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| | ==X-ray crystal structure determination of fully perdeuterated rubredoxin at 100K== | | ==X-ray crystal structure determination of fully perdeuterated rubredoxin at 100K== |
| - | <StructureSection load='3kyu' size='340' side='right' caption='[[3kyu]], [[Resolution|resolution]] 1.10Å' scene=''> | + | <StructureSection load='3kyu' size='340' side='right'caption='[[3kyu]], [[Resolution|resolution]] 1.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3kyu]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_43587 Atcc 43587]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KYU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3KYU FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3kyu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pyrococcus_furiosus Pyrococcus furiosus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3KYU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3KYU FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.1Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3kyv|3kyv]], [[3kyw|3kyw]], [[3kyx|3kyx]], [[3kyy|3kyy]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DOD:DEUTERATED+WATER'>DOD</scene>, <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">rub, PF1282 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2261 ATCC 43587])</td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3kyu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kyu OCA], [https://pdbe.org/3kyu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3kyu RCSB], [https://www.ebi.ac.uk/pdbsum/3kyu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3kyu ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3kyu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kyu OCA], [http://pdbe.org/3kyu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3kyu RCSB], [http://www.ebi.ac.uk/pdbsum/3kyu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3kyu ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/RUBR_PYRFU RUBR_PYRFU]] Rubredoxin is a small nonheme, iron protein lacking acid-labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule. | + | [https://www.uniprot.org/uniprot/RUBR_PYRFU RUBR_PYRFU] Rubredoxin is a small nonheme, iron protein lacking acid-labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule. |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| | Check<jmol> | | Check<jmol> |
| | <jmolCheckbox> | | <jmolCheckbox> |
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/3kyu_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ky/3kyu_consurf.spt"</scriptWhenChecked> |
| | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> |
| | <text>to colour the structure by Evolutionary Conservation</text> | | <text>to colour the structure by Evolutionary Conservation</text> |
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| | </div> | | </div> |
| | <div class="pdbe-citations 3kyu" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 3kyu" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Rubredoxin 3D structures|Rubredoxin 3D structures]] |
| | + | *[[Rubredoxin PDB structures|Rubredoxin PDB structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 43587]] | + | [[Category: Large Structures]] |
| - | [[Category: Gardberg, A S]] | + | [[Category: Pyrococcus furiosus]] |
| - | [[Category: Electron transport]] | + | [[Category: Gardberg AS]] |
| - | [[Category: Iron]]
| + | |
| - | [[Category: Metal-binding]]
| + | |
| - | [[Category: Transport]]
| + | |
| Structural highlights
Function
RUBR_PYRFU Rubredoxin is a small nonheme, iron protein lacking acid-labile sulfide. Its single Fe, chelated to 4 Cys, functions as an electron acceptor and may also stabilize the conformation of the molecule.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The locations of H atoms in biological structures can be difficult to determine using X-ray diffraction methods. Neutron diffraction offers a relatively greater scattering magnitude from H and D atoms. Here, 1.65 A resolution neutron diffraction studies of fully perdeuterated and selectively CH(3)-protonated perdeuterated crystals of Pyrococcus furiosus rubredoxin (D-rubredoxin and HD-rubredoxin, respectively) at room temperature (RT) are described, as well as 1.1 A resolution X-ray diffraction studies of the same protein at both RT and 100 K. The two techniques are quantitatively compared in terms of their power to directly provide atomic positions for D atoms and analyze the role played by atomic thermal motion by computing the sigma level at the D-atom coordinate in simulated-annealing composite D-OMIT maps. It is shown that 1.65 A resolution RT neutron data for perdeuterated rubredoxin are approximately 8 times more likely overall to provide high-confidence positions for D atoms than 1.1 A resolution X-ray data at 100 K or RT. At or above the 1.0sigma level, the joint X-ray/neutron (XN) structures define 342/378 (90%) and 291/365 (80%) of the D-atom positions for D-rubredoxin and HD-rubredoxin, respectively. The X-ray-only 1.1 A resolution 100 K structures determine only 19/388 (5%) and 8/388 (2%) of the D-atom positions above the 1.0sigma level for D-rubredoxin and HD-rubredoxin, respectively. Furthermore, the improved model obtained from joint XN refinement yielded improved electron-density maps, permitting the location of more D atoms than electron-density maps from models refined against X-ray data only.
Unambiguous determination of H-atom positions: comparing results from neutron and high-resolution X-ray crystallography.,Gardberg AS, Del Castillo AR, Weiss KL, Meilleur F, Blakeley MP, Myles DA Acta Crystallogr D Biol Crystallogr. 2010 May;66(Pt 5):558-67. Epub 2010, Apr 21. PMID:20445231[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Gardberg AS, Del Castillo AR, Weiss KL, Meilleur F, Blakeley MP, Myles DA. Unambiguous determination of H-atom positions: comparing results from neutron and high-resolution X-ray crystallography. Acta Crystallogr D Biol Crystallogr. 2010 May;66(Pt 5):558-67. Epub 2010, Apr 21. PMID:20445231 doi:10.1107/S0907444910005494
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