Learn more about Rat Gene 1.0 ST Array coverage

The GeneChip® Rat Gene 1.0 ST Array enables whole-genome, gene-level expression studies for well-characterized genes. It is a single GeneChip®-brand array comprised of more than 700,000 unique 25-mer oligonucleotide features constituting more than 27,000 gene-level probe sets.

The design of the Rat Gene 1.0 ST Array is based primarily on a subset of GeneChip® Rat Exon 1.0 ST Array probes that map to well-supported exons of known genes. Discovery content based solely on Expressed Sequence Tags (ESTs) and RefSeq XMs is not interrogated by the Rat Gene 1.0 ST Array. However, predicted Ensembl EnsGene transcripts are included along with other EnsGene content.

The array design was based on sequences and gene annotations obtained from the following sources and used to group probes into gene-level probe sets. In some cases, these sequences were used to select additional new probes not present on the Rat Exon 1.0 ST Array:

	•	The November 2004 rat genome sequence (UCSC rn4, Baylor HGSC build 3.4)
	•	RefSeq NM (curated and provisional; not predicted) mRNA sequences (10,084 sequences) current to April 3, 2007
	•	GenBank® complete coding sequence mRNAs (12,547 sequences) current to January 25, 2007
	•	Rat Ensembl transcripts current to April 3, 2007 (37,695 transcripts)
	•	Syntenically mapped full-length mRNAs and RefSeq NMs from human (66,206 sequences) and mouse (49,516 sequences)