Extended Data Figure 4. Chromatin factors use an arginine-anchor to bind the H2A/H2B acidic patch.
Identical views of a, E3 ligase Ring1B (blue), b, viral LANA peptide (purple, PDB ID 1ZLA27), c, chromatin factor RCC1 (purple, PDB ID 3MVD28), d, centromeric protein CENP-C (green, PDB ID 4INM30), and e, silencing protein Sir3 (brown, PDB ID 3TU429) bound the acidic patch. Conserved arginine is shown in space-filling representation. Other arginines involved in binding are shown as sticks. UbcH5c and the Ring1B loop between residues 81 and 98 are not shown for figure clarity.