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1 температура плавления ДНК
Русско-английский словарь нормативно-технической терминологии > температура плавления ДНК
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2 плавление ДНК
процесс расплетения комплементарных цепей двухцепочечной ДНК под действием температуры (см. денатурация ДНК), переход регулярной двойной спирали линейной молекулы ДНК в клубкообразное состояние. Переход "спираль-клубок" может быть вызван различными факторами, но, как правило, исследуется температурный переход. Наблюдение за этим переходом может осуществляться различными методами, так как он сопровождается изменением многих физических свойств ДНК. Наиболее часто для количественных измерений степени перехода используется изменение поглощения света раствором ДНК в области длин волн 250—270 нм. При переходе ДНК из спирального состояния в клубкообразное поглощение раствора в этой области длин волн увеличивается на 30—40 %.Толковый биотехнологический словарь. Русско-английский. > плавление ДНК
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3 температура плавления ДНК
Molecular genetics: DNA melting temperatureУниверсальный русско-английский словарь > температура плавления ДНК
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4 понижать
Понижать - to depress, to lower, to reduceAdding an appropriate amount of Al2O3 can depress the melting point further by almost 100oC.This behavior may lower the local cylinder wall temperature by a small amount.The activity of DNA-ases may be measured by their power to reduce the viscosity of DNF salts.Русско-английский научно-технический словарь переводчика > понижать
См. также в других словарях:
DNA denaturation — DNA denaturation, also called DNA melting, is the process by which double stranded deoxyribonucleic acid unwinds and separates into single stranded strands through the breaking of hydrogen bonding between the bases. Both terms are used to refer… … Wikipedia
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Melting temperature — may refer to: Melting point, the temperature at which a substance changes from solid to liquid state. DNA melting temperature, the temperature at which a DNA double helix dissociates into single strands. This disambiguation page lists articles… … Wikipedia
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DNA ligase — repairing chromosomal damage Identifiers EC number 6.5.1.1 … Wikipedia
melting temperature — noun (biology) The temperature at which half the molecules in a nucleic acid solution have undergone thermal denaturation, ie DNA dissociated into single strands • • • Main Entry: ↑melt … Useful english dictionary
DNA — For a non technical introduction to the topic, see Introduction to genetics. For other uses, see DNA (disambiguation). The structure of the DNA double helix. The atoms in the structure are colour coded by element and the detailed structure of two … Wikipedia
Melting — Ice melting Molten redirects here. For the Japanese company, see Molten Corporation; or see Molton or Moulton. Melting, or fusion, is a physical process that results in the phase change of a substance from a solid to a liquid. The internal energy … Wikipedia
DNA microarray — A DNA microarray (also commonly known as gene chip, DNA chip, or biochip) is a collection of microscopic DNA spots attached to a solid surface. Scientists use DNA microarrays to measure the expression levels of large numbers of genes… … Wikipedia
melting temperature — (Tm) The temperature at which double stranded DNA separates into individual strands; it is dependent on the G 1 C content of the DNA and is used to compare genetic material in microbial taxonomy … Dictionary of microbiology
melting temperature — Abbreviation: Tm The temperature at which a double stranded DNA molecule denatures into separate single strands. Tm is determined by the length of the molecule and its base composition. DNAs rich in G:C base pairs have higher Tm than A:T rich DNA … Glossary of Biotechnology
