nuclear matrix proteins ( defined as the nuclear proteins which were highly enriched in an insoluble fraction following extraction of lipids , loosely bound proteins , and nucleic acids ) from mock- and sv40-infected cells were identified by two-dimensional polyacrylamide gel electrophoresis , consisting of nonequilibrium ph gradients in the first dimension and sodium dodecyl sulfate gel electrophoresis in the second dimension .
C0133195
nuclear matrix proteins
C0028589
nuclear proteins