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Solvent accessibility of active sites. The top panels show O1U1C, and the bottom panels show O2U0N. A and D, localization of water molecules (represented as small balls) with passages to and from the active site of OTUB1 and OTUB2. B and E, water path cluster density was absent in O1U1C and spread across the entire catalytic triad in O2U0N. C and F, local water distribution densities represented as spheres, and inner pocket volume represented as mesh.
