Detection of mitochondrial DNA mutations by temporal temperature gradient gel electrophoresis.

Quantification of mitochondrial DNA heteroplasmy by temporal temperature gradient gel electrophoresis.

Using a Temperature Gradient against the Time in Polyacrylamide Gel Electrophoresis May Eliminate the Need for Stacking Gels

Background and Objectives: Making stacking gels for polyacrylamide gels in the laboratory by conventional methods is laborious and time consuming. Considering the role of temperature in polyacrylamide gels with respect to electrical resistance and viscosity, we assumed that decreasing the temperature would cause an increase in electrical resistance and viscosity.  Ultimately, a downward tempera...

Detection of mutations in GC-rich DNA by bisulphite denaturing gradient gel electrophoresis.

Denaturing gradient gel electrophoresis (DGGE) in combination with PCR and 'GC-clamping' has proven highly efficient as a method for detection of DNA sequence differences. Due to strand dissociation phenomena, however, its use has been limited to the analysis of sequences with a relatively low content of GC pairs. This paper describes how treatment of template DNA with sodium bisulphite drastic...

Detection of mitochondrial DNA mutations in the tumor and cerebrospinal fluid of medulloblastoma patients.

Medulloblastoma is the most common malignant brain tumor in children. Although the prognosis has improved considerably, leptomeningeal spread of the tumor remains a significantly negative predictor of survival. Mitochondrial DNA (mtDNA) mutations have been detected in many types of human tumors but not in medulloblastomas. Using temporal temperature gradient gel electrophoresis, we have analyze...

Temperature-programmed capillary electrophoresis for detection of DNA point mutations.

A method for unambiguous determination of point mutations in genomic DNA, based on electrophoresis in thin capillaries, is reported here. The method is based on the principle of temperature gradient gel electrophoresis (TGGE), a variant of denaturing gradient gel electrophoresis (DGGE), and exploits the differential melting of mutant and wild-type PCR-amplified DNA fragments during electrophore...