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Table 1 Summary of Xenopus EST cleanup and clustering.

From: XenDB: Full length cDNA prediction and cross species mapping in Xenopus laevis

Total number of ESTs and cDNAs 350,468
Number of distinct clones 245,415
Number of good sequences 317,242
Average trimmed EST length (bp) 536
Number of 3' EST sequences 116,122
Number of 5' EST sequences 228,496
Clones with 5' and 3' sequences 92,463
Number of clusters 25,971
Number of singletons 40,877
Number of CAP3 contigs 31,353
Number of CAP3 singletons 4,801
Average CAP3 contig length (bp) 1,045
Max. cluster size (no. of ESTs) 6,332
Average cluster size (no. of ESTs) 10.6
Cluster sizes: # EST
4,097 – 8,192 1
2,049 – 4,096 1
1,025 – 2,048 2
513 – 1,024 15
257 – 512 35
129 – 256 116
65 – 128 414
33 – 64 973
17 – 32 1,755
9 – 16 2,974
5 – 8 4,571
3 – 4 6,444
2 8,670