Links to databases

• TreeBASE
• Tree of Life
• NCBI Taxonomy
• EMBL sequence alignment database

• GenBank
• EMBL
• Swiss-Prot and TrEMBL

• SYSTERS -- protein clusters from Swiss-Prot, TrEMBL, wormpep, flybase
• CluSTr -- protein clusters from complete prokaryotic and eukaryotic genomes
• COG -- clusters of orthologous genes (proteins) based on complete genomes