B. Table showing location, number of inserted or deleted residues and motility phenotype of all 18 stalk mutants. Quantification and classification are based on three technical repetitions. C. Example kymographs for 'Directional - WT like', 'Diffusive like', 'No movement', and 'Transient binding'. Magnified area for 'Diffusive like' motion shows run of a single molecule. 