3VVN

Crystal structure of MATE in the straight conformation

Summary for 3VVN

• Entry DOI: 10.2210/pdb3vvn/pdb
• Related: 3VVO 3VVP 3VVQ 3VVR 3VVS
• Descriptor: Putative uncharacterized protein, (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate (3 entities in total)
• Functional Keywords: mate, multidrug transporter, transport protein
• Biological source: Pyrococcus furiosus
• Total number of polymer chains: 1
• Total formula weight: 53554.74

Authors

Tanaka, Y.,Ishitani, R.,Nureki, O. (deposition date: 2012-07-27, release date: 2013-04-03, Last modification date: 2024-03-20)

Primary citation

Tanaka, Y.,Hipolito, C.J.,Maturana, A.D.,Ito, K.,Kuroda, T.,Higuchi, T.,Katoh, T.,Kato, H.E.,Hattori, M.,Kumazaki, K.,Tsukazaki, T.,Ishitani, R.,Suga, H.,Nureki, O.
Structural basis for the drug extrusion mechanism by a MATE multidrug transporter.
Nature, 496:247-251, 2013

PubMed Abstract: Multidrug and toxic compound extrusion (MATE) family transporters are conserved in the three primary domains of life (Archaea, Bacteria and Eukarya), and export xenobiotics using an electrochemical gradient of H(+) or Na(+) across the membrane. MATE transporters confer multidrug resistance to bacterial pathogens and cancer cells, thus causing critical reductions in the therapeutic efficacies of antibiotics and anti-cancer drugs, respectively. Therefore, the development of MATE inhibitors has long been awaited in the field of clinical medicine. Here we present the crystal structures of the H(+)-driven MATE transporter from Pyrococcus furiosus in two distinct apo-form conformations, and in complexes with a derivative of the antibacterial drug norfloxacin and three in vitro selected thioether-macrocyclic peptides, at 2.1-3.0 Å resolutions. The structures, combined with functional analyses, show that the protonation of Asp 41 on the amino (N)-terminal lobe induces the bending of TM1, which in turn collapses the N-lobe cavity, thereby extruding the substrate drug to the extracellular space. Moreover, the macrocyclic peptides bind the central cleft in distinct manners, which correlate with their inhibitory activities. The strongest inhibitory peptide that occupies the N-lobe cavity may pave the way towards the development of efficient inhibitors against MATE transporters.

PubMed: 23535598
DOI: 10.1038/nature12014

Experimental method

X-RAY DIFFRACTION (2.398 Å)