2ezb: Difference between revisions
New page: left|200px<br /><applet load="2ezb" size="450" color="white" frame="true" align="right" spinBox="true" caption="2ezb" /> '''AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHE... |
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'''AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHERICHIA COLI, NMR, 14 STRUCTURES'''<br /> | '''AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHERICHIA COLI, NMR, 14 STRUCTURES'''<br /> | ||
==Overview== | ==Overview== | ||
Structure determination by NMR presently relies on short range restraints | Structure determination by NMR presently relies on short range restraints between atoms in close spatial proximity, principally in the form of short (< 5 A) interproton distances. In the case of modular or multidomain proteins and linear nucleic acids, the density of short interproton distance contacts between structural elements far apart in the sequence may be insufficient to define their relative orientations. In this paper we show how the dependence of heteronuclear longitudinal and transverse relaxation times on the rotational diffusion anisotropy of non-spherical molecules can be readily used to directly provide restraints for simulated annealing structure refinement that characterize long range order a priori. The method is demonstrated using the N-terminal domain of Enzyme I,a protein of 259 residues comprising two distinct domains with a diffusion anisotropy(Dparallel/Dperpendicular)of approximately 2. | ||
==About this Structure== | ==About this Structure== | ||
2EZB is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Active as [http://en.wikipedia.org/wiki/Phosphoenolpyruvate--protein_phosphotransferase Phosphoenolpyruvate--protein phosphotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.3.9 2.7.3.9] Full crystallographic information is available from [http:// | 2EZB is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Active as [http://en.wikipedia.org/wiki/Phosphoenolpyruvate--protein_phosphotransferase Phosphoenolpyruvate--protein phosphotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.3.9 2.7.3.9] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2EZB OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: Phosphoenolpyruvate--protein phosphotransferase]] | [[Category: Phosphoenolpyruvate--protein phosphotransferase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Clore, G | [[Category: Clore, G M.]] | ||
[[Category: Garrett, D | [[Category: Garrett, D S.]] | ||
[[Category: Gronenborn, A | [[Category: Gronenborn, A M.]] | ||
[[Category: Tjandra, N.]] | [[Category: Tjandra, N.]] | ||
[[Category: kinase]] | [[Category: kinase]] | ||
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[[Category: transferase]] | [[Category: transferase]] | ||
''Page seeded by [http:// | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 17:16:03 2008'' | ||
Revision as of 18:16, 21 February 2008
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AMINO TERMINAL DOMAIN OF ENZYME I FROM ESCHERICHIA COLI, NMR, 14 STRUCTURES
OverviewOverview
Structure determination by NMR presently relies on short range restraints between atoms in close spatial proximity, principally in the form of short (< 5 A) interproton distances. In the case of modular or multidomain proteins and linear nucleic acids, the density of short interproton distance contacts between structural elements far apart in the sequence may be insufficient to define their relative orientations. In this paper we show how the dependence of heteronuclear longitudinal and transverse relaxation times on the rotational diffusion anisotropy of non-spherical molecules can be readily used to directly provide restraints for simulated annealing structure refinement that characterize long range order a priori. The method is demonstrated using the N-terminal domain of Enzyme I,a protein of 259 residues comprising two distinct domains with a diffusion anisotropy(Dparallel/Dperpendicular)of approximately 2.
About this StructureAbout this Structure
2EZB is a Single protein structure of sequence from Escherichia coli. Active as Phosphoenolpyruvate--protein phosphotransferase, with EC number 2.7.3.9 Full crystallographic information is available from OCA.
ReferenceReference
Defining long range order in NMR structure determination from the dependence of heteronuclear relaxation times on rotational diffusion anisotropy., Tjandra N, Garrett DS, Gronenborn AM, Bax A, Clore GM, Nat Struct Biol. 1997 Jun;4(6):443-9. PMID:9187651
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