Acidic wetlands are global sources of the atmospheric greenhouse gases methane (CH(4)), and nitrous oxide (N(2)O). Consumption of both atmospheric gases has been observed in various acidic wetlands, but information on the microbial mechanisms underlying these phenomena is scarce. A substantial amount of CH(4) is consumed in sub soil by aerobic methanotrophs at anoxic-oxic interfaces (e.g., tiss...

Calf thymus nuclei contain a histone-binding protein which specifically deacetylates histone Fractions F2Al and F3 by a hydrolytic cleavage of E-N-acetyllysyl residues. The protein has been purified over 500-fold by a combination of exclusion chromatography and isoelectric focusing techniques. It is acidic, as judged by its amino acid composition, and by its isoelectric point (pH 4.5). The prot...

Mesoporous silica can be synthesized by either the alkaline route or the acidic route, both using surfactants as templates. Morphological transformations of mesoporous silica can produce various hierarchical orders. Different morphologies are produced under different synthetic conditions. In the alkaline route, the surfactant/silicate liquid crystal system undergoes phase transformation to form...

ity. The amino acid composition will provide a fi rst indication: before choosing a solvent, the sequence should be studied and the number of acidic, basic and neutral residues should be determined. The side-chain functionalities of acidic and basic amino acids will be charged at physiological pH. The nature of the Nand the C-terminal functionality has to be taken into consideration. The neutra...

Calf thymus nuclei contain a histone-binding protein which specifically deacetylates histone Fractions F2Al and F3 by a hydrolytic cleavage of E-N-acetyllysyl residues. The protein has been purified over 500-fold by a combination of exclusion chromatography and isoelectric focusing techniques. It is acidic, as judged by its amino acid composition, and by its isoelectric point (pH 4.5). The prot...