title: Screening for human mitochondrial DNA polymorphisms with denaturing gradient gel electrophoresis.
abstract: A method involving denaturing gradient gel electrophoresis (DGGE) was developed to detect mitochondrial DNA (mtDNA) polymorphisms in human peripheral T-lymphocytes. DGGE analysis of 100- to 200-bp sequences of low melting temperature domains within the origin/membrane attachment site, NADH dehydrogenase subunit I, cytochrome c oxidase subunit I and two overlapping regions of the tRNA glycine/NADH dehydrogenase subunit III sequences was performed to identify sequence variants at these sites in a human B-cell line TK6 and T-cells from four individuals. A T --> C transition at position 16519 in the origin/membrane attachment site in the TK6 cell line and the T-cells from one individual was found. A sequence variant resulting in a G --> A transition at position 9966 in the tRNA glycine/NADH dehydrogenase III was identified in another individual. This method should be useful for the rapid screening of polymorphisms in a large number of samples.
authors.affiliation: Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge 02139, USA.
authors.forename: J S
authors.initials: JS
authors.lastname: Hanekamp
authors.forename: W G
authors.initials: WG
authors.lastname: Thilly
authors.forename: M A
authors.initials: MA
authors.lastname: Chaudhry
mesh_terms: D001483:Base Sequence; D017931:DNA Primers / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics* / Q000302:isolation & purification*; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D005820:Genetic Testing / Q000379:methods*; D014644:Genetic Variation; D006801:Humans; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D013601:T-Lymphocytes / Q000737:chemistry
chemical_list: D017931:DNA Primers; D004272:DNA, Mitochondrial