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The following position will shortly be advertised: MUCAB Protein Structure Group School of Chemistry Macquarie University, Sydney, Australia Protein NMR Spectroscopist Salary: Research Associate ($38,092 - 40,889, subject to approval) A two-year postdoctoral position is available immediately to determine the NMR structure of various proteins within the Protein Structure Group at Macquarie University, Sydney. The successful applicant will primarily work to define a protein fold thought to be representative of a new family of cell-cell adhesion molecules. Spectra obtained to date on this surface glycoprotein (MW=15kDa) are of very high quality (Zachara et al., Eur. J. Biochem. 238, 511-518, 1996) and milligram quantities of the 15N-labelled recombinant protein are routinely prepared in this laboratory. The Protein Structure Group is focussed on several proteins involved in cellular adhesion and regulation. It is staffed by a multidisciplinary team encompassing molecular biology, protein expression and NMR structure determination. We are a component of the Macquarie University Centre for Analytical Biotechnology, and are closely associated with the Australian Proteome Analysis Facility, which together form the major centre for protein research in the Sydney region. The Group is also part of IBiS (Initiative in Biomolecular Structure), a multidisciplinary forum addressing NMR, crystallography and computer techniques in structural biology. A new 600 MHz NMR spectrometer will be installed in the School of Chemistry in 1997. In the interim, generous access to a DMX-600 spectrometer (with pulse-field gradient capability) is available nearby at the University of New South Wales. Other resources include state-of-the art protein purification and analysis equipment, and a cluster of dedicated Silicon Graphics workstations. Applicants should have a Ph.D. in Chemistry, Biochemistry or related field. Experience in the recording and analysis of heteronuclear multidimensional NMR spectra of proteins is essential, as is familiarity with UNIX and NMR processing packages. Appointment is available immediately, initially until December 1997, and is renewable subject to grant funding. Applications will close early February 1997. For further information concerning applications contact: Dr Bridget Mabbutt, School of Chemistry, email: bridget.mabbutt@mq.edu.au, telephone: (61 2) 9850 8282, fax: (61 2) 9850 8313Return to Top
Hi there! If it is MRI you are interested in, take a look at http://www.sparta.lu.se/~jonas/MR.html I intended to make a MRI page a while ago and collected the links you'll find there. Some of the links might be a bit old though, but it is worth a try... /jonas jonas.svensson@rfa.mas.lu.seReturn to Top
Does anyone know the mathematical details of automatic zero-order phase correction of NMR-spectra ? -- Ib Therkelsen Copenhagen, DenmarkReturn to Top
Ib TherkelsenReturn to Topwrote: >Does anyone know the mathematical details of automatic zero-order phase >correction of NMR-spectra ? >-- >Ib Therkelsen >Copenhagen, Denmark Hi, there are probably different approaches. If I had to do it, however, I would start playing with the so-called DISPA plots (dispersion vs. absorption). For a properly phased and normalized peak of Lorentzian shape, this gives a circle of diameter 1.0 centered at x = 0.5, y = 0. Any phase twist will rotate this circle about the origin (i.e. the angle between the center of the circle and the x axis should give the required phase angle). See for example: Alan G. Marshall, Francis R. Verdun, "Fourier Transforms in NMR, Optical, and Mass Spectrometry", Elsevier, 1990, p.53 ff. Good luck, Klaus -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Klaus Eichele keichele@is.dal.ca http://is.dal.ca/~keichele/keichele.html