The isolation and characterization of minireplicons corresponding to group B and I-complex plasmids are reported. The molecular structures of the small RNAs that may play a major role in the replication control and incompatibility reactions of the plasmids are compared. A mutant plasmid with changed copy number and incompatibility specificity is described. This mutant had a single-base-pair substitution in the DNA region that codes for the small RNA.
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http://dx.doi.org/10.1128/jb.170.3.1311-1318.1988 | DOI Listing |
J Inorg Biochem
March 2024
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA, UNLP, CCT La Plata-CONICET), Diag. 113 y 64, Sucursal 4, C.C. 16, (B1906ZAA) La Plata, Argentina. Electronic address:
Open Res Eur
October 2023
Wageningen Bioveterinary Research, Lelystd, 8221 RA, The Netherlands.
PLoS Genet
June 2023
Institute for Molecular Bioscience (IMB), The University of Queensland, Brisbane, Queensland, Australia.
Oncol Lett
September 2022
Department of Oncology, Xi'an International Medical Center Hospital, Xi'an, Shaanxi 710100, P.R. China.
Breast cancer is one of the most frequently diagnosed types of cancer worldwide. The present study aimed to investigate the role and underlying regulatory mechanism of non-structural maintenance of chromosome condensin I complex subunit H (NCAPH) in the malignant progression and cisplatin (DDP) resistance of breast cancer cells. Therefore, the mRNA and protein expression levels of NCAPH were first determined in breast cancer cells via reverse transcription-quantitative PCR and western blotting.
View Article and Find Full Text PDFPharmaceuticals (Basel)
January 2022
Faculty of Chemistry, University of Wroclaw, Joliot-Curie 14, 50-383 Wroclaw, Poland.
Two novel phosphine ligands, PhPCHN(CHCH) () and PhPCHN(CHCHCHCH) (), and six new metal (Cu(I), Ir(III) and Ru(II)) complexes with those ligands: iridium(III) complexes: Ir(η5-Cp*)Cl() (), Ir(η5-Cp*)Cl() () (Cp*: Pentamethylcyclopentadienyl); ruthenium(II) complexes: Ru(η6-p-cymene)Cl() (), Ru(η6-p-cymene)Cl() () and copper(I) complexes: [Cu(CHCN)()BF] (), [Cu(CHCN)()BF] () were synthesized and characterized using elemental analysis, NMR spectroscopy, and ESI-MS spectrometry. Copper(I) complexes turned out to be highly unstable in the presence of atmospheric oxygen in contrast to ruthenium(II) and iridium(III) complexes. The studied Ru(II) and Ir(III) complexes exhibited promising cytotoxicity towards cancer cells in vitro with IC values significantly lower than that of the reference drug-cisplatin.
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