Extended Data Fig. 8: Structural comparison of the unmodified nucleosome and SSX1-H2AK119Ub nucleosome complex (1:1 complex), SSX1-H2AK119Ub nucleosome complex (2:1 complex).

a. Left, Overall view of the superimposed structures of the unmodified nucleosome and 1:1 complex. Right, close-up view of the contact between exit DNA and H3 α-N helix. b. Left, overall view of the superimposed structures of the unmodified nucleosome and 2:1 complex. Top right, close-up view of the contact between exit DNA and H3 α-N helix. Bottom right, close-up view of the contact between entry DNA and H3 α-N helix.