoencephalitides, pneumonia and otitis, hospitalized at the Leningrad Research Institute of Childhood Infections, were studied. The data obtained in this investigation were indicative of the formation of atypical forms of pneumococci (R-forms, unbalanced growth forms and L-forms) in all clinical forms of pneumococcal infection in children.