Conditions for Single-Strand Conformation Polymorphism (SSCP) Analysis of BRCA1 Gene Using an Automated Electrophoresis Unit
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Berta Campos
Abstract
The single-strand conformation polymorphism procedure has been applied in routine testing for hereditary diseases and cancer. However, temperature, running time, gel composition, fragment length, etc. can influence its sensitivity. Mutation detection in the clinical setting depends on the development of automated technology, especially for large genes such as the breast cancer gene BRCA1. We analysed DNA samples with BRCA1 mutations in an automated system (GenePhor System; Amersham-Pharmacia Biotech, Uppsala, Sweden). The concentrations of DNA template and PCR primers, the effect of chilling after denaturation, and the temperature and time of the electrophoresis were investigated. All band-shifts were detected by electrophoresis at 5 °C for 2 h 15 min. Concentrations of DNA and samples used in the PCR did not affect the SSCP pattern, but chilling the PCR product in ice after denaturation was required. The type and position of mutation in the fragments did not influence the probability of a mobility shift, although SSCP analysis was more sensitive for fragments shorter than 350 bp. This automated SSCP method meets the requirements of fast turnaround and sensitivity and can be readily adapted to the screening of large genes such as BRCA1.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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- SIBioC 2001 33rd National Congress of the Italian Society of Clinical Biochemistry and Clinical Molecular Biology
- CCLM: The Near Future
- Granulocyte-Colony Stimulating Factor and Macrophage-Colony Stimulating Factor in Patients with Non-Small-Cell Lung Cancer
- Circulating Matrix Metalloproteinases and Their Inhibitors in Premature Coronary Atherosclerosis
- Real-Time Quantitative Reverse Transcriptase-Polymerase Chain Reaction (RT-PCR) for the Measurement of Prostate-Specific Antigen mRNA in the Peripheral Blood of Patients with Prostate Carcinoma Using the TaqManTM Detection System
- Serum Cardiac Troponin I after Conventional and Minimal Invasive Coronary Artery Bypass Surgery
- Improvement of the Quantitative Method for Glucose Determination Using Hexokinase and Glucose 6-Phosphate Dehydrogenase
- Conditions for Single-Strand Conformation Polymorphism (SSCP) Analysis of BRCA1 Gene Using an Automated Electrophoresis Unit
- Discrepancies between Apolipoprotein E Phenotyping and Genotyping in the Elderly
- Markers of Bone Turnover in Postmenopausal Women Receiving Hormone Replacement Therapy
- Reference Intervals for the Markers of Proteinuria with a Standardised Bed-Rest Collection of Urine
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