Supplementary Figure 7: Inchworm models for DNA and translocation and loop extrusion.

a, DNA translocation model requiring a regulated grapple DNA binding site and a sliding anchor DNA binding site. DNA binding may or may not involve a DNA entrapping ring that could be used to enhance processivity. b, Loop extrusion using a second anchor site. DNA binding may or may not involve a DNA entrapping ring that could be used to enhance processivity.