1doy: Difference between revisions
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|PDB= 1doy |SIZE=350|CAPTION= <scene name='initialview01'>1doy</scene> | |PDB= 1doy |SIZE=350|CAPTION= <scene name='initialview01'>1doy</scene> | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=FES:FE2/S2 (INORGANIC) CLUSTER'>FES</scene> | |LIGAND= <scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene> | ||
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
|DOMAIN= | |||
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1doy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1doy OCA], [http://www.ebi.ac.uk/pdbsum/1doy PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1doy RCSB]</span> | |||
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[[Category: Neumann, J M.]] | [[Category: Neumann, J M.]] | ||
[[Category: Setif, P.]] | [[Category: Setif, P.]] | ||
[[Category: iron-sulfur protein]] | [[Category: iron-sulfur protein]] | ||
''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 19:45:51 2008'' | ||
Revision as of 19:45, 30 March 2008
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
1H AND 15N SEQUENTIAL ASSIGNMENT, SECONDARY STRUCTURE AND TERTIARY FOLD OF [2FE-2S] FERREDOXIN FROM SYNECHOCYSTIS SP. PCC 6803
OverviewOverview
The [2Fe-2S] ferredoxin extracted from Synechocystis sp. PCC 6803 was studied by 1H and 15N nuclear magnetic resonance. Sequence-specific 1H and 15N assignment of amino acid residues far from the paramagnetic cluster (distance higher than 8 A) was performed. Interresidue NOE constraints have allowed the identification of several secondary structure elements: one beta sheet composed of four beta strands, one alpha helix, and two alpha helix turns. The analysis of interresidue NOEs suggests the existence of a disulfide bridge between the cysteine residues 18 and 85. Such a disulfide bridge has never been observed in plant-type ferredoxins. Structure modeling using the X-PLOR program was performed with or without assuming the existence of a disulfide bridge. As a result, two structure families were obtained with rms deviations of 2.2 A. Due to the lack of NOE connectivities resulting from the paramagnetic effect from the [2Fe-2S] cluster, the structures were not well resolved in the region surrounding the [2Fe-2S] cluster, at both extremities of the alpha helix and the C and N terminus segments. In contrast, when taken separately, the beta sheet and the alpha helix were well defined. This work is the first report of a structure model of a plant-type [2Fe-2S] Fd in solution.
About this StructureAbout this Structure
1DOY is a Single protein structure of sequence from Synechocystis sp.. Full crystallographic information is available from OCA.
ReferenceReference
1H and 15N NMR sequential assignment, secondary structure, and tertiary fold of [2Fe-2S] ferredoxin from Synechocystis sp. PCC 6803., Lelong C, Setif P, Bottin H, Andre F, Neumann JM, Biochemistry. 1995 Nov 7;34(44):14462-73. PMID:7578051
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