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| [[Image:2ipy.gif|left|200px]]<br /> | | #REDIRECT [[3snp]] This PDB entry is obsolete and replaced by 3snp |
| <applet load="2ipy" size="450" color="white" frame="true" align="right" spinBox="true"
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| caption="2ipy, resolution 2.80Å" />
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| '''crystal structure of iron regulatory protein 1 in complex with ferritin H IRE-RNA'''<br />
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| ==Overview==
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| Iron regulatory protein 1 (IRP1) binds iron-responsive elements (IREs) in, messenger RNAs (mRNAs), to repress translation or degradation, or binds an, iron-sulfur cluster, to become a cytosolic aconitase enzyme. The 2.8, angstrom resolution crystal structure of the IRP1:ferritin H IRE complex, shows an open protein conformation compared with that of cytosolic, aconitase. The extended, L-shaped IRP1 molecule embraces the IRE stem-loop, through interactions at two sites separated by approximately 30 angstroms, each involving about a dozen protein:RNA bonds. Extensive conformational, changes related to binding the IRE or an iron-sulfur cluster explain the, alternate functions of IRP1 as an mRNA regulator or enzyme.
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| ==About this Structure==
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| 2IPY is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. The following page contains interesting information on the relation of 2IPY with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb89_1.html Aconitase and Iron Regulatory Protein 1]]. Active as [http://en.wikipedia.org/wiki/Aconitate_hydratase Aconitate hydratase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.3 4.2.1.3] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2IPY OCA].
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| ==Reference==
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| Structure of dual function iron regulatory protein 1 complexed with ferritin IRE-RNA., Walden WE, Selezneva AI, Dupuy J, Volbeda A, Fontecilla-Camps JC, Theil EC, Volz K, Science. 2006 Dec 22;314(5807):1903-8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17185597 17185597]
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| [[Category: Aconitase and Iron Regulatory Protein 1]]
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| [[Category: Aconitate hydratase]]
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| [[Category: Oryctolagus cuniculus]]
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| [[Category: Single protein]]
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| [[Category: Dupuy, J.]]
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| [[Category: Fontecilla-Camps, J.C.]]
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| [[Category: Selezneva, A.I.]]
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| [[Category: Theil, E.C.]]
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| [[Category: Volbeda, A.]]
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| [[Category: Volz, K.]]
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| [[Category: Walden, W.E.]]
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| [[Category: protein-rna complex]]
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| ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 18 09:08:55 2007''
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This PDB entry is obsolete and replaced by 3snp
