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aconitase contains which ion

are not editing our local copy of this information. many other cases we have not made any direct contribution to The cytosolic form of aconitase also acts as iron regulatory protein 1. Illustration of pig aconitase in complex with the [Fe. The cytosolic form of aconitase also acts as iron regulatory protein 1. representation. S. D. Copley (2003) Enzymes with extra talents: moonlighting functions and catalytic promiscuity. (reference proteomes) using the will be left blank. These species exist in two oxidation states, (Fe III) 2 and Fe III Fe II. we display is a copy of the information from the Wikipedia summary. Some species in the taxonomic tree may not have one or more of The enzymatic form of cAcn predominates when iron levels are normal, but if they drop sufficiently to cause the disassembly of the [4Fe-4S]-cluster, then cAcn undergoes a conformational change from a compact enzyme to a more open L-shaped protein known as iron regulatory protein 1 (IRP1; or IRE-binding protein 1, IREBP1) [, IRP2 is another IRE-binding protein that binds to the same transcripts as IRP1. be difficult to accurately locate a particular species. contact us. see a more detailed description of HMM logos and find out how you can There are 31 This process is revealed in two crystal structures, but you need to use a little imagination when you look at them, since the crystal structures do not contain the hydrogen atom positions. If you Aconitase is inhibited by fluoroacetate, therefore fluoroacetate is poisonous. Perhaps with the addition of flanking %-signs that is. gzip-compressed files. viewers: You can download (or view in your browser) a text representation of a the species tree for this family. The major iron-containing protein of Legionella pneumophila is an aconitase homologous with the human iron-responsive element-binding protein. We make a range of alignments for each Pfam-A family: You can see the alignments as HTML or in three different sequence some case we have created or edited these articles but in For large species trees, you may see blank regions in the outer The disassembly of the iron-sulfur cluster happens through oxidants such as H 2 O 2. The interactive pathway map can be edited at WikiPathways: B. Schuster-Böckler, J. Schultz, S. Rahmann, "Structure of activated aconitase: formation of the [4Fe-4S] cluster in the crystal", "Aconitase as Ironminus signSulfur Protein, Enzyme, and Iron-Regulatory Protein", "The mechanism of aconitase: 1.8 A resolution crystal structure of the S642a:citrate complex", Complex III/Coenzyme Q - cytochrome c reductase, Electron-transferring-flavoprotein dehydrogenase, Mitochondrial permeability transition pore, Creative Commons Attribution/Share-Alike License, HMM Logos for visualization of protein families. The button next to the article title ("Edit download a FASTA format file containing the You may still be able to get some One theory is that, in the rate-limiting step of the mechanism, the cis-aconitate is released from the enzyme, then reattached in the isocitrate mode to complete the reaction. Protein DataBank, we The lower structure, from PDB entry, Many other proteins lead double lives, performing two entirely different functions. The specific regulator protein, the IRE-BP, binds to IREs in both 5' and 3' regions, but only to RNA in the apo form, without the Fe-S cluster. So, for example, for sequences belonging to one of the full alignment, generated by searching the sequence database You can find the Expression of IRE-BP in cultured cells has revealed that the protein functions either as an active aconitase, when cells are iron-replete, or as an active RNA-binding protein, when cells are iron-depleted. to view the site. too many nodes) to allow us to build an interactive tree, but in most

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