Science Magazine | AAAS: Science Advances Follow Mechanism of USP21 autoinhibition and histone H2AK119 deubiquitination | Science Advances Cryo-EM and in silico protein interaction screening reveals mechanism of USP21 autoinhibition and specificity for H2AK119. https://www.science.org/doi/10.1126/sciadv.ady2604 science.org