The first enzyme picture show

Johnson, Louise
December 1991
New Scientist;12/14/91, Vol. 132 Issue 1799, p30
Provides a historical overview of the use of intense X-rays from synchrotrons to take a sequence of snapshots that show enzymes in action. Technique of studying crystals by X-ray diffraction; Bragg's law; Development of the first enzyme structure called lysozyme; Problems with extending X-ray crystallography to other enzymes; Applications of the Laue method to the study of enzyme-catalyzed reactions. INSETS: Nature's answer to slow chemistry.;How X-rays from electrons make Laue patterns..


Related Articles

  • Crystallization and Preliminary X-ray Analysis of Complexes of Porcine Pancreatic Elastase with two Natural Inhibitors. Hilpert, Kai; Wessner, Helga; Scholz, Christa; Scheerer, Patrick; Volkmer-Engert, Rudolf; Krauß, Norbert // Protein & Peptide Letters;Aug2004, Vol. 11 Issue 4, p393 

    Two different natural protease inhibitors, the squash inhibitor MCEI III and the third domain of turkey ovomucoid inhibitor OMTKY3, were crystallized in complexes with porcine pancreatic elastase (PPE). About 700 conditions were screened altogether. Crystals of the complex between MCEI III and...

  • Scanning x-ray stepper for synchrotron radiation. Cullmann, E.; Vach, W.; Cooper, K. // Review of Scientific Instruments;Jul1989, Vol. 60 Issue 7, p2150 

    With the SUSS XRS 200 a synchrotron compatible stepper is available which combines high positional accuracy and high throughput using the scanning exposure method. With 1 s each for exposure, alignment, and stepping time, 20 6-in. wafers/h can be processed with the smallest stepfield size of 26...

  • Operational experience of NSLS storage rings (invited) (abstract). Krinsky, S. // Review of Scientific Instruments;Jul1989, Vol. 60 Issue 7, p1387 

    We review the operating experience at the National Synchrotron Light Source on the VUV and x-ray storage rings, with particular consideration given to achieved current and lifetime, transverse bunch dimensions, and orbit stability. The status of the Phase II upgrade will be discussed, as will...

  • New X-ray source makes fine line in chips. Hecht, Jeff // New Scientist;7/7/90, Vol. 127 Issue 1724, p31 

    Reports that plasma physicists at Cornell University in Ithaca, New York, have demonstrated an X-ray source which works by a method called X-pinch sources. Race among companies in Japan, Great Britain and the United States in the development of intense sources of X-rays, known as synchrotrons,...

  • Corrections.  // Archaeology;Jan/Feb2010, Vol. 63 Issue 1, p8 

    Corrections to the articles “Irish Gold” and "The Subatomic Dig," both of which were published in the November/December 2009 issue, are presented.

  • Direct Comparison of the Crystal and Solution Structure of Xylanase from Trichoderma Longibrachiatum. Kozak, Maciej // Protein & Peptide Letters;Aug2004, Vol. 11 Issue 4, p301 

    The small angle X-ray scattering (SAXS) data of xylanase XYNII (endo-1,4-β-xylan xylanohydrolase EC from Trichoderma longibrachiatum, an enzyme catalysing the reaction of accidental hydrolysis of β-1,4-D-xylosidic linkages of xylan, were recorded for protein solution using...

  • X-ray detection characteristics of microchannel plates in the energy range from 1.8 to 8 keV. Yamaguchi, N.; Cho, T.; Kondoh, T.; Hirata, M.; Miyoshi, S.; Aoki, S.; Maezawa, H.; Nomura, M. // Review of Scientific Instruments;Mar89, Vol. 60 Issue 3, p368 

    The characteristics of microchannel plates (MCPs) for detection of x rays have been investigated using synchrotron radiation in the energy range from 1.8 to 8 keV. The current response curve of MCPs is measured with approximately continuous x-ray energy variation, which is added to the previous...

  • BIOLOGICAL PHYSICS. Feder, Ralph // Physics Today;Jan86, Vol. 39 Issue 1, pS-12 

    Focuses on the applications of contact x-ray microscopy in the United States. Use of x-ray sources and high magnification of an electron microscope; Procedure on contact x-ray microscopy; Availability of synchrotron as source for soft x rays.

  • Challenge to precise magnetic Compton-profile measurements (invited). Sakai, N.; Shiotani, N.; Ito, M.; Itoh, F.; Kawata, H.; Amemiya, Y.; Ando, M.; Yamamoto, S.; Kitamura, H. // Review of Scientific Instruments;Jul1989, Vol. 60 Issue 7, p1666 

    Recent developments of the insertion devices have made it possible to utilize intense hard x rays for precise Compton-profile measurements. A Compton profile of Si ( 110), which is measured using 29.5-keV synchrotron-radiation x rays, is shown as an example of a precise measurement having a...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics