Ubiquitin is perhaps most famous for flagging damaged or unwanted proteins for destruction by the proteasome. But when a single ubiquitin is attached to histones, the consequences are entirely different.
More at Molecule of the Month and #IUCrpdb101.rcsb.org/motm/320
Born on 14 August 1914 in Pocahontas, Virginia, Herman Branson was a biophysicist and university president who codiscovered the alpha-helix protein structure #IUCr2026