Arsenic is a metalloid that occurs naturally in aquatic and terrestrial environments. The high
toxicity of arsenic derivatives converts this element in a serious problem of public health …

We are just beginning to understand the metabolism of heavy metals and to use their
metabolic functions in biotechnology, although heavy metals comprise the major part of the …

Overlapping complementary DNA clones were isolated from epithelial cell libraries with a
genomic DNA segment containing a portion of the putative cystic fibrosis (CF) locus, which is …

Heavy metal (loid) s exert selective pressure on microbial communities and evolution of
metal resistance determinants. Despite increasing knowledge concerning the impact of …

Chromium is a highly toxic non-essential metal for microorganisms and plants. Due to its
widespread industrial use, chromium (Cr) has become a serious pollutant in diverse …

A simple procedure for cloning and stable insertion of foreign genes into the chromosomes
of gram-negative eubacteria was developed by combining in two sets of plasmids (i) the …

Bacterial plasmids encode resistance systems for toxic metal ions including Ag+, AsO2−,
AsO43−, Cd2+, Co2+, CrO42−, Cu2+, Hg2+, Ni2+, Pb2+, Sb3+, TeO32−, Tl+, and Zn2+. In …

New textbooks at all levels of chemistry appear with great regularity. Some fields like basic
biochemistry, organic reaction mechanisms, and chemical thermody namics are well …

Sequences and available structures were compared for all the widely distributed
representatives of the P-loop GTPases and GTPase-related proteins with the aim of …

All living organisms have systems for arsenic detoxification. The common themes are (a)
uptake of As (V) in the form of arsenate by phosphate transporters,(b) uptake of As (III) in the …