%0 Journal Article %T OBTENCI¨®N DE UN SUB-PROTEOMA DE CITOPLASMA DE UNA L¨ªNEA CELULAR DE TROFOBLASTO MEDIANTE FRACCIONAMIENTO CON DETERGENTES %A Novoa-Herr¨¢n %A Sandra Susana %A S¨¢nchez-G¨®mez %A Myriam %J Revista de la Academia Colombiana de Ciencias Exactas, F¨ªsicas y Naturales %D 2011 %I Scientific Electronic Library Online %X the differential detergent fractionation method described by rambsy and makowski in 1999, was modified using a digitonin (0.015%) buffer to permeate htr8/svneo human trophoblast cells and obtain the cytoplasm proteins in the soluble fraction, while membrane proteins were dissolved from the pellet with triton x-100 (0.5%) buffer. we obtained a reproducible membrane-free cytoplasm protein extract suitable for 2-de, by chloroform/methanol precipitation. in conclusion, the method here described is appropriate for the separation of cytoplasm sub-proteomes from cell cultures, with an optimal reproducibility and recovery to perform proteomic profile analysis by bidimensional electrophoresis. %K proteomic %K cell fractionation %K triton x-100 %K digitonine %K trophoblast %K htr8/svneo. %U http://www.scielo.org.co/scielo.php?script=sci_abstract&pid=S0370-39082011000300001&lng=en&nrm=iso&tlng=en