Supplementary Figure 1A Distribution of the length of 21,076 insert DNAs.

The longest cDNA is 6,327 bp and the average size of inserts of all clones is 1,257 bp.

Supplementary Figure 1B Sequence accuracy

The distribution of the accuracy of the sequences. On average, the accuracy of the sequence is 99.1%. The 72% (15,236 clones) of clones showed more than 99% accuracy. Especially, 6,739 sequences (32%) could be determined at more than 99.9% accuracy.