IE-Kb: intron exon knowledge base

IE-Kb (Intron Exon-KnowIedge base) illustrates the intron-exon dynamics in eukaryotic genes. We have developed three different knowledge sets, namely 'Non-redundant ExInt', 'Non-redundant Pfam-ExInt complement' and 'Non-redun dant GenBank eukaryotic subdivisional sets' to understand this phenomenon. Statistical analysis is performed on each knowledge set and the results are made available online. The entries in Knowledge sets are ranked based on t heir intron length, exon length and protein length with relational hyper-li nks to the corresponding intron phase, intron position, intron sequence, ge ne definition and parent GenBank entry.