Examples of local conformational convergence. Red motifs in rectangles are the structural letter sequences of the fragment highlighted in red in the structures. Numbers associated to blue arrows are the Cα local rmsd computed between the red fragments. Numbers between brakets denote the region of the protein covered by the structural motif. Top row: unbound structures, bottom: bound structures. a) Motif GOIF is seen in the bound forms of complex 1AHW (antibody-antigene) and 1BVN (enzyme/substrate). b) Motif LLGI is seen in the bound forms of complex 1GRN (other) and 1UDI (enzyme/substrate).