1n52

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{{Seed}}
 
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[[Image:1n52.png|left|200px]]
 
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==Cap Binding Complex==
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The line below this paragraph, containing "STRUCTURE_1n52", creates the "Structure Box" on the page.
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<StructureSection load='1n52' size='340' side='right'caption='[[1n52]], [[Resolution|resolution]] 2.11&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'>[[1n52]] is a 2 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=1N52 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N52 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]] 2.11&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=GTG:7-METHYL-GUANOSINE-5-TRIPHOSPHATE-5-GUANOSINE'>GTG</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene></td></tr>
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{{STRUCTURE_1n52| PDB=1n52 | SCENE= }}
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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=1n52 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n52 OCA], [https://pdbe.org/1n52 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n52 RCSB], [https://www.ebi.ac.uk/pdbsum/1n52 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n52 ProSAT]</span></td></tr>
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</table>
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===Cap Binding Complex===
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== Function ==
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[https://www.uniprot.org/uniprot/NCBP1_HUMAN NCBP1_HUMAN] Component of the cap-binding complex (CBC), which binds cotranscriptionally to the 5'-cap of pre-mRNAs and is involved in various processes such as pre-mRNA splicing, translation regulation, nonsense-mediated mRNA decay, RNA-mediated gene silencing (RNAi) by microRNAs (miRNAs) and mRNA export. The CBC complex is involved in mRNA export from the nucleus via its interaction with ALYREF/THOC4/ALY, leading to the recruitment of the mRNA export machinery to the 5'-end of mRNA and to mRNA export in a 5' to 3' direction through the nuclear pore. The CBC complex is also involved in mediating U snRNA and intronless mRNAs export from the nucleus. The CBC complex is essential for a pioneer round of mRNA translation, before steady state translation when the CBC complex is replaced by cytoplasmic cap-binding protein eIF4E. The pioneer round of mRNA translation mediated by the CBC complex plays a central role in nonsense-mediated mRNA decay (NMD), NMD only taking place in mRNAs bound to the CBC complex, but not on eIF4E-bound mRNAs. The CBC complex enhances NMD in mRNAs containing at least one exon-junction complex (EJC) via its interaction with UPF1, promoting the interaction between UPF1 and UPF2. The CBC complex is also involved in 'failsafe' NMD, which is independent of the EJC complex, while it does not participate in Staufen-mediated mRNA decay (SMD). During cell proliferation, the CBC complex is also involved in microRNAs (miRNAs) biogenesis via its interaction with SRRT/ARS2 and is required for miRNA-mediated RNA interference. The CBC complex also acts as a negative regulator of PARN, thereby acting as an inhibitor of mRNA deadenylation. In the CBC complex, NCBP1/CBP80 does not bind directly capped RNAs (m7GpppG-capped RNA) but is required to stabilize the movement of the N-terminal loop of NCBP2/CBP20 and lock the CBC into a high affinity cap-binding state with the cap structure.<ref>PMID:8069914</ref> <ref>PMID:7651522</ref> <ref>PMID:11551508</ref> <ref>PMID:15059963</ref> <ref>PMID:15361857</ref> <ref>PMID:16186820</ref> <ref>PMID:17190602</ref> <ref>PMID:16317009</ref> <ref>PMID:17873884</ref> <ref>PMID:18369367</ref> <ref>PMID:19632182</ref> <ref>PMID:19648179</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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The line below this paragraph, {{ABSTRACT_PUBMED_12434151}}, adds the Publication Abstract to the page
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Check<jmol>
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(as it appears on PubMed at http://www.pubmed.gov), where 12434151 is the PubMed ID number.
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n5/1n52_consurf.spt"</scriptWhenChecked>
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{{ABSTRACT_PUBMED_12434151}}
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==About this Structure==
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</jmolCheckbox>
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1N52 is a 2 chains structure of sequences 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=1N52 OCA].
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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=1n52 ConSurf].
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<div style="clear:both"></div>
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==Reference==
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== References ==
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<ref group="xtra">PMID:12434151</ref><references group="xtra"/>
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Calero, G.]]
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[[Category: Large Structures]]
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[[Category: Cerione, R.]]
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[[Category: Calero G]]
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[[Category: Clardy, J.]]
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[[Category: Cerione R]]
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[[Category: Ly, T.]]
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[[Category: Clardy J]]
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[[Category: Rios-Steiner, J.]]
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[[Category: Ly T]]
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[[Category: Wilson, K.]]
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[[Category: Rios-Steiner J]]
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[[Category: Cap binding protein]]
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[[Category: Wilson K]]
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[[Category: Cbp20]]
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[[Category: Cbp80]]
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[[Category: M7gpppg]]
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[[Category: Rnp domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 08:16:42 2009''
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Current revision

Cap Binding Complex

PDB ID 1n52

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