2cn6: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
← Older editNewer edit →
No edit summary
No edit summary
Line 1: Line 1:
[[Image:2cn6.png|left|200px]]
==RECOMBINANT HUMAN H FERRITIN, K86Q AND E107D MUTANT, SOAKED WITH ZN IONS==
<StructureSection load='2cn6' size='340' side='right' caption='[[2cn6]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2cn6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CN6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2CN6 FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1fha|1fha]], [[2cei|2cei]], [[2chi|2chi]], [[2cih|2cih]], [[2clu|2clu]], [[2cn7|2cn7]], [[2fha|2fha]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ferroxidase Ferroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.16.3.1 1.16.3.1] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2cn6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2cn6 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2cn6 RCSB], [http://www.ebi.ac.uk/pdbsum/2cn6 PDBsum]</span></td></tr>
<table>
== 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/cn/2cn6_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Ferritins are a family of proteins distributed widely in nature. In bacterial, plant, and animal cells, ferritin appears to serve as a soluble, bioavailable, and non-toxic form of iron provider. Ferritins from animal sources are heteropolymers composed of two types of subunit, H and L, which differ mainly by the presence (H) or absence (L) of active ferroxidase centres. We report the crystallographic structures of four human H apoferritin variants at a resolution of up to 1.5 Angstrom. Crystal derivatives using Zn(II) as redox-stable alternative for Fe(II), allows us to characterize the different metal-binding sites. The ferroxidase centre, which is composed of sites A and B, binds metal with a preference for the A site. In addition, distinct Zn(II)-binding sites were found in the 3-fold axes, 4-fold axes and on the cavity surface near the ferroxidase centre. To study the importance of the distance of the two metal atoms in the ferroxidase centre, single and double replacement of glutamate 27 (site A) and glutamate 107 (site B), the two axial ligands, by aspartate residues have been carried out. The consequences for metal binding and the correlation with Fe(II) oxidation rates are discussed.


{{STRUCTURE_2cn6|  PDB=2cn6  |  SCENE=  }}
High-resolution X-ray structures of human apoferritin H-chain mutants correlated with their activity and metal-binding sites.,Toussaint L, Bertrand L, Hue L, Crichton RR, Declercq JP J Mol Biol. 2007 Jan 12;365(2):440-52. Epub 2006 Oct 7. PMID:17070541<ref>PMID:17070541</ref>


===RECOMBINANT HUMAN H FERRITIN, K86Q AND E107D MUTANT, SOAKED WITH ZN IONS===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_17070541}}
 
==About this Structure==
[[2cn6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CN6 OCA].


==See Also==
==See Also==
*[[Ferritin|Ferritin]]
*[[Ferritin|Ferritin]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:017070541</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Ferroxidase]]
[[Category: Ferroxidase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]

Revision as of 08:58, 29 September 2014

RECOMBINANT HUMAN H FERRITIN, K86Q AND E107D MUTANT, SOAKED WITH ZN IONSRECOMBINANT HUMAN H FERRITIN, K86Q AND E107D MUTANT, SOAKED WITH ZN IONS

Structural highlights

2cn6 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, ,
Related:1fha, 2cei, 2chi, 2cih, 2clu, 2cn7, 2fha
Activity:Ferroxidase, with EC number 1.16.3.1
Resources:FirstGlance, OCA, RCSB, PDBsum

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

Ferritins are a family of proteins distributed widely in nature. In bacterial, plant, and animal cells, ferritin appears to serve as a soluble, bioavailable, and non-toxic form of iron provider. Ferritins from animal sources are heteropolymers composed of two types of subunit, H and L, which differ mainly by the presence (H) or absence (L) of active ferroxidase centres. We report the crystallographic structures of four human H apoferritin variants at a resolution of up to 1.5 Angstrom. Crystal derivatives using Zn(II) as redox-stable alternative for Fe(II), allows us to characterize the different metal-binding sites. The ferroxidase centre, which is composed of sites A and B, binds metal with a preference for the A site. In addition, distinct Zn(II)-binding sites were found in the 3-fold axes, 4-fold axes and on the cavity surface near the ferroxidase centre. To study the importance of the distance of the two metal atoms in the ferroxidase centre, single and double replacement of glutamate 27 (site A) and glutamate 107 (site B), the two axial ligands, by aspartate residues have been carried out. The consequences for metal binding and the correlation with Fe(II) oxidation rates are discussed.

High-resolution X-ray structures of human apoferritin H-chain mutants correlated with their activity and metal-binding sites.,Toussaint L, Bertrand L, Hue L, Crichton RR, Declercq JP J Mol Biol. 2007 Jan 12;365(2):440-52. Epub 2006 Oct 7. PMID:17070541[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. ↑ Toussaint L, Bertrand L, Hue L, Crichton RR, Declercq JP. High-resolution X-ray structures of human apoferritin H-chain mutants correlated with their activity and metal-binding sites. J Mol Biol. 2007 Jan 12;365(2):440-52. Epub 2006 Oct 7. PMID:17070541 doi:10.1016/j.jmb.2006.10.010

2cn6, resolution 2.20Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA
Retrieved from "https://proteopedia.openfox.io/wiki/index.php?title=2cn6&oldid=2003025"