1e8j
From Proteopedia
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| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1e8j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1e8j OCA], [http://www.ebi.ac.uk/pdbsum/1e8j PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1e8j RCSB]</span> | ||
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[[Category: zinc-substitution]] | [[Category: zinc-substitution]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:57:30 2008'' |
Revision as of 16:57, 30 March 2008
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
SOLUTION STRUCTURE OF DESULFOVIBRIO GIGAS ZINC RUBREDOXIN, NMR, 20 STRUCTURES
Overview
Rubredoxins are small, soluble proteins that display a wide variation in thermostability, despite having a high degree of sequence similarity They also vary in the extent to which they are stabilized by solutes such as diglycerol phosphate. Hence, they provide excellent models for studying the mechanisms of thermostabilization. Nuclear magnetic resonance (NMR) spectroscopy can be used to investigate interactions between molecules, as well as subtle changes in conformation in solution, and also provides a means to measure protein stability. The assignment of the proton NMR spectrum of the zinc rubredoxin from Desulfovibrio gigas is presented, together with its structure in solution. The stabilizing effect of diglycerol phosphate on rubredoxin is demonstrated and assessed by determining selected amide proton exchange rates; diglycerol phosphate at 100 mM concentration caused an additional structural stabilization of 1.2 +/-0.4 kJ/mol. The pattern of effects on the exchange rates is discussed in relation to the protein structure.
About this Structure
1E8J is a Single protein structure of sequence from Desulfovibrio gigas. Full crystallographic information is available from OCA.
Reference
NMR structure of Desulfovibrio gigas rubredoxin: a model for studying protein stabilization by compatible solutes., Lamosa P, Brennan L, Vis H, Turner DL, Santos H, Extremophiles. 2001 Oct;5(5):303-11. PMID:11699644
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