Molecular Enzymology Group Colloquium Organized by D. Fell (School of Biological and Molecular Sciences, Oxford Brooke University) and D. Kell (Department of Biological Sciences, University College, Wales, Aberystwyth), Edited by D. Fell and Sponsored by Xenova Ltd, Zeneca Bioproducts, Glaxo Research and Development Ltd and SmithKline Beecham Pharmaceuticals. 653rd Meeting held at the Universit...

Accurate, economical and high-throughput gene and genome synthesis is essential to the development of synthetic biology and biotechnology. New large-scale gene synthesis methods harnessing the power of DNA microchips have recently been demonstrated. Yet, the technology is still compromised by a high occurrence of errors in the synthesized products. These errors still require substantial effort ...

Acacia crassicarpa has a potential source as renewable forest material in Indonesia. This research clarified the conditions to produce dissolving pulp with suitable properties from A. wood by prehydrolysis at 150℃ for 3 h and soda cooking 160℃ application of 0.1％ soluble anthraquinone （SAQ：1,4-dihydro-9,10-dihydroxyanthracene sodium salt）. The presence SAQ exhibited significant increase yield （...

Introd u ction Clinical chemistry, for decades restricted to a limited number of chemical tests, has, in recent years, through an increasing awareness of the value of the laboratory investigation of disease, and the introduc­ tion of automation and sophisticated instru­ mentation, expanded its field of operations to include a bewildering variety of tests. Advances in biochemical knowledge have ...

Corn stalk can be used as an alternative non-wood raw material to produce cellulosic dissolving grade pulp. In this work, the potential of corn stalk in the production of dissolving pulp (alpha-cellulose) was investigated. It was collect ed from a corn stalk farm of Kermanshah, Iran. The sequences of experimental work were: water and acid prehydrolysis at 160˚C for 30min, followed by Kraft pulp...

DEXD/H-box RNA helicases couple ATP hydrolysis to RNA remodeling by an unknown mechanism. We used x-ray crystallography and biochemical analysis of the human DEXD/H-box protein DDX19 to investigate its regulatory mechanism. The crystal structures of DDX19, in its RNA-bound prehydrolysis and free posthydrolysis state, reveal an alpha-helix that inserts between the conserved domains of the free p...

a new method for the synthesis of water soluble polyaniline (pani) using hemin chloride (h.c) in the presence of hydrogen peroxide (h.p) is presented. hemin chloride is an effective catalyst for the oxidative polymerization of aniline in the presence of hydrogen peroxide at room temperature. the uv- vis absorption spectra of the product show a distinct absorption peak at 430 nm in ph 4.0 b...

Most surgeons seem to favour the former method. Even when the erisophake is used instead of forceps, the technique of zonulolotomy and delivery of the lens remains essentially the same. Since the introduction of A.C.T., however, mechanical zonulolotomy has been replaced by enzymatic zonulolysis and the extraction of the lens by seizing it at the 12 o'clock position is being increasingly practis...