[Novel view of the structure of the non-catalytic N-terminal region of ATP-dependent LonA proteases].

ATP-Dependent Lon proteases are components of the protein quality control system, which maintains a keeping of cellular proteome. Lon family consists of two subfamilies A and B, differing in subunit architecture and intracellular location. The reinterpretation of the domain organization of the non-catalytic N-terminal region of ATP-dependent LonA proteases is proposed.

[Isolation and determination of activity of IgA1 protease from Neisseria meningitidis].

A method of the isolation and purification of IgAl protease from a culture of Neisseria meningitidis serogroup A has been developed. Three inactivated intermediates of the production of the meningococcal vaccine, a culture liquid, as well as a supernatant and sediment obtained by the precipitation of bacterial cells by cetavlon, served as a starting material. The purity of IgA1 protease was determined by SDS-PAGE.

[Molecular chaperones].

Chaperones are unique remodeling proteins that participate in a great number of intracellular processes and are involved in the correction of protein structure, the prevention of the aggregation of misfolded proteins, the destruction of protein aggregates, and also the unfolding of native protein targets for their translocation across a membrane. In addition to this, Chaperones assist in the dismantling of active oligomers into inactive unfolded monomers for their subsequent photolytic degradation and the assembly of folded subunits into protein assemblies and specific complexes. Data on the structure and functioning of molecular chaperones from five basic families are summarized in the review.

[The course and treatment and efficiency of surgical treatment for disseminated pulmonary tuberculosis].

Chemotherapy for disseminated tuberculosis by the schemes regulated by the Order "On Improvement of Tuberculosis-Controlling Measures in the Russian Federation" issued by the Ministry of Health of the Russian Federation under No. 109 on March 21, 2003, leads to the regression of intoxication syndrome and the normalization of general blood analysis parameters in most patients, provides bacterial excretion cessation in 72.7% of the patients and decay cavity closure in 53.

[ATP-dependent proteases and proteolytic complexes involved into intracellular protein degradation].

The review characterized the main enzymatic systems of selective proteolysis responsible for maintenance of intracellular proteome in prokaryotes, eukaryotes and archea. The features of proteolytic components of the ATP-dependent proteases as well as similarity and diversity of their regulatory AAA(+)-ATPases are discussed.