View source for 6ipc


==Non-native human ferritin 8-mer==
<StructureSection load='6ipc' size='340' side='right'caption='[[6ipc]], [[Resolution|resolution]] 4.44&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ipc]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6IPC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6IPC 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]] 4.443&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</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=6ipc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ipc OCA], [https://pdbe.org/6ipc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ipc RCSB], [https://www.ebi.ac.uk/pdbsum/6ipc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ipc ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FRIH_HUMAN FRIH_HUMAN] Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Has ferroxidase activity. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation. Also plays a role in delivery of iron to cells. Mediates iron uptake in capsule cells of the developing kidney (By similarity).
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Constructing different protein nanostructures with high-order discrete architectures by using one single building block remains a challenge. Here, we present a simple, effective disulfide-mediated approach to prepare a set of protein nanocages with different geometries from single building block. By genetically deleting an inherent intra-subunit disulfide bond, we can render the conversion of an 8-mer bowl-like protein architecture (NF-8) into a 24-mer ferritin-like nanocage in solution, while selective insertion of an inter-subunit disulfide bond into NF-8 triggers its conversion into a 16-mer lenticular nanocage. Deletion of the same intra-subunit disulfide bond and insertion of the inter-subunit disulfide bond results in the conversion of NF-8 into a 48-mer protein nanocage in solution. Thus, in the laboratory, simple mutation of one protein building block can generate three different protein nanocages in a manner that is highly reminiscent of natural pentamer building block originating from viral capsids that self-assemble into protein assemblies with different symmetries.

Disulfide-mediated conversion of 8-mer bowl-like protein architecture into three different nanocages.,Zang J, Chen H, Zhang X, Zhang C, Guo J, Du M, Zhao G Nat Commun. 2019 Feb 15;10(1):778. doi: 10.1038/s41467-019-08788-9. PMID:30770832<ref>PMID:30770832</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6ipc" style="background-color:#fffaf0;"></div>

==See Also==
*[[Ferritin 3D structures|Ferritin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Chen H]]
[[Category: Zang JC]]
[[Category: Zhao G]]