title: [Study of expression of desoxyribonucleases in mammalian cells by a protein renaturation method in polyacrylamide gel].
abstract: Analysis of enzymatic activity in polyacrylamide gel is based on highly effective separation of proteins by SDS-electrophoresis with their subsequent renaturation and detection of enzymatic activity. This method was used to study an expression of DNAases in culturing of cells HEK293, NIH 3T3, U937. We have found that in HEK293 cells the nucleases with molecular weights 47 and 45 kDa were expressed. The localization of DNAases in the cell nuclei was shown as well. Induction of apoptosis in HEK293 cells increase the level of p47 DNAase and causes the expression of novel 50 kDa DNAase. We suggested that those discovered DNAases could take part in apoptotic DNA degradation.
authors.affiliation: Institute of Cell Biology, NAS of Ukraine, Lviv. kit@biochem.lviv.ua
authors.forename: Iu Ia
authors.initials: IuIa
authors.lastname: Kit
authors.forename: H Iu
authors.initials: HIu
authors.lastname: Shuvaieva
authors.forename: V R
authors.initials: VR
authors.lastname: Drel'
authors.forename: N I
authors.initials: NI
authors.lastname: Ihumentseva
authors.forename: L B
authors.initials: LB
authors.lastname: Drobot
mesh_terms: D016475:3T3 Cells; D000818:Animals; D002460:Cell Line; D002467:Cell Nucleus / Q000201:enzymology; D003851:Deoxyribonucleases / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D006801:Humans; D051379:Mice; D008970:Molecular Weight; D020673:Protein Renaturation; D020298:U937 Cells
chemical_list: D003851:Deoxyribonucleases