Time line for making cDNA arrays

Schedule of work for making cDNA microarrays 

 

Task

Time allocated 

1

Prepare positive and negative DNA controls

Variable

2

Optimize PCR

Variable

3

PCR all plates, run product on agarose gels

~ 10 plates/day

4

Verify that fragment lengths match expected lengths

1-2 days

5

Determine which genes, if any, need to be reamplified and Re-PCR  these genes.

Variable

6

Replace reamplified genes in original 96-well position

Variable

7

Purify PCR product and controls  

~ 20 plates/day

8

Print controls (test print)

~1 day

9

Prepare polyA-RNA for test probe (to hybridize to control slides)

 ~2 days

10

Block control slides

1 hour

11

Hybridize control slides with test probe

1-2 days

12

Make .gal file for spot identification

1-2 days

13

Transfer purified DNA, including controls, from 96-well plates into 384-well plates

1day

14

Print full arrays 

1-2 days

 

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