2a7a: Difference between revisions
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|PDB= 2a7a |SIZE=350|CAPTION= <scene name='initialview01'>2a7a</scene>, resolution 1.75Å | |PDB= 2a7a |SIZE=350|CAPTION= <scene name='initialview01'>2a7a</scene>, resolution 1.75Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand= | |LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=XE:XENON'>XE</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
|RELATEDENTRY=[[1cnv|1CNV]] | |||
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2a7a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a7a OCA], [http://www.ebi.ac.uk/pdbsum/2a7a PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2a7a RCSB]</span> | |||
}} | }} | ||
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[[Category: Tucker, P A.]] | [[Category: Tucker, P A.]] | ||
[[Category: Weiss, M S.]] | [[Category: Weiss, M S.]] | ||
[[Category: lectin]] | [[Category: lectin]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:48:47 2008'' | ||
Revision as of 01:48, 31 March 2008
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| , resolution 1.75Å | |||||||
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| Ligands: | , , | ||||||
| Related: | 1CNV
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
On the Routine Use of Soft X-Rays in Macromolecular Crystallography, Part III- The Optimal Data Collection Wavelength
OverviewOverview
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 StructureAbout this Structure
2A7A is a Single protein structure of sequence from Canavalia virosa. Full crystallographic information is available from OCA.
ReferenceReference
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
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