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New page: left|200px<br /><applet load="1r1n" size="450" color="white" frame="true" align="right" spinBox="true" caption="1r1n, resolution 1.74Å" /> '''Tri-nuclear oxo-iron...
 
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[[Image:1r1n.gif|left|200px]]<br /><applet load="1r1n" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1r1n, resolution 1.74&Aring;" />
'''Tri-nuclear oxo-iron clusters in the ferric binding protein from N. gonorrhoeae'''<br />


==Overview==
==Tri-nuclear oxo-iron clusters in the ferric binding protein from N. gonorrhoeae==
We report a set of three 1.8-1.9 A resolution X-ray crystal structures of, Neisseria gonorrhoeae Fbp (ferric-ion binding protein): (i) open-cleft, apo-Fbp containing bound phosphate, (ii) open-cleft mono-Fe Fbp capped by, nitrilotriacetate, and (iii) open-cleft trinuclear oxo-iron Fbp, the first, structure of an iron-cluster adduct of a transferrin. The nine independent, molecules in the unit cells provide 'snapshots' of the versatile dynamic, structural roles of the conserved dityrosyl iron-binding motif, (Tyr195-Tyr196) which control the capture and, possibly, processing of, iron. These findings have implications for understanding bacterial iron, acquisition and dissimilation, and organic/mineral interfaces.
<StructureSection load='1r1n' size='340' side='right'caption='[[1r1n]], [[Resolution|resolution]] 1.74&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1r1n]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Neisseria_gonorrhoeae Neisseria gonorrhoeae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1R1N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1R1N FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.74&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CN1:OXO-IRON+CLUSTER+2'>CN1</scene>, <scene name='pdbligand=CNB:OXO-IRON+CLUSTER+1'>CNB</scene>, <scene name='pdbligand=CNF:OXO-IRON+CLUSTER+3'>CNF</scene></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=1r1n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r1n OCA], [https://pdbe.org/1r1n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1r1n RCSB], [https://www.ebi.ac.uk/pdbsum/1r1n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1r1n ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FBP_NEIGO FBP_NEIGO] This protein may be a central component in the iron-acquisition system.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/r1/1r1n_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1r1n ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We report a set of three 1.8-1.9 A resolution X-ray crystal structures of Neisseria gonorrhoeae Fbp (ferric-ion binding protein): (i) open-cleft apo-Fbp containing bound phosphate, (ii) open-cleft mono-Fe Fbp capped by nitrilotriacetate, and (iii) open-cleft trinuclear oxo-iron Fbp, the first structure of an iron-cluster adduct of a transferrin. The nine independent molecules in the unit cells provide 'snapshots' of the versatile dynamic structural roles of the conserved dityrosyl iron-binding motif (Tyr195-Tyr196) which control the capture and, possibly, processing of iron. These findings have implications for understanding bacterial iron acquisition and dissimilation, and organic/mineral interfaces.


==About this Structure==
Oxo-iron clusters in a bacterial iron-trafficking protein: new roles for a conserved motif.,Zhu H, Alexeev D, Hunter DJ, Campopiano DJ, Sadler PJ Biochem J. 2003 Nov 15;376(Pt 1):35-41. PMID:13129433<ref>PMID:13129433</ref>
1R1N is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Neisseria_gonorrhoeae Neisseria gonorrhoeae] with CNB, CN1 and CNF as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1R1N OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Oxo-iron clusters in a bacterial iron-trafficking protein: new roles for a conserved motif., Zhu H, Alexeev D, Hunter DJ, Campopiano DJ, Sadler PJ, Biochem J. 2003 Nov 15;376(Pt 1):35-41. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=13129433 13129433]
</div>
<div class="pdbe-citations 1r1n" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Ferric-binding protein|Ferric-binding protein]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Neisseria gonorrhoeae]]
[[Category: Neisseria gonorrhoeae]]
[[Category: Single protein]]
[[Category: Alexeev D]]
[[Category: Alexeev, D.]]
[[Category: Campopiano DJ]]
[[Category: Campopiano, D.J.]]
[[Category: Hunter DJ]]
[[Category: Hunter, D.J.]]
[[Category: Sadler PJ]]
[[Category: Sadler, P.J.]]
[[Category: Zhu H]]
[[Category: Zhu, H.]]
[[Category: CN1]]
[[Category: CNB]]
[[Category: CNF]]
[[Category: iron binding protein]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 01:12:09 2007''

Latest revision as of 09:40, 25 December 2024

Tri-nuclear oxo-iron clusters in the ferric binding protein from N. gonorrhoeae

1r1n, resolution 1.74Å

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