TY - JOUR A1 - Carninci, Piero A1 - Waki, Kazunori A1 - Shiraki, Toshiyuki A1 - Konno, Hideaki A1 - Shibata, Kazuhiro A1 - Itoh, Masayoshi A1 - Aizawa, Katsunori A1 - Arakawa, Takahiro A1 - Ishii, Yoshiyuki A1 - Sasaki, Daisuke A1 - Bono, Hidemasa A1 - Kondo, Shinji A1 - Sugahara, Yuichi A1 - Saito, Rintaro A1 - Osato, Naoki A1 - Fukuda, Shiro A1 - Sato, Kenjiro A1 - Watahiki, Akira A1 - Hirozane-Kishikawa, Tomoko A1 - Nakamura, Mari A1 - Shibata, Yuko A1 - Yasunishi, Ayako A1 - Kikuchi, Noriko A1 - Yoshiki, Atsushi A1 - Kusakabe, Moriaki A1 - Gustincich, Stefano A1 - Beisel, Kirk A1 - Pavan, William A1 - Aidinis, Vassilis A1 - Nakagawara, Akira A1 - Held, William A. A1 - Iwata, Hiroo A1 - Kono, Tomohiro A1 - Nakauchi, Hiromitsu A1 - Lyons, Paul A1 - Wells, Christine A1 - Hume, David A. A1 - Fagiolini, Michela A1 - Hensch, Takao K. A1 - Brinkmeier, Michelle A1 - Camper, Sally A1 - Hirota, Junji A1 - Mombaerts, Peter A1 - Muramatsu, Masami A1 - Okazaki, Yasushi A1 - Kawai, Jun A1 - Hayashizaki, Yoshihide T1 - Targeting a Complex Transcriptome: The Construction of the Mouse Full-Length cDNA Encyclopedia Y1 - 2003/06/01 JF - Genome Research JO - Genome Research SP - 1273 EP - 1289 DO - 10.1101/gr.1119703 VL - 13 IS - 6b UR - http://genome.cshlp.org/content/13/6b/1273.abstract N2 - We report the construction of the mouse full-length cDNA encyclopedia,the most extensive view of a complex transcriptome,on the basis of preparing and sequencing 246 libraries. Before cloning,cDNAs were enriched in full-length by Cap-Trapper,and in most cases,aggressively subtracted/normalized. We have produced 1,442,236 successful 3′-end sequences clustered into 171,144 groups, from which 60,770 clones were fully sequenced cDNAs annotated in the FANTOM-2 annotation. We have also produced 547,149 5′ end reads,which clustered into 124,258 groups. Altogether, these cDNAs were further grouped in 70,000 transcriptional units (TU),which represent the best coverage of a transcriptome so far. By monitoring the extent of normalization/subtraction, we define the tentative equivalent coverage (TEC),which was estimated to be equivalent to >12,000,000 ESTs derived from standard libraries. High coverage explains discrepancies between the very large numbers of clusters (and TUs) of this project,which also include non-protein-coding RNAs,and the lower gene number estimation of genome annotations. Altogether,5′-end clusters identify regions that are potential promoters for 8637 known genes and 5′-end clusters suggest the presence of almost 63,000 transcriptional starting points. An estimate of the frequency of polyadenylation signals suggests that at least half of the singletons in the EST set represent real mRNAs. Clones accounting for about half of the predicted TUs await further sequencing. The continued high-discovery rate suggests that the task of transcriptome discovery is not yet complete. ER -