2VPR:
reference: Tet repressor induction by tetracycline: a molecular dynamics, continuum electrostatics, and crystallographic study., Aleksandrov A, Schuldt L, Hinrichs W, Simonson T, J Mol Biol. 2008 May 9;378(4):898-912. Epub 2008 Mar 19. PMID: 18395746

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