TY JOUR TI Structural organization of the GLY-PRO-ARG-PRO molecule KW conformation KW tetrapeptide KW molecule KW analogue KW structure JO Russian Journal of Biological Physics and Chemisrty AU Ismailova, L.I. AU Abbasli, R.M. AU Akhmedov, N.A. PY 2021 IS 6 PB Federal State Educational Institution of Higher Education Sevastopol State University