Fig. 4: Analysis of AlphaFold predictions of bacterial flagellin outer domains.

A The typical architecture of flagellin includes outer domains. The D0 and D1 domains, which have 263 or a bit more residues, are colored in red and purple, respectively. The other outer domains, extending from inner to outer diameter, are sequentially named D2, D3, D4, and so on. B This plot represents the number of UniProt entries corresponding to various lengths of flagellin proteins. Flagellin AlphaFold predictions equal and longer than 350 residues are selected for subsequent multistep analysis, as described in the method section. 682 structural clusters were generated. C The matrix visualizes a DALI all-to-all analysis of 682 structural cluster representatives. It is constructed using pairwise DALI Z-scores, with the corresponding Z-score color scale presented on the right. The most prominent cluster, located at the bottom right of the matrix, contains representatives with Ig-like domains.