AIMS In view of recent findings that a multidrug efflux pump CmeABC exists in Campylobacter jejuni, 391 C. jejuni and 52 Campylobacter coli of human and animal origin were examined for a multidrug resistance phenotype. MATERIALS AND METHODS The MICs of ampicillin, chloramphenicol, ciprofloxacin, erythromycin, kanamycin, tetracycline, cetrimide, triclosan, acridine orange, paraquat and ethidiu...

Arginine-rich peptides and small-molecule intercalating agents utilize distinct molecular mechanisms for RNA recognition. Here, we combined these distinct binding modules in an effort to create conjugate ligands with enhanced affinity and specificity using the bacteriophage lambda N peptide-boxB interaction as a model system. We first designed and synthesized a series of peptide-acridine conjug...

Oligodeoxynucleotides covalently linked to an acridine derivative were targeted to part of the 3'-terminal sequence which is common to the eight RNAs of type A influenza viruses. The cytopathic effect of the virus on MDCK cells in culture was strongly decreased by a heptanucleotide covalently attached to the acridine ring. Control experiments using other oligonucleotide sequences showed that th...

In the title complex, [PtBr(2)(C(13)H(9)N)(2)], the Pt(II) ion is four-coordinated in a slightly distorted square-planar environment by two N atoms from two acridine ligands and two Br atoms. The Pt atom is located on an inversion centre, and thus the asymmetric unit contains one half of the complex and the PtN(2)Br(2) unit is exactly planar. The dihedral angle between the PtN(2)Br(2) unit and ...

Endocytosis by mammalian cells leads to the rapid uptake of exogenous solutes within plasma-membrane-derived vesicles. In general, fusion of these vesicles with primary or secondary iysosomes occurs and most biological macromolecules are degraded to small molecular weight components (1). Extensive bidirectional flow of membrane takes place between the plasma membrane and the lysosomal apparatus...