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Determination of Repeat Numbers of (CA)n in Mitochondrial D-loop using Polymerase Chain Reaction-single Strand Conformational Polymorphism (PCR-SSCP)

Kim, Joo Young 1 KIM, DAE-KWANG 2

1영남대학교 의과대학 해부학교실
2계명대학교

Accredited

ABSTRACT

Polymerase chain reaction-single strand conformational polymorphism (PCR-SSCP) analysis is a kind of sensitive mutation detection method that has been usually used in field of medical genetics. A single DNA strand with a mutation or nucleotide polymorphism has a different conformation from its wild-type counterpart, and these conformational differences result in different electrophoretic mobility. In previous study of mitochondrial microsatellite instability in 50 uterine leiomyomas, PCR-SSCP showed 4 types of band mobility at (CA)n of the mitochondrial D-loop. In type 1 and 4, positions of the lower single stand of both were same but those of upper strand were different. In sequencing analysis, repeat number of (CA)n in type 1 was 4, 5 in type 2, 6 in type 3, and 4 in type 4, respectively. Without using expensive sequencing analysis, PCR-SSCP method can be used to detect the repeat number of (CA)n in mitochondrial D-loop.

Citation status

* References for papers published after 2023 are currently being built.