Skip to Content
Merck
  • LmrS is a multidrug efflux pump of the major facilitator superfamily from Staphylococcus aureus.

LmrS is a multidrug efflux pump of the major facilitator superfamily from Staphylococcus aureus.

Antimicrobial agents and chemotherapy (2010-09-22)
Jody L Floyd, Kenneth P Smith, Sanath H Kumar, Jared T Floyd, Manuel F Varela
ABSTRACT

A multidrug efflux pump designated LmrS (lincomycin resistance protein of Staphylococcus aureus), belonging to the major facilitator superfamily (MFS) of transporters, was cloned, and the role of LmrS in antimicrobial efflux was evaluated. The highest relative increase in MIC, 16-fold, was observed for linezolid and tetraphenylphosphonium chloride (TPCL), followed by an 8-fold increase for sodium dodecyl sulfate (SDS), trimethoprim, and chloramphenicol. LmrS has 14 predicted membrane-spanning domains and is homologous to putative lincomycin resistance proteins of Bacillus spp., Lactobacillus spp., and Listeria spp.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Sodium dodecyl sulfate, ACS reagent, ≥99.0%
Supelco
Sulfadimethoxine, VETRANAL®, analytical standard
Sigma-Aldrich
Sodium dodecyl sulfate, ≥90% ((Assay))
Sigma-Aldrich
Trimethoprim, ≥99.0% (HPLC)
Supelco
Trimethoprim, VETRANAL®, analytical standard
Supelco
Sodium dodecyl sulfate, suitable for ion pair chromatography, LiChropur, ≥99.0%
Sigma-Aldrich
Sodium dodecyl sulfate, tested according to NF, mixture of sodium alkyl sulfates consisting mainly of sodium dodecyl sulfate
Sigma-Aldrich
Erythromycin, potency: ≥850 μg per mg
Sigma-Aldrich
Trimethoprim, ≥98.5%
Sigma-Aldrich
Rifampicin, ≥95% (HPLC), powder or crystals
Supelco
Sulfadimethoxine, 98.0-102.0%
Sigma-Aldrich
Rifampicin, suitable for plant cell culture, BioReagent, ≥95% (HPLC), powder or crystals
Sigma-Aldrich
Sodium dodecyl sulfate, ReagentPlus®, ≥98.5% (GC)
Sigma-Aldrich
Erythromycin, BioReagent, suitable for cell culture
Sigma-Aldrich
Sodium dodecyl sulfate, BioXtra, ≥99.0% (GC)
Sigma-Aldrich
Sodium dodecyl sulfate, BioReagent, suitable for electrophoresis, ≥98.5% (GC), free-flowing, Redi-Dri
Sigma-Aldrich
Sodium dodecyl sulfate, BioReagent, suitable for electrophoresis, ≥98.5% (GC)
Sigma-Aldrich
Erythromycin, tested according to Ph. Eur.
Sigma-Aldrich
Erythromycin, meets USP testing specifications
Sigma-Aldrich
Ethidium bromide solution, BioReagent, 500 μg/mL in H2O
Sigma-Aldrich
Sodium dodecyl sulfate, BioUltra, ≥99.0% (GC)
Sigma-Aldrich
Ethidium bromide solution, ~1% in H2O
Sigma-Aldrich
Tetraphenylphosphonium chloride, 98%
Sigma-Aldrich
Sodium dodecyl sulfate, ≥98.0% (GC)
Sigma-Aldrich
Sodium dodecyl sulfate, 92.5-100.5% based on total alkyl sulfate content basis
Supelco
Reserpine Standard for LC-MS, analytical standard, for LC-MS
Sigma-Aldrich
Reserpine
Sigma-Aldrich
Ethidium bromide, ~95% (HPLC)
Sigma-Aldrich
Hexadecyltrimethylammonium bromide, BioXtra, ≥99%
Sigma-Aldrich
Carbonyl cyanide 3-chlorophenylhydrazone, ≥97% (TLC), powder