3H20:
reference: Structure and function of primase RepB' encoded by broad-host-range plasmid RSF1010 that replicates exclusively in leading-strand mode., Geibel S, Banchenko S, Engel M, Lanka E, Saenger W, Proc Natl Acad Sci U S A. 2009 May 12;106(19):7810-5. Epub 2009 Apr 24. PMID: 19416864

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).