Metal-Containing Initiator Systems

Metal-Induced Stabilization and Activation of Plasmid Replication Initiator RepB

Initiation of plasmid rolling circle replication (RCR) is catalyzed by a plasmid-encoded Rep protein that performs a Tyr- and metal-dependent site-specific cleavage of one DNA strand within the double-strand origin (dso) of replication. The crystal structure of RepB, the initiator protein of the streptococcal plasmid pMV158, constitutes the first example of a Rep protein structure from RCR plas...

Mass Spectrometer Study of Metal-containing Flames

Metal-containing peptide nucleic acid conjugates.

Peptide Nucleic Acids (PNAs) are non-natural DNA/RNA analogues with favourable physico-chemical properties and promising applications. Discovered nearly 20 years ago, PNAs have recently re-gained quite a lot of attention. In this Perspective article, we discuss the latest advances on the preparation and utilisation of PNA monomers and oligomers containing metal complexes. These metal- conjugate...

TMNSPAREW’ !vlONCI.ITHIC METAL ION CONTAINING NANOPHASE AEROGELS

The formation of nlonolithie and transparent transition metal containing aerogel m~~ been achieved through co:,perative interactions of high molecular weight fictionalized carbohydrates and silica p .ecursors, which strong]y influence the kinetics of gelation. After initial gelation, subsequen: modification of the ligating character of the system, coordination of the group VIII metal ions, and ...

Biomineralization of metal-containing ores and concentrates.

Biomining is the use of microorganisms to extract metals from sulfide and/or iron-containing ores and mineral concentrates. The iron and sulfide is microbially oxidized to produce ferric iron and sulfuric acid, and these chemicals convert the insoluble sulfides of metals such as copper, nickel and zinc to soluble metal sulfates that can be readily recovered from solution. Although gold is inert...