Homology model of the multidrug transporter LmrA from Lactococcus lactis

Author(s)
Karin Pleban, A Macchiarulo, Gabriele Costantino, Roberto Pellicciari, Peter Chiba, Gerhard Ecker
Abstract

Starting from the dimeric crystal structure of Vibrio cholerae MsbA, two homology models of the ATP-dependent multidrug transporter LmrA were generated. LmrA is an ATP dependent multidrug transporter from Lactococcus lactis conferring antibiotic resistance to 17 out of 21 most frequently administered antibiotics. Starting from the dimeric crystal structure of Vc-MsbA, we built two homology models, with NBD:NBD interfaces reflecting the nonenergized and energized state, respectively. The TMD:TMD topology of the dimer is consistent with the previously obtained substrate photoaffinity labeling pattern suggesting binding of substrates at the TMD:TMD interface involving helix 3 of one monomer and helices 5 and 6 of the other monomer. Œ 2004 Published by Elsevier Ltd.

Organisation(s)
External organisation(s)
Università degli Studi di Perugia
Journal
Bioorganic & Medicinal Chemistry Letters
Volume
14
Pages
5823-5826
No. of pages
4
ISSN
0960-894X
Publication date
2004
Peer reviewed
Yes
Austrian Fields of Science 2012
3012 Pharmacy, Pharmacology, Toxicology
Portal url
https://ucrisportal.univie.ac.at/en/publications/3437726a-09d5-4fcc-9d2f-91949daea4a5