Assessment for Melting Temperature Measurement of Nucleic Acid by HRM

High resolution melting (HRM), with a high sensitivity to distinguish the nucleic acid species with small variations, has been widely applied in the mutation scanning, methylation analysis, and genotyping. For the aim of extending HRM for the evaluation of thermal stability of nucleic acid secondary...

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Main Authors: Jing Wang, Xiaoming Pan, Xingguo Liang
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Analytical Methods in Chemistry
Online Access:http://dx.doi.org/10.1155/2016/5318935
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author Jing Wang
Xiaoming Pan
Xingguo Liang
author_facet Jing Wang
Xiaoming Pan
Xingguo Liang
author_sort Jing Wang
collection DOAJ
description High resolution melting (HRM), with a high sensitivity to distinguish the nucleic acid species with small variations, has been widely applied in the mutation scanning, methylation analysis, and genotyping. For the aim of extending HRM for the evaluation of thermal stability of nucleic acid secondary structures on sequence dependence, we investigated effects of the dye of EvaGreen, metal ions, and impurities (such as dNTPs) on melting temperature (Tm) measurement by HRM. The accuracy of HRM was assessed as compared with UV melting method, and little difference between the two methods was found when the DNA Tm was higher than 40°C. Both insufficiency and excessiveness of EvaGreen were found to give rise to a little bit higher Tm, showing that the proportion of dye should be considered for precise Tm measurement of nucleic acids. Finally, HRM method was also successfully used to measure Tms of DNA triplex, hairpin, and RNA duplex. In conclusion, HRM can be applied in the evaluation of thermal stability of nucleic acid (DNA or RNA) or secondary structural elements (even when dNTPs are present).
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institution Kabale University
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spelling doaj-art-499dc971bcf649f986492a7559fde6a22025-02-03T06:13:08ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732016-01-01201610.1155/2016/53189355318935Assessment for Melting Temperature Measurement of Nucleic Acid by HRMJing Wang0Xiaoming Pan1Xingguo Liang2College of Food Science and Engineering, Ocean University of China, Qingdao 266003, ChinaCollege of Food Science and Engineering, Ocean University of China, Qingdao 266003, ChinaCollege of Food Science and Engineering, Ocean University of China, Qingdao 266003, ChinaHigh resolution melting (HRM), with a high sensitivity to distinguish the nucleic acid species with small variations, has been widely applied in the mutation scanning, methylation analysis, and genotyping. For the aim of extending HRM for the evaluation of thermal stability of nucleic acid secondary structures on sequence dependence, we investigated effects of the dye of EvaGreen, metal ions, and impurities (such as dNTPs) on melting temperature (Tm) measurement by HRM. The accuracy of HRM was assessed as compared with UV melting method, and little difference between the two methods was found when the DNA Tm was higher than 40°C. Both insufficiency and excessiveness of EvaGreen were found to give rise to a little bit higher Tm, showing that the proportion of dye should be considered for precise Tm measurement of nucleic acids. Finally, HRM method was also successfully used to measure Tms of DNA triplex, hairpin, and RNA duplex. In conclusion, HRM can be applied in the evaluation of thermal stability of nucleic acid (DNA or RNA) or secondary structural elements (even when dNTPs are present).http://dx.doi.org/10.1155/2016/5318935
spellingShingle Jing Wang
Xiaoming Pan
Xingguo Liang
Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
Journal of Analytical Methods in Chemistry
title Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
title_full Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
title_fullStr Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
title_full_unstemmed Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
title_short Assessment for Melting Temperature Measurement of Nucleic Acid by HRM
title_sort assessment for melting temperature measurement of nucleic acid by hrm
url http://dx.doi.org/10.1155/2016/5318935
work_keys_str_mv AT jingwang assessmentformeltingtemperaturemeasurementofnucleicacidbyhrm
AT xiaomingpan assessmentformeltingtemperaturemeasurementofnucleicacidbyhrm
AT xingguoliang assessmentformeltingtemperaturemeasurementofnucleicacidbyhrm