Figure 3
From: Evolution of protein indels in plants, animals and fungi
Examples of simple and complex indels. A partial protein sequence alignment of transcription initiation factor TFIIH subunit H2 from 31 eukaryotic species is shown. Two example of simple indels are shown in block A and B, and a complex indel is labeled as block C. Indel A is a singleton indel (found in only one sequence), and indel B is a multi-residue CDI (clade defining indel).