Rat Genome 230 2.0 Array
The GeneChip Rat Genome 230 2.0 Array represents over 31,000 probe sets including over 28,000 well-substantiated rat genes. All content from the previous generation GeneChip Rat Expression 230 Set (A and B arrays) is included on this single array. Sequences used in the design of the array were selected from GenBank, dbEST, and RefSeq. The sequence clusters were created from the UniGene database Build 99 (June 2002) and then refined by analysis and comparison with the publicly available draft assembly of the rat genome from the Baylor College of Medicine Human Genome Sequencing Center (June 2002).

Rat Expression Set 230
This two-array set of GeneChip probe arrays represents over31,000 probe sets and over 681,000 distinct oligonucleotide features covering over 30,200 transcripts and variants, including over28,000 well-substantiated rat genes. Sequences used in the design of the array were selected from GenBank, dbEST, and RefSeq. The sequence clusters were created from the UniGene database Build99 (June 2002) and then refined by analysis and comparison with the publicly available draft assembly of the rat genome from the Baylor College of Medicine Human Genome Sequencing Center (June 2002).

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