RT Journal A1 Wiemann, Stefan A1 Weil, Bernd A1 Wellenreuther, Ruth A1 Gassenhuber, Johannes A1 Glassl, Sabine A1 Ansorge, Wilhelm A1 Böcher, Michael A1 Blöcker, Helmut A1 Bauersachs, Stefan A1 Blum, Helmut A1 Lauber, Jürgen A1 Düsterhöft, Andreas A1 Beyer, Andreas A1 Köhrer, Karl A1 Strack, Normann A1 Mewes, Hans-Werner A1 Ottenwälder, Birgit A1 Obermaier, Brigitte A1 Tampe, Jens A1 Heubner, Dagmar A1 Wambutt, Rolf A1 Korn, Bernhard A1 Klein, Michaela A1 Poustka, Annemarie T1 Toward a Catalog of Human Genes and Proteins: Sequencing and Analysis of 500 Novel Complete Protein Coding Human cDNAs JF Genome Research JO Genome Research YR 2001 FD March 01 VO 11 IS 3 SP 422 OP 435 DO 10.1101/gr.154701 UL http://genome.cshlp.org/content/11/3/422.abstract AB With the complete human genomic sequence being unraveled, the focus will shift to gene identification and to the functional analysis of gene products. The generation of a set of cDNAs, both sequences and physical clones, which contains the complete and noninterrupted protein coding regions of all human genes will provide the indispensable tools for the systematic and comprehensive analysis of protein function to eventually understand the molecular basis of man. Here we report the sequencing and analysis of 500 novel human cDNAs containing the complete protein coding frame. Assignment to functional categories was possible for 52% (259) of the encoded proteins, the remaining fraction having no similarities with known proteins. By aligning the cDNA sequences with the sequences of the finished chromosomes 21 and 22 we identified a number of genes that either had been completely missed in the analysis of the genomic sequences or had been wrongly predicted. Three of these genes appear to be present in several copies. We conclude that full-length cDNA sequencing continues to be crucial also for the accurate identification of genes. The set of 500 novel cDNAs, and another 1000 full-coding cDNAs of known transcripts we have identified, adds up to cDNA representations covering 2%–5 % of all human genes. We thus substantially contribute to the generation of a gene catalog, consisting of both full-coding cDNA sequences and clones, which should be made freely available and will become an invaluable tool for detailed functional studies.[The sequence data described in this paper have been submitted to the EMBL database under the accession nos. given in Table 2.]