Effect of proton-electron irradiation on the strength of a glass-reinforced plastic and its components

The action of protons and electrons on the properties of glass strands under vacuum conditions has been experimentally investigated. The experimental procedure is described. The effects of irradiation, strain rate, and reduced temperature and pressure on the properties of glass reinforcement and glass-reinforced plastics are estimated.Institute of Mechanics, Academy of Sciences of the Ukrainian SSR, Kiev; Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Mekhanika Polimerov, No. 4, pp. 755–760, July–August, 1970.     

Study of the functional role of the extensin-like proteins of the cotton plant

The action on myeloma X Ad8. 653 of extensin-like proteins isolated from a suspension culture and from two-day shoots of the cotton plant has been studied. A suppression of the inclusion of [₃H]thymidine with an increase in the concentration of protein was found. The presence of extensin-like proteins in cotton protoplasts has been revealed by cross-immunochemical analysis.Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 294–296, March–April, 1995. Original article submitted November 7, 1994.     

Study of the membrane proteins of the cotton plant using monoclonal antibodies

The total membranes from cottonplant shoots have been used as the antigenic material for obtaining monoclonal antibodies (mcABs). Eleven stable hybrids producing mcABs to components of the membrane proteins have been selected. Antibodies to various membrane fractions and to fractions of lectin-like proteins have been revealed. Structural characteristics of the carbohydrate components of cottonplant glycoproteins have been determined by cross-immunochemical analysis.A. S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Fax 627071. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 83–87, January–February, 1994.     

Action of cottonplant glycoproteins on the proliferative activity of cells

A mitogenic action of the total (LLPs) and lactose-specific (LLPs-1) lectin-like proteins on the proliferation of lymphocytes and of myeloma cells in culture has been found. A dose-dependent influence of the LLPs and extensin-like proteins (ELPs) on the inclusion of³H proteins in the myeloma cells, including an antimitotic effect of the ELPs with an increase in the protein dose, has been shown; the ELPs exert an analogous action on K–562 tumor cells of human erythroblasts. The nature of the biological action of the LLPs and ELPs is discussed in connection with features of the structure of the carbohydrate fragments of the composition of the glycoproteins.A. S. Sadykov Institute of Bioorganic Chemistry of the Academy of Sciences, Republic of Uzbekistan, Tashkent, fax (3712) 62 70 71. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 912–915, November–December, 1996. Original article submitted May 20, 1996.