title: Single strand conformation polymorphism analysis of ras oncogene by capillary electrophoresis with laser-induced fluorescence detector.
abstract: Single strand conformation polymorphism (SSCP) analysis of the N-ras oncogene was achieved by capillary electrophoresis with a laser-induced fluorescence detector (CE-LIF) using methylcellulose as a molecular sieving agent. The PCR-amplified N-ras oncogene, which is known to have a point mutation at codon 61 in the neuroblastoma, was investigated by CE-LIF combined with SSCP (SSCP-CE-LIF). A mixture of wild- and mutant-type single strand DNA fragments (103 bp) of the N-ras oncogene was separated by buffer solution containing 1.0% methylcellulose and 0.2 microM fluorescent dye (YO-PRO-1) at 25 degrees C. The SSCP-CE-LIF technique gave good resolution for wild- and mutant-type single strand DNA fragments with separation completed within 7 min. SSCP analysis using a CE system with a LIF detector was successfully applied to the detection of the one point mutation on the N-ras oncogene.
authors.affiliation: Department of Functional Molecular Chemistry, Kobe Pharmaceutical University, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Nishimura
authors.forename: M
authors.initials: M
authors.lastname: Tsuhako
mesh_terms: D001483:Base Sequence; D017931:DNA Primers; D004277:DNA, Single-Stranded / Q000302:isolation & purification; D019075:Electrophoresis, Capillary / Q000379:methods*; D011905:Genes, ras; D018807:Polymorphism, Single-Stranded Conformational; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013696:Temperature
chemical_list: D017931:DNA Primers; D004277:DNA, Single-Stranded