Affymetrix Debuts New Human Arrays, Reveals Oligo Sequences on All Chips | GenomeWeb

In its new HG-U133 human genome array set, Affymetrix has reduced the entire genome to two chips. These chips contain about 45,000 probe sets for 39,000 unique transcripts and 33,000 genes, compared to 60,000 probe sets on the previous five-chip U95 set. Do the math, and you realize that the high priest of high density arrays has nearly doubled the data available per chip, to 22,500 probe sets from 12,000.

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