Fig. 2

Dynamic cross-correlation matrices (DCCM) from representative HPAI and LPAI RBDs. DCCM for A0A2D9 (representative for the HPAI cluster) and A4K2G6 (representative for the LPAI cluster) are presented, where amino acid residue numbers for the proteins are reported at the x-axis and DCCM value range is colour coded at the right side, from negative correlation motions (blue) to positive correlation ones (red). In the zoom-in of 100–150 sub-area of the matrices, varying motions are boxed and related to highlighted 110-helix regions