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1ec6

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[[Image:1ec6.gif|left|200px]]
 
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==CRYSTAL STRUCTURE OF NOVA-2 KH3 K-HOMOLOGY RNA-BINDING DOMAIN BOUND TO 20-MER RNA HAIRPIN==
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The line below this paragraph, containing "STRUCTURE_1ec6", creates the "Structure Box" on the page.
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<StructureSection load='1ec6' size='340' side='right'caption='[[1ec6]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1ec6]] is a 4 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=1EC6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1EC6 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ec6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ec6 OCA], [https://pdbe.org/1ec6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ec6 RCSB], [https://www.ebi.ac.uk/pdbsum/1ec6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ec6 ProSAT]</span></td></tr>
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{{STRUCTURE_1ec6| PDB=1ec6 | SCENE= }}
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</table>
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== Function ==
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'''CRYSTAL STRUCTURE OF NOVA-2 KH3 K-HOMOLOGY RNA-BINDING DOMAIN BOUND TO 20-MER RNA HAIRPIN'''
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[https://www.uniprot.org/uniprot/NOVA2_HUMAN NOVA2_HUMAN] May regulate RNA splicing or metabolism in a specific subset of developing neurons (By similarity). Binds single strand RNA.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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==Overview==
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Check<jmol>
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The structure of a Nova protein K homology (KH) domain recognizing single-stranded RNA has been determined at 2.4 A resolution. Mammalian Nova antigens (1 and 2) constitute an important family of regulators of RNA metabolism in neurons, first identified using sera from cancer patients with the autoimmune disorder paraneoplastic opsoclonus-myoclonus ataxia (POMA). The structure of the third KH domain (KH3) of Nova-2 bound to a stem loop RNA resembles a molecular vise, with 5'-Ura-Cyt-Ade-Cyt-3' pinioned between an invariant Gly-X-X-Gly motif and the variable loop. Tetranucleotide recognition is supported by an aliphatic alpha helix/beta sheet RNA-binding platform, which mimics 5'-Ura-Gua-3' by making Watson-Crick-like hydrogen bonds with 5'-Cyt-Ade-3'. Sequence conservation suggests that fragile X mental retardation results from perturbation of RNA binding by the FMR1 protein.
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ec/1ec6_consurf.spt"</scriptWhenChecked>
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==About this Structure==
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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1EC6 is a [[Single protein]] structure of 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=1EC6 OCA].
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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==Reference==
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</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/main_output.php?pdb_ID=1ec6 ConSurf].
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Sequence-specific RNA binding by a Nova KH domain: implications for paraneoplastic disease and the fragile X syndrome., Lewis HA, Musunuru K, Jensen KB, Edo C, Chen H, Darnell RB, Burley SK, Cell. 2000 Feb 4;100(3):323-32. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10676814 10676814]
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Chen, H.]]
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[[Category: Chen H]]
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[[Category: Edo, C.]]
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[[Category: Edo C]]
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[[Category: Jensen, K B.]]
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[[Category: Jensen KB]]
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[[Category: Lewis, H A.]]
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[[Category: Lewis HA]]
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[[Category: Musunuru, K.]]
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[[Category: Musunuru K]]
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[[Category: Alpha-beta fold]]
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[[Category: Kh domain]]
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[[Category: Protein/rna structure]]
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[[Category: Rna-binding motif]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:55:29 2008''
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Current revision

CRYSTAL STRUCTURE OF NOVA-2 KH3 K-HOMOLOGY RNA-BINDING DOMAIN BOUND TO 20-MER RNA HAIRPIN

PDB ID 1ec6

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