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| The principle of LAMP method |


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"LAMP"
which stands for Loop-mediated Isothermal Amplification is a simple,
rapid, specific and cost-effective nucleic acid amplification method
solely developed by Eiken Chemical Co., Ltd. It is characterized
by the use of 4 different primers specifically designed to recognize
6 distinct regions on the target gene and the reaction process proceeds
at a constant temperature using strand displacement reaction. Amplification
and detection of gene can be completed in a single step, by incubating
the mixture of samples, primers, DNA polymerase with strand displacement
activity and substrates at a constant temperature (about 65°C). It
provides high amplification efficiency, with DNA being amplified
109-1010 times in 15-60 minutes. Because of its high specificity,
the presence of amplified product can indicate the presence of target
gene. |
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There is no need for a step to denature
double stranded into a single stranded form. |
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The whole amplification reaction takes
place continuously under isothermal conditions. |
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The amplification efficiency is extremely
high. |
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By designing 4 primers to recognize
6 distinct regions, the LAMP method is able to specifically
amplify the target gene. |
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The total cost can be reduced, as LAMP
dose not require special reagents or sophisticated equipments.
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The amplified products have a structure
consisting of alternately inverted repeats of the target sequence
on the same strand. |
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Amplification can be done with RNA
templates following the same procedure as with DNA templates,
simply through the addition of reverse transcriptase. |
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