Petrenko DE, Timofeev VI, Britikov VV, Britikova EV, Kleymenov SY, Vlaskina AV, Kuranova IP, Mikhailova AG, Rakitina TV (2021) <br />First Crystal Structure of Bacterial Oligopeptidase B in an Intermediate State: The Roles of the Hinge Region Modification and Spermine<br /><i>Biology (Basel)</i> <b>10</b>: <br /><br />