eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-12-22 13 4 1953 1958 10.13005/bbra/2349 16584 article Innabat A. Sartbayeva 1,2 Bakdaulet N. Usenbekov 1 Aiman B. Rysbekova 1 Kulpash M. Bulatova 3 Dauren T. Kazkeyev 1 Eldos A. Zhanbyrbaev 1 Institute of Plant Biology and Biotechnology (Almaty 050040, Kazakhstan). Al-Farabi Kazakh National University (Almaty 050040, Kazakhstan). LLP Kazakh Scientific and research Institute of Land Farming and Plant Growing, Almalybak. Composition of seed storage proteins were evaluated in rice collection materials using electrophoresis in alkaline medium at presence of SDS. Optimal conditions for protein extraction and fractionation were determined, the classification of protein components spectrum and methods for composition protein formulation was developed. It was conducted the registration and clustering of 62 rice samples, of which 5 were heterogeneous in gel electrophoresis of electropherograms. https://www.biotech-asia.org/vol13no4/electrophoretic-analysis-of-seed-proteins-of-rice-varieties/ rice; SDS-PAGE; storage protein; relative electrophoretic mobility