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Old 10-21-2014, 05:18 AM   #1
Location: UK

Join Date: Oct 2014
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Default Expression profiles probe id meaning?


What is difference between different probe in the gene expression profiles?
e.g. Gene: IGF1
Probe ID: 211577_s_at, 209540_at, 209542_x_at, 209541_at

I tried to understand it from Wiki, but I would be grateful if somebody could breifly describe it for the beginners.

Thanks in advance.
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Old 10-21-2014, 05:55 AM   #2
Devon Ryan
Location: Freiburg, Germany

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They target different regions of the gene (or different transcripts). For example, you'll note that those 4 probes target transcripts with different genbank accession numbers.
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Old 10-21-2014, 06:43 AM   #3
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Jeni, if you mean what do the different probe identification schemes mean (the _s_at, _x_at differences), have a look at
Michael Black, Ph.D.
ScitoVation LLC. RTP, N.C.
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expression, gene, probe, rna

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