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Mapping 250K/500K SNP assay

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276 GeneChip ® <strong>Mapping</strong> <strong>500K</strong> Assay Manual<br />

To expedite the aliquoting, the Labeling Master Mix can be first<br />

divided into 8 or 12 microtube strips and then dispensed into the<br />

wells of the plate with an 8- or 12-channel pipette. Pipet up and<br />

down several times to mix. Be sure to change tips between<br />

samples.<br />

3. Seal the plate tightly with a plate cover.<br />

4. Vortex the plate at medium speed for 2 seconds, and spin the plate<br />

at 2,000 rpm for 1 minute.<br />

5. Run the <strong>500K</strong> Label program:<br />

<strong>500K</strong> Label Program<br />

Temperature Time<br />

37ºC 4 hours<br />

95ºC 15 minutes<br />

4ºC Hold<br />

Make sure the plates/reaction tubes are securely sealed prior to<br />

running this program in order to minimize solution loss due to<br />

evaporation at denaturation step (95°C).<br />

6. Spin the plate at 2,000 rpm for 1 minute after the labeling<br />

reaction.<br />

Samples can be stored at –20°C if not proceeding to next step.

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