Fig. 2.
Examples of repeat domain expansions. Each plot shows the internal sequence identity domainwise within the protein. Black shows complete sequence identity, while white indicates no sequence identity. (A) Tandem casette duplication of spectrin domains in Xenopus tropicalis, (B) two separate clustered tandem duplications of the immunoglobulin domain in Ailuropoda melanoleuca. (C) The every other similarity pattern seen in the Filamin of Strongylocentrotus purpuratus. (D) A Ciona savignyi protein containing KH domain repeats.