TY JOUR TI CONFORMATIONAL PROPERTIES AND ELECTRONÄ°C STRUCTURE OF ANTÄ°TUMOR AGENT TYR-SER-LEU KW antitumor agent KW tripeptide KW conformation KW molecular mechanics method KW quant-chemical calculations JO Russian Journal of Biological Physics and Chemisrty AU Agaeva, G.A. AU Agaeva, U.T. AU Godjaev, N.M. PY 2023 IS 8 PB Federal State Educational Institution of Higher Education Sevastopol State University