Editorial 7
General Biology  
Zeleev R.M. A Version of Biological Axiomatics and Its Potential for Biodiversity Des­cription 8
Biochemistry and Molecular Biology  
Anikeev O.E., Sabitova A.K., Lisitsyna A.R., Kravtsova O.A. Y-Chromosome Pool Variability in the Population of Volga Tatars 26
Gorin A.O., Abramova Z.I. Blockade of C4-Demethylation Step in Cholesterol Biosynthesis Sensitizes Cancer Cells to Epidermal Growth Factor Receptor Inhibitors 33
Sabirova A.R., Toimentseva A.A., Sharipova M.R. Bacilli Gene Regulation 42
Danilova Yu.V., Balaban N.P., Shamsutdinov T.R., Sharipova M.R. A Comparative Analysis of Bacillus pumilus Glutamyl Endopeptidase Produced by Bacillus subtilis Recombinant Strain at Different Growth Phases 55
Mironov V.A., Filippov A.V., Shirshikov F.V., Cherepnev G.V., Kalacheva N.V. The Effect of Binase on the Necrosis and Apoptosis of Macrophages in an Oxidative Stress Model 66
Glazunova E.G., Yarullina D.R., Vasilev I.Yu., Gavrilova M.N., Ilinskaya O.N. Effects of Cultivation Conditions on Pigment Biosynthesis in Actinobacteria Agreia 77
Zoophysiology  
Mitrukhina O.B., Suchkov D.S., Sitdikova G.F., Khazipov R.N., Minlebaev M.G. Frequency Coding in the Developing Somatosensory Cortex 85
Biotechnology  
Gabitov R.A., Mukhametshina R.T., Cabrera Fuentes H.A., Bagaeva Т.V. Detection and Identification of Latent Infections of Potato Tubers 97
Akhmetova A.I., Mukhametzyanova A.D., Sharipova M.R. Microbial Phytases as a Basis for New Technologies in Animal Feeding 103
Garmonov S.Yu., Akhmetova L.Т., Salakhov I.A., Zevakov I.V., Ismailova R.N., Irtuganova E.A. Determination of Vitamin Composition of Biologically Active Substances Based on Beebread by HPLC Method 111
Developmental and Functional Morphology  
Golikov A.V., Sabirov R.M., Lyubin P.A. New Data on Gonatus fabricii (Cephalopoda, Teuthida) Distribution and Reproductive Biology in the Western Sector of Russian Arctic 118
Chernova E.E., Zabotin Ya.I., Golubev A.I. Ultrastructure of Gametes and Their Formation in the Acoel Turbellarian Convoluta convoluta (Acoela) 129
Ecology  
Karmazina I.O., Sakhnov V.V., Shulaev N.V. Estimation of the Influence of Xylophages on the Pine Afforestations Damaged by Forest Fires in Mariy Chodra National Park (Mari El Republic) 139
Nikolaeva T.G. Ecological Characteristics of the Weevil Fauna (Coleoptera, Curculionoidea) of Agroecosystems under Adaptive-Landscape Farming in the Northern Forest-Steppe of the Volga Upland 156
Biological Diversity  
Dubrovnaya S.A., Mavlyudova L.U. A Variety of Life Forms of Hypericum perforatum L. in the Republic of Tatarstan 170
Gorshkov Yu.A., Gorshkov D.Yu. Some Approaches to Biodiversity Conservation in Conditions of the Great Volga-Kama Biosphere Reserve 182
Khabibullina G.I., Yakovlev V.A. Longitudinal Distribution of the Zoobenthos in the Mesha and the Kazanka Rivers (Republic of Tatarstan, Russia) 190
Kadirov A.G., Shulaev N.V. The Fauna of Water Beetles in the Republic of Tatarstan (Dytiscidae, Gyrinidae, Noteridae, Haliplidae, Hydrophilidae, Helophoridae, Hydrochidae, Georissidae, Elmidae) 198
Demina G.V., Khaziev R.Sh., Sedova S.A. The Flora of the Native Meadow Area in the Botanical Garden of Kazan State Medical University 206
Yakovlev V.A., Yakovleva A.V. Cumaceans (Crustacea: Cumacea) in the Upper Reaches of the Кuybyshev Reservoir (Russia) 216
Ichthyology  
Kuznetsov V.A. Naturalization of Invasive Species: Common Kilka Clupeonella cultriventris (Nordmann, 1840) in the Volga Reaches of the Kuybyshev Reservoir 228
Bioinformatics and Molecular Modeling  
Ayupov R.Kh., Akberova N.I., Tarasov D.S. The Interaction of a Pyridoxine Derivative with the Active Site of Acetylcholinesterase 234
Ri M.T. Mathematical Modeling and Analysis of Escherichia coli Gene Network 247