Rapid Mitochondrial DNA Isolation Method for Direct Sequencing

Author(s):  
Wilber Quispe-Tintaya ◽  
Ryan R. White ◽  
Vasily N. Popov ◽  
Jan Vijg ◽  
Alexander Y. Maslov
2021 ◽  
Author(s):  
Bruno Marçal Repolês ◽  
Choco Michael Gorospe ◽  
Phong Tran ◽  
Anna Karin Nilsson ◽  
Paulina H. Wanrooij

AbstractThe integrity of mitochondrial DNA (mtDNA) isolated from solid tissues is critical for analyses such as long-range PCR. We show that a commonly-used DNA isolation procedure preferentially introduces strand breaks into the mtDNA extracted from the skeletal muscle of aged mice, while mtDNA from adult animals is less affected. We present a comparison of mtDNA isolation methods and identify one that avoids this biased loss of muscle mtDNA integrity. Our results highlight the importance of a careful choice of mtDNA isolation method and serve as a resource to researchers planning analysis of mtDNA isolated from solid tissues.


2017 ◽  
Vol 158 (12) ◽  
pp. 468-471 ◽  
Author(s):  
Anett Fekete ◽  
Kinga Hadzsiev ◽  
Judit Bene ◽  
Antónia Nászai ◽  
Petra Mátyás ◽  
...  

Abstract: This article presents the case of a 62-year-old mother and her 41-year-old daughter, who have had severe neurological symptoms for a few decades. After a long investigation period the definite diagnosis of MERRF syndrome was confirmed. After DNA isolation from our patient’s blood sample we examined the mitochondrial DNA with direct sequencing. An adenine-guanine substitution was detected in the tRNA gene at position 8344, based on the sequence ferogram the heteroplasmy was over 90%. The clinical phenotype was not clearly characteristic for MERRF syndrome, adult-onset and lipomas are not typical in this disease. In our case report we would like to draw attention to the great phenotypic variation of the mitochondrial diseases and we emphasize that these disorders are underdiagnosed in Hungary even today. Orv. Hetil., 2017, 158(12), 468–471.


1987 ◽  
Vol 15 (2) ◽  
pp. 529-541 ◽  
Author(s):  
Lisa A. Wrischnik ◽  
Russell G. Higuchi ◽  
Mark Stoneking ◽  
Henry A. Erlich ◽  
Norman Arnheim ◽  
...  

1999 ◽  
Vol 65 (6) ◽  
pp. 2307-2311 ◽  
Author(s):  
R. R. de Moraes ◽  
J. E. Maruniak ◽  
J. E. Funderburk

ABSTRACT Two methods, phenol-ether and magnetic capture-hybridization (MCH), were developed and compared with regard to their sensitivities and abilities to extract the DNA of the insect baculovirus Anticarsia gemmatalis nucleopolyhedrovirus (AgMNPV) from soil and to produce DNA amplifiable by PCR. Laboratory experiments were performed with 0.25 g of autoclaved soil inoculated with different viral concentrations to optimize both methods of baculovirus DNA extraction and to determine their sensitivities. Both procedures produced amplifiable DNA; however, the MCH method was 100-fold more sensitive than the phenol-ether procedure. The removal of PCR inhibitors from the soil appeared to be complete when MCH was used as the viral DNA isolation method, because undiluted aliquots of the DNA preparations could be amplified by PCR. The phenol-ether procedure probably did not completely remove PCR inhibitors from the soil, since PCR products were observed only when the AgMNPV DNA preparations were diluted 10- or 100-fold. AgMNPV DNA was detected in field-collected soil samples from 15 to 180 days after virus application when the MCH procedure to isolate DNA was coupled with PCR amplification of the polyhedrin region.


1999 ◽  
Vol 9 (2) ◽  
pp. 111-114 ◽  
Author(s):  
Benjamin Kaufman ◽  
Stacy Richards ◽  
David A Dierig

2011 ◽  
Vol 86 (3) ◽  
pp. 310-312 ◽  
Author(s):  
Jeff A. Brady ◽  
Jennifer B. Faske ◽  
Jessica M. Castañeda-Gill ◽  
Jonathan L. King ◽  
Forrest L. Mitchell

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