An Expressed Sequence Tag (EST) is a partial sequence of a randomly-chosen cDNA, obtained from the results of a single DNA sequencing reaction. ESTs are used to identify transcribed regions in genomic sequence and to characterize patterns of gene expression in the tissue from which the cDNA was derived.
The annotation data file, RGD_EST.gff, was downloaded from
      
ftp://rgd.mcw.edu/pub/RGD_genome_annotations/V3.1/GFF_files/
and processed to create two UCSC Genome Browser tables -- rgdEst and
rgdEstLink -- to enable this track.
Thanks to the RGD for providing this annotation. RGD is funded by grant HL64541 entitled "Rat Genome Database", awarded to Dr. Howard J Jacob, Medical College of Wisconsin, from the National Heart Lung and Blood Institute (NHLBI) of the National Institutes of Health (NIH).