Zhonghua yi xue za zhi · 2001
[Five de novo forms of polymorphisms first found in Chinese mitochondrial genome].
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Qi Y, Liu Z, Jiang S
Аннотация
OBJECTIVE: To know more polymorphic changes in mitochondrial genome in Chinese.
METHOD: PCR and sequencing of the 16,569 bp long mtDNA of the white blood cell DNA were conducted on 4 Chinese children, 3 with Rett syndrome and one normal. PCR and Restriction endonuclease digest, including artificial created restriction site (ACRS), were done on 100 normal controls in the light of the 7 newly discovered single base substitution sites.
RESULT: Five point mutations, C298T, C638G, C3206T, A6323G and C6326T, neither appearing in MITOMAP database nor reported in literature before, were identified in Chinese people with the frequencies of 17.65%, 32.04%, 62.77%, 33.33% and 32.26%. Other two point mutations, C737T and C9860T, were found only in patients with Rett syndrome.
CONCLUSION: The five sequence changes newly found in mitochondrial genome of Chinese are de novo kinds of polymorphism.
METHOD: PCR and sequencing of the 16,569 bp long mtDNA of the white blood cell DNA were conducted on 4 Chinese children, 3 with Rett syndrome and one normal. PCR and Restriction endonuclease digest, including artificial created restriction site (ACRS), were done on 100 normal controls in the light of the 7 newly discovered single base substitution sites.
RESULT: Five point mutations, C298T, C638G, C3206T, A6323G and C6326T, neither appearing in MITOMAP database nor reported in literature before, were identified in Chinese people with the frequencies of 17.65%, 32.04%, 62.77%, 33.33% and 32.26%. Other two point mutations, C737T and C9860T, were found only in patients with Rett syndrome.
CONCLUSION: The five sequence changes newly found in mitochondrial genome of Chinese are de novo kinds of polymorphism.