Histone Modifications (image) Princeton University Share Print E-Mail Caption Diagram depicting all histone modifications, mutants, and variants present in the 115-member nucleosome library used in this study. Residues modified or mutated were mapped on to the nucleosome in black. H2A (light yellow), H2B (light red), H3 (light blue), and H4 (light green) modification and mutation locations are indicated by boxes and lines. For clarity, connections are only shown to a single copy of each histone protein. Credit Courtesy of Nature Usage Restrictions Image courtesy of Nature Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.