3le4
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 3le4 is ON HOLD Authors: Senturia, R., Cascio, D., Sawaya, M., Guo, F. Description: Crystal structure of the DGCR8 dimerization domain (CASP Target...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Crystal structure of the DGCR8 dimerization domain== | |
| - | + | <StructureSection load='3le4' size='340' side='right'caption='[[3le4]], [[Resolution|resolution]] 1.70Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[3le4]] 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=3LE4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3LE4 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]] 1.701Å</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=3le4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3le4 OCA], [https://pdbe.org/3le4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3le4 RCSB], [https://www.ebi.ac.uk/pdbsum/3le4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3le4 ProSAT]</span></td></tr> | |
| - | + | </table> | |
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/DGCR8_HUMAN DGCR8_HUMAN] Component of the microprocessor complex that acts as a RNA- and heme-binding protein that is involved in the initial step of microRNA (miRNA) biogenesis. Component of the microprocessor complex that is required to process primary miRNA transcripts (pri-miRNAs) to release precursor miRNA (pre-miRNA) in the nucleus. Within the microprocessor complex, DGCR8 function as a molecular anchor necessary for the recognition of pri-miRNA at dsRNA-ssRNA junction and directs DROSHA to cleave 11 bp away form the junction to release hairpin-shaped pre-miRNAs that are subsequently cut by the cytoplasmic DICER to generate mature miRNAs. The heme-bound DGCR8 dimer binds pri-miRNAs as a cooperative trimer (of dimers) and is active in triggering pri-miRNA cleavage, whereas the heme-free DGCR8 monomer binds pri-miRNAs as a dimer and is much less active. Both double-stranded and single-stranded regions of a pri-miRNA are required for its binding. Involved in the silencing of embryonic stem cells self-renewal.<ref>PMID:15589161</ref> <ref>PMID:15574589</ref> <ref>PMID:15531877</ref> <ref>PMID:16751099</ref> <ref>PMID:16906129</ref> <ref>PMID:16963499</ref> <ref>PMID:17159994</ref> | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/le/3le4_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </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=3le4 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Cascio D]] | ||
| + | [[Category: Guo F]] | ||
| + | [[Category: Sawaya M]] | ||
| + | [[Category: Senturia R]] | ||
Current revision
Crystal structure of the DGCR8 dimerization domain
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