1n9f: Difference between revisions

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[[Image:1n9f.jpg|left|200px]]
{{Seed}}
[[Image:1n9f.png|left|200px]]


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{{STRUCTURE_1n9f|  PDB=1n9f  |  SCENE=  }}  
{{STRUCTURE_1n9f|  PDB=1n9f  |  SCENE=  }}  


'''Structure of earth-grown oxidized Myoglobin mutant YQR (ISS6A)'''
===Structure of earth-grown oxidized Myoglobin mutant YQR (ISS6A)===




==Overview==
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Crystals of the Met derivative of the sperm whale myoglobin triple mutant Mb-YQR [L(B10)Y, H(E7)Q and T(E10)R] were grown under microgravity conditions and on earth by vapour diffusion. A comparison of crystal quality after complete data collection and processing shows how microgravity-grown crystals diffract to better resolution and lead to considerably improved statistics for X-ray diffraction data compared with crystals grown on earth under the same conditions. The same set of experiments was reproduced on two different Spacelab missions (ISS 6A and ISS 8A) in 2001 and 2002. The structure of this mutant myoglobin, refined using data collected at ELETTRA (Trieste, Italy) from both kinds of crystals, shows that X-ray diffraction from microgravity-grown crystals leads to better defined electron-density maps as well as improved geometrical quality of the refined model. Improvement of the stereochemical parameters of a protein structure is fundamental to quantitative analysis of its function and dynamics and hence to thorough understanding of the molecular mechanisms of action.
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{{ABSTRACT_PUBMED_12777759}}


==About this Structure==
==About this Structure==
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[[Category: Vallone, B.]]
[[Category: Vallone, B.]]
[[Category: Globin fold]]
[[Category: Globin fold]]
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Revision as of 13:03, 29 July 2008

File:1n9f.png

Template:STRUCTURE 1n9f

Structure of earth-grown oxidized Myoglobin mutant YQR (ISS6A)

Template:ABSTRACT PUBMED 12777759

About this Structure

1N9F is a Single protein structure of sequence from Physeter catodon. Full crystallographic information is available from OCA.

Reference

Analysis of the effect of microgravity on protein crystal quality: the case of a myoglobin triple mutant., Miele AE, Federici L, Sciara G, Draghi F, Brunori M, Vallone B, Acta Crystallogr D Biol Crystallogr. 2003 Jun;59(Pt 6):982-8. Epub 2003, May 23. PMID:12777759

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