1xjv

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{{Seed}}
 
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[[Image:1xjv.png|left|200px]]
 
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==Crystal structure of human POT1 bound to telomeric single-stranded DNA (TTAGGGTTAG)==
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The line below this paragraph, containing "STRUCTURE_1xjv", creates the "Structure Box" on the page.
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<StructureSection load='1xjv' size='340' side='right'caption='[[1xjv]], [[Resolution|resolution]] 1.73&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'>[[1xjv]] 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=1XJV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XJV 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]] 1.73&#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=1xjv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xjv OCA], [https://pdbe.org/1xjv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xjv RCSB], [https://www.ebi.ac.uk/pdbsum/1xjv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xjv ProSAT]</span></td></tr>
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{{STRUCTURE_1xjv| PDB=1xjv | SCENE= }}
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</table>
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== Function ==
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===Crystal structure of human POT1 bound to telomeric single-stranded DNA (TTAGGGTTAG)===
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[https://www.uniprot.org/uniprot/POTE1_HUMAN POTE1_HUMAN] Component of the telomerase ribonucleoprotein (RNP) complex that is essential for the replication of chromosome termini. Is a component of the double-stranded telomeric DNA-binding TRF1 complex which is involved in the regulation of telomere length by cis-inhibition of telomerase. Also acts as a single-stranded telomeric DNA-binding protein and thus may act as a downstream effector of the TRF1 complex and may transduce information about telomere maintenance and/or length to the telomere terminus. Component of the shelterin complex (telosome) that is involved in the regulation of telomere length and protection. Shelterin associates with arrays of double-stranded TTAGGG repeats added by telomerase and protects chromosome ends; without its protective activity, telomeres are no longer hidden from the DNA damage surveillance and chromosome ends are inappropriately processed by DNA repair pathways. Binds to two or more telomeric single-stranded 5'-TTAGGG-3' repeats (G-strand) and with high specificity to a minimal telomeric single-stranded 5'-TAGGGTTAG-3' sequence. Binds telomeric single-stranded sequences internally or at proximity of a 3'-end. Its activity is TERT dependent but it does not increase TERT activity by itself. In contrast, the ACD-POT1 heterodimer enhances telomere elongation by increasing telomerase processivity.<ref>PMID:12781132</ref> <ref>PMID:12768206</ref> <ref>PMID:16166375</ref> <ref>PMID:17237768</ref> <ref>PMID:20231318</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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The line below this paragraph, {{ABSTRACT_PUBMED_15558049}}, adds the Publication Abstract to the page
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<jmolCheckbox>
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(as it appears on PubMed at http://www.pubmed.gov), where 15558049 is the PubMed ID number.
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xj/1xjv_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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{{ABSTRACT_PUBMED_15558049}}
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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==About this Structure==
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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=1xjv ConSurf].
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1XJV 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=1XJV OCA].
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<div style="clear:both"></div>
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:15558049</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Cech, T R.]]
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[[Category: Large Structures]]
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[[Category: Lei, M.]]
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[[Category: Cech TR]]
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[[Category: Podell, E R.]]
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[[Category: Lei M]]
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[[Category: Protein-dna complex]]
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[[Category: Podell ER]]
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[[Category: Single-stranded dna]]
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[[Category: Telomere]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 07:16:10 2009''
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Current revision

Crystal structure of human POT1 bound to telomeric single-stranded DNA (TTAGGGTTAG)

PDB ID 1xjv

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