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2a7d

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[[Image:2a7d.gif|left|200px]]
[[Image:2a7d.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 2a7d |SIZE=350|CAPTION= <scene name='initialview01'>2a7d</scene>, resolution 1.66&Aring;
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The line below this paragraph, containing "STRUCTURE_2a7d", creates the "Structure Box" on the page.
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|SITE=
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|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=XE:XENON'>XE</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span>
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{{STRUCTURE_2a7d| PDB=2a7d | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2a7d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a7d OCA], [http://www.ebi.ac.uk/pdbsum/2a7d PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2a7d RCSB]</span>
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'''On the Routine Use of Soft X-Rays in Macromolecular Crystallography, Part III- The Optimal Data Collection Wavelength'''
'''On the Routine Use of Soft X-Rays in Macromolecular Crystallography, Part III- The Optimal Data Collection Wavelength'''
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[[Category: Tucker, P A.]]
[[Category: Tucker, P A.]]
[[Category: Weiss, M S.]]
[[Category: Weiss, M S.]]
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[[Category: hydrolase]]
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[[Category: Hydrolase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 18:42:09 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:48:57 2008''
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Revision as of 15:42, 3 May 2008

Image:2a7d.gif

Template:STRUCTURE 2a7d

On the Routine Use of Soft X-Rays in Macromolecular Crystallography, Part III- The Optimal Data Collection Wavelength


Overview

Complete and highly redundant data sets were collected at different wavelengths between 0.80 and 2.65 A for a total of ten different protein and DNA model systems. The magnitude of the anomalous signal-to-noise ratio as assessed by the quotient R(anom)/R(r.i.m.) was found to be influenced by the data-collection wavelength and the nature of the anomalously scattering substructure. By utilizing simple empirical correlations, for instance between the estimated deltaF/F and the expected R(anom) or the data-collection wavelength and the expected R(r.i.m.), the wavelength at which the highest anomalous signal-to-noise ratio can be expected could be estimated even before the experiment. Almost independent of the nature of the anomalously scattering substructure and provided that no elemental X-ray absorption edge is nearby, this optimal wavelength is 2.1 A.

About this Structure

2A7D is a Single protein structure of sequence from Gallus gallus. Full crystallographic information is available from OCA.

Reference

On the routine use of soft X-rays in macromolecular crystallography. Part III. The optimal data-collection wavelength., Mueller-Dieckmann C, Panjikar S, Tucker PA, Weiss MS, Acta Crystallogr D Biol Crystallogr. 2005 Sep;61(Pt 9):1263-72. Epub 2005, Aug 16. PMID:16131760 Page seeded by OCA on Sat May 3 18:42:09 2008

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