[The self-rating of life quality by workers of metal-processing industry].

The cross-sectional study of subjective assessment of quality of life of 300 employees of main professions of metalworking industrial production working in harmful labor environment (classes 3.1-3.4) was carried out using validated Russian version of the WHO QOL-BREF questionnaire.

[The role of nutrigenetics and nutrigenomics in the prophylaxis of chronic non-communicable diseases].

Over the past several decades there has been an increase in the number of chronic noncommunicable diseases worldwide largely due to changes in diet and lifestyle, as well as exposure to adverse environmental factors. The so-called omics technologies (genomic, proteomic, metabolomic and transcriptomic) are used as tools for comprehensive analysis and monitoring of human health. Currently, genomic and post-genomic technologies are used to study the effects of various nutrients on human health.

Agrobacterial, Single-Stranded DNA-Binding Protein VirE2 and Its Complexes.

VirE2 from is a single-stranded (ss) DNA-binding protein involved in delivery of ssT-DNA (single-stranded transfer DNA) from the agrobacterial Ti plasmid into the eukaryotic cell nucleus. The crystallized part of VirE2 was studied by X-ray diffraction, and the noncrystallized parts of the C- (40 amino acid residues [aars]) and N- (111 aars) termini of the protein, which are presumably disordered, were evaluated by computational methods. We did a molecular dynamics simulation of VirE2 without VirE1 and observed no large changes in domain orientation.

Computer evaluation of VirE2 protein complexes for ssDNA transfer ability.

The single-stranded transfer DNA from the Ti plasmid of the soil bacteria Agrobacterium nonspecifically integrates into the plant chromosome and is inherited at subsequent cell divisions. How it is transferred across host membranes is unknown, but it is believed that VirE2 proteins form a membrane-spanning pore or channel in a lipid bilayer and possibly mediate the delivery of the single-stranded transfer DNA-VirD2-VirE2 complex to the plant cell chromosomes. The aim of this work was to perform a computer simulation of VirE2's pore-forming capacity and an evaluation of constructed VirE2 complexes.

VirE2-dependent pores for ssDNA transfer across artificial and cell membranes.

The transfer of single-stranded (ss) T-DNA from soil bacteria of the genus Agrobacterium with the help of the VirE2 protein, which possibly mediates the delivery of ss-T-DNA across the cell membrane, was demonstrated earlier, but how VirE2 participates in ssDNA transfer across artificial and natural membranes is not known. Using computational methods, we reconstructed model structures composed of two and four VirE2 proteins and showed by the MOLE program the formation of pores with channel diameters of 1.2-1.