The hidden transcriptome
Analysis of the human transcriptome is often limited to annotated sequences. In the May 3 Science, Philipp Kapranov and colleagues at Affymetrix Inc., California provide evidence for many undiscovered transcribed sequences from human chromosomes 21 and 22 (Science 2002, 296:916-919).Most microarray transcriptome analysis is based on annotated exon sequences. Kapranov et al. took an empirical approach and constructed microarrays containing 25-mer oligonucleotides spaced uniformly every 35 base-pa
May 6, 2002
Analysis of the human transcriptome is often limited to annotated sequences. In the May 3
Most microarray transcriptome analysis is based on annotated exon sequences. Kapranov
The authors predict that there may be as much as an order of magnitude greater transcription than is implied by the current annotation, and suggest that this approach could lead to array-guided transcription maps and the discovery of an extensive...