1tew

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{{STRUCTURE_1tew| PDB=1tew | SCENE= }}
{{STRUCTURE_1tew| PDB=1tew | SCENE= }}
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'''STRUCTURE OF HEXAGONAL TURKEY EGG WHITE LYSOZYME AT 1.65 ANGSTROMS RESOLUTION'''
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===STRUCTURE OF HEXAGONAL TURKEY EGG WHITE LYSOZYME AT 1.65 ANGSTROMS RESOLUTION===
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==Overview==
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The structure of hexagonal turkey egg-white lysozyme (TEWL) has been determined and refined at 1.65 A resolution. The crystals were grown from a 150 mM potassium thiocyanate solution at pH 4.5 and belong to space group P6(1)22 with unit-cell dimensions a = b = 70.96, c = 83.01 A alpha = beta = 90, gamma = 120 degrees. The crystals were isomorphous with those of hexagonal pH 8.0 TEWL. The coordinates of PDB entry code 3LZ2 were therefore used as the initial model and subjected to rigid-body refinement, simulated annealing and least-squares refinement to a final residual of 0.20. The root-mean-square deviations from the ideal bond distances and angles were 0.016 A and 2.2 degrees, respectively. During the refinement, 86 water molecules and one thiocyanate ion were located in the structure. The thiocyanate ion lies close to the interface between two symmetry-related molecules. The S atom of the ion forms two direct intermolecular contacts with Argl4 and interacts indirectly via a network of water molecules to Arg5 of a symmetry-related molecule. The structure provides direct evidence for the mode of thiocyanate binding to arginine residues and suggests a possible mechanism for the efficiency of thiocyanate in crystallizing basic proteins.
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(as it appears on PubMed at http://www.pubmed.gov), where 15299795 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15299795}}
==About this Structure==
==About this Structure==
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[[Category: Single protein]]
[[Category: Single protein]]
[[Category: Howell, P L.]]
[[Category: Howell, P L.]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:52:02 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 16:18:06 2008''

Revision as of 13:18, 27 July 2008

Image:1tew.png

Template:STRUCTURE 1tew

STRUCTURE OF HEXAGONAL TURKEY EGG WHITE LYSOZYME AT 1.65 ANGSTROMS RESOLUTION

Template:ABSTRACT PUBMED 15299795

About this Structure

1TEW is a Single protein structure of sequence from Meleagris gallopavo. Full crystallographic information is available from OCA.

Reference

Structure of hexagonal turkey egg-white lysozyme at 1.65A resolution., Howell PL, Acta Crystallogr D Biol Crystallogr. 1995 Sep 1;51(Pt 5):654-62. PMID:15299795

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