5O79

Klebsiella pneumoniae OmpK36

Summary for 5O79

• Entry DOI: 10.2210/pdb5o79/pdb
• Descriptor: OmpK36, (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE, MAGNESIUM ION, ... (4 entities in total)
• Functional Keywords: outer membrane protein, porin, ion transport, ompc ortholog, membrane protein
• Biological source: Klebsiella pneumoniae
• Total number of polymer chains: 3
• Total formula weight: 116923.66

Authors

van den berg, B.,Pathania, M. (deposition date: 2017-06-08, release date: 2018-06-20, Last modification date: 2024-01-17)

Primary citation

Acosta-Gutierrez, S.,Ferrara, L.,Pathania, M.,Masi, M.,Wang, J.,Bodrenko, I.,Zahn, M.,Winterhalter, M.,Stavenger, R.A.,Pages, J.M.,Naismith, J.H.,van den Berg, B.,Page, M.G.P.,Ceccarelli, M.
Getting Drugs into Gram-Negative Bacteria: Rational Rules for Permeation through General Porins.
Acs Infect Dis., 4:1487-1498, 2018

PubMed Abstract: Small, hydrophilic molecules, including most important antibiotics in clinical use, cross the Gram-negative outer membrane through the water-filled channels provided by porins. We have determined the X-ray crystal structures of the principal general porins from three species of Enterobacteriaceae, namely Enterobacter aerogenes, Enterobacter cloacae, and Klebsiella pneumoniae, and determined their antibiotic permeabilities as well as those of the orthologues from Escherichia coli. Starting from the structure of the porins and molecules, we propose a physical mechanism underlying transport and condense it in a computationally efficient scoring function. The scoring function shows good agreement with in vitro penetration data and will enable the screening of virtual databases to identify molecules with optimal permeability through porins and help to guide the optimization of antibiotics with poor permeation.

PubMed: 29962203
DOI: 10.1021/acsinfecdis.8b00108

Experimental method

X-RAY DIFFRACTION (1.65 Å)