All-atom contact dots showing tight contact between the ribonuclease A enzyme and the Uridine Vanadate transition-state-mimic inhibitor (PDB file 1RUV), with hydrogen bonds as pillows of pale green dots and favorable van der Waals contacts in blue and green.  Contacts calculated by Probe, displayed in Mage.
Dcrjsr
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<span class="int-own-work" lang="en">Own work</span>