How long does it take to scan an array?
It takes approximately 35 minutes to scan each Exon Array.
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Can I use the WT Sense Target Labeling Assay protocol for prokaryotic arrays?
This has not been tested at the moment; therefore, it is not recommended to use the protocol for any application other than on the Exon Arrays.
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What is the typical cRNA yield after the IVT reaction in the first cycle?
Starting with 1 µg of total RNA, following the standard protocol, ≥ 16 µg of cRNA is routinely obtained. Starting with 100 ng of total RNA without the RiboMinus rRNA removal step, typically, 20 to 60 µg of cRNA can be generated after cRNA cleanup.
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Why do you choose to use an rRNA-reduction strategy but not a poly-A mRNA-specific selection protocol?
It has been shown that a portion of the transcripts in total RNA do not necessarily contain Poly-A tails; therefore, they will be excluded by a poly-A RNA positive selection technique. The rRNA reduction approach will also make the protocol more robust in handling smaller amounts of total RNA samples as little as 1 µg.
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Why is Betaine added to the RiboMinus Hybridization Buffer?
Betaine increases the hybridization stringency. It equalizes the GC Tm and AT Tm, so the background, non-specific, non-rRNA hybridization to the RiboMinus probes due to high GC content may be reduced.
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