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| | ==Crystal structure of mitoNEET== | | ==Crystal structure of mitoNEET== |
| - | <StructureSection load='3ree' size='340' side='right' caption='[[3ree]], [[Resolution|resolution]] 1.76Å' scene=''> | + | <StructureSection load='3ree' size='340' side='right'caption='[[3ree]], [[Resolution|resolution]] 1.76Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3ree]] 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=3REE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3REE FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3ree]] is a 1 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=3REE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3REE FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</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]] 1.76Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CISD1, C10orf70, ZCD1, MDS029 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FES:FE2/S2+(INORGANIC)+CLUSTER'>FES</scene></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=3ree FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ree OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ree RCSB], [http://www.ebi.ac.uk/pdbsum/3ree PDBsum]</span></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=3ree FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ree OCA], [https://pdbe.org/3ree PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ree RCSB], [https://www.ebi.ac.uk/pdbsum/3ree PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ree ProSAT]</span></td></tr> |
| | </table> | | </table> |
| - | <div style="background-color:#fffaf0;">
| + | == Function == |
| - | == Publication Abstract from PubMed == | + | [https://www.uniprot.org/uniprot/CISD1_HUMAN CISD1_HUMAN] Plays a key role in regulating maximal capacity for electron transport and oxidative phosphorylation (By similarity). May be involved in Fe-S cluster shuttling and/or in redox reactions.<ref>PMID:17584744</ref> <ref>PMID:17766440</ref> |
| - | Binding of the thiazolidinedione antidiabetic drug pioglitazone led to the discovery of a novel outer mitochondrial membrane protein of unknown function called mitoNEET. The protein is homodimeric and contains a uniquely ligated two iron-two sulfur cluster in each of its two cytosolic domains. Electrospray ionization mass spectrometry was employed to characterize solutions of the soluble cytosolic domain (amino acids 32-108) of the protein. Ions characteristic of dimers containing the cofactors were readily detected under native conditions. mitoNEET responded to exposure to solutions at low pH by dissociation to give monomers that retained the cofactor, followed by dissociation of the cofactor in a concerted fashion. mitoNEET formed complexes with resveratrol-3-sulfate, one of the primary metabolites of the natural product resveratrol. Resveratrol itself showed no tendency to interact with mitoNEET. The formation of complexes was evident in both electrospray ionization mass spectrometry and isothermal titration calorimetry measurements. Up to eight molecules of the compound associated with the dimeric form of the protein in a sequential fashion. Dissociation constants determined by micorcalorimetry were in the range 5-16 muM for the various binding sites. The only other known naturally ocurring binding partner for mitoNEET at present is NADPH. It is very interesting that the iron-sulfur cluster containing protein interacts with two potentially redox active substances at the surface of mitochondria. These findings provide a new direction for research into two poorly understood, yet biomedically relevant species.
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| - | Complexes of the Outer Mitochondrial Membrane Protein mitoNEET with Resveratrol-3-sulfate.,Arif W, Xu S, Isailovic D, Geldenhuys WJ, Carroll RT, Funk MO Biochemistry. 2011 May 17. PMID:21591687<ref>PMID:21591687</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div> | + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Homo sapiens]] | | [[Category: Homo sapiens]] |
| - | [[Category: Arif, W]] | + | [[Category: Large Structures]] |
| - | [[Category: Funk, M O]] | + | [[Category: Arif W]] |
| - | [[Category: Mueser, T C]] | + | [[Category: Funk MO]] |
| - | [[Category: Xu, S]] | + | [[Category: Mueser TC]] |
| - | [[Category: Fe]] | + | [[Category: Xu S]] |
| - | [[Category: Fes cluster]]
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| - | [[Category: Metal binding protein]]
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| - | [[Category: Mitoneet]]
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| Structural highlights
Function
CISD1_HUMAN Plays a key role in regulating maximal capacity for electron transport and oxidative phosphorylation (By similarity). May be involved in Fe-S cluster shuttling and/or in redox reactions.[1] [2]
References
- ↑ Wiley SE, Paddock ML, Abresch EC, Gross L, van der Geer P, Nechushtai R, Murphy AN, Jennings PA, Dixon JE. The outer mitochondrial membrane protein mitoNEET contains a novel redox-active 2Fe-2S cluster. J Biol Chem. 2007 Aug 17;282(33):23745-9. Epub 2007 Jun 21. PMID:17584744 doi:C700107200
- ↑ Paddock ML, Wiley SE, Axelrod HL, Cohen AE, Roy M, Abresch EC, Capraro D, Murphy AN, Nechushtai R, Dixon JE, Jennings PA. MitoNEET is a uniquely folded 2Fe 2S outer mitochondrial membrane protein stabilized by pioglitazone. Proc Natl Acad Sci U S A. 2007 Sep 4;104(36):14342-7. Epub 2007 Aug 31. PMID:17766440
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