NASBA Method
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e
Nucleic Acid Sequence-Based Amplification (NASBA)
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E
used to amplify target RNA
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E
employs three enzymes:
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]
reverse transcriptase:
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]
ribonuclease H:
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]
T7 RNA polymerase:
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-
makes complementary DNA strand from RNA and it
serves as template for rurther replication
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-degrades RNA to allow for a complete-double
stranded DNA
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-produces multiple copies of RNA from DNA
template
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clinical application:
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detection of viral RNA