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Hi,
I have an EPIC beadchip methylation array that was stored in my lab, and remained unused past the expiration date. We wish to use it, together with newly bought ones, but apparently the DMAP files can only be downloaded from Illumina up to one year past the expiration date, and ours was not downloaded. It seems this policy was put in effect after we bought, but even though Illumina tech support told me they don't have the files anymore, which is a bit frustrating. So I was wondering, are all the DMAP files for different arrays unique, or are there different versions of DMAP files. Meaning, if I could get a DMAP file from another array, mainly if it was bought at a similar date, could I use that DMAP file in my array? Would that give me identical results, small differences in a few probes, or completely nonsensical results? I'm interested only in a few probes, so if somehow the results for those could be reliable, then it might be worth trying.
Thanks in advance.
I have an EPIC beadchip methylation array that was stored in my lab, and remained unused past the expiration date. We wish to use it, together with newly bought ones, but apparently the DMAP files can only be downloaded from Illumina up to one year past the expiration date, and ours was not downloaded. It seems this policy was put in effect after we bought, but even though Illumina tech support told me they don't have the files anymore, which is a bit frustrating. So I was wondering, are all the DMAP files for different arrays unique, or are there different versions of DMAP files. Meaning, if I could get a DMAP file from another array, mainly if it was bought at a similar date, could I use that DMAP file in my array? Would that give me identical results, small differences in a few probes, or completely nonsensical results? I'm interested only in a few probes, so if somehow the results for those could be reliable, then it might be worth trying.
Thanks in advance.