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- | {{Seed}} | |
- | [[Image:2gcj.png|left|200px]] | |
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- | <!--
| + | ==Crystal Structure of the Pob3 middle domain== |
- | The line below this paragraph, containing "STRUCTURE_2gcj", creates the "Structure Box" on the page.
| + | <StructureSection load='2gcj' size='340' side='right'caption='[[2gcj]], [[Resolution|resolution]] 2.55Å' scene=''> |
- | You may change the PDB parameter (which sets the PDB file loaded into the applet)
| + | == Structural highlights == |
- | or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
| + | <table><tr><td colspan='2'>[[2gcj]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GCJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2GCJ FirstGlance]. <br> |
- | or leave the SCENE parameter empty for the default display.
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.55Å</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=2gcj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gcj OCA], [https://pdbe.org/2gcj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2gcj RCSB], [https://www.ebi.ac.uk/pdbsum/2gcj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2gcj ProSAT]</span></td></tr> |
- | {{STRUCTURE_2gcj| PDB=2gcj | SCENE= }}
| + | </table> |
- | | + | == Function == |
- | ===Crystal Structure of the Pob3 middle domain===
| + | [https://www.uniprot.org/uniprot/POB3_YEAST POB3_YEAST] Component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication and DNA repair. During transcription elongation the FACT complex acts as a histone chaperone that both destabilizes and restores nucleosomal structure. It facilitates the passage of RNA polymerase II and transcription by promoting the dissociation of one histone H2A-H2B dimer from the nucleosome, then subsequently promotes the reestablishment of the nucleosome following the passage of RNA polymerase II. Transcription elongation is promoted by the repression of transcription initiation from cryptic sites. Also acts in establishing transcription initiation complexes and promotes SPT15/TBP-binding to a TATA box. Together with replication factor-A protein (RPA), FACT may play a role in nucleosome deposition during DNA replication.<ref>PMID:10413469</ref> <ref>PMID:10924459</ref> <ref>PMID:11432837</ref> <ref>PMID:12524332</ref> <ref>PMID:14585989</ref> <ref>PMID:12934008</ref> <ref>PMID:15082784</ref> <ref>PMID:15987999</ref> <ref>PMID:16678108</ref> |
- | | + | == Evolutionary Conservation == |
- | | + | [[Image:Consurf_key_small.gif|200px|right]] |
- | <!-- | + | Check<jmol> |
- | The line below this paragraph, {{ABSTRACT_PUBMED_16678108}}, adds the Publication Abstract to the page
| + | <jmolCheckbox> |
- | (as it appears on PubMed at http://www.pubmed.gov), where 16678108 is the PubMed ID number.
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gc/2gcj_consurf.spt"</scriptWhenChecked> |
- | -->
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> |
- | {{ABSTRACT_PUBMED_16678108}}
| + | <text>to colour the structure by Evolutionary Conservation</text> |
- | | + | </jmolCheckbox> |
- | ==About this Structure== | + | </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=2gcj ConSurf]. |
- | 2GCJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GCJ OCA].
| + | <div style="clear:both"></div> |
- | | + | == References == |
- | ==Reference== | + | <references/> |
- | The structure of the yFACT Pob3-M domain, its interaction with the DNA replication factor RPA, and a potential role in nucleosome deposition., VanDemark AP, Blanksma M, Ferris E, Heroux A, Hill CP, Formosa T, Mol Cell. 2006 May 5;22(3):363-74. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16678108 16678108] | + | __TOC__ |
| + | </StructureSection> |
| + | [[Category: Large Structures]] |
| [[Category: Saccharomyces cerevisiae]] | | [[Category: Saccharomyces cerevisiae]] |
- | [[Category: Single protein]]
| + | [[Category: VanDemark AP]] |
- | [[Category: VanDemark, A P.]] | + | |
- | [[Category: Chromatin]]
| + | |
- | [[Category: Double ph domain]]
| + | |
- | [[Category: Fact]]
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- | | + | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 14:41:09 2008''
| + | |
| Structural highlights
Function
POB3_YEAST Component of the FACT complex, a general chromatin factor that acts to reorganize nucleosomes. The FACT complex is involved in multiple processes that require DNA as a template such as mRNA elongation, DNA replication and DNA repair. During transcription elongation the FACT complex acts as a histone chaperone that both destabilizes and restores nucleosomal structure. It facilitates the passage of RNA polymerase II and transcription by promoting the dissociation of one histone H2A-H2B dimer from the nucleosome, then subsequently promotes the reestablishment of the nucleosome following the passage of RNA polymerase II. Transcription elongation is promoted by the repression of transcription initiation from cryptic sites. Also acts in establishing transcription initiation complexes and promotes SPT15/TBP-binding to a TATA box. Together with replication factor-A protein (RPA), FACT may play a role in nucleosome deposition during DNA replication.[1] [2] [3] [4] [5] [6] [7] [8] [9]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
- ↑ Wittmeyer J, Joss L, Formosa T. Spt16 and Pob3 of Saccharomyces cerevisiae form an essential, abundant heterodimer that is nuclear, chromatin-associated, and copurifies with DNA polymerase alpha. Biochemistry. 1999 Jul 13;38(28):8961-71. PMID:10413469 doi:http://dx.doi.org/10.1021/bi982851d
- ↑ Schlesinger MB, Formosa T. POB3 is required for both transcription and replication in the yeast Saccharomyces cerevisiae. Genetics. 2000 Aug;155(4):1593-606. PMID:10924459
- ↑ Formosa T, Eriksson P, Wittmeyer J, Ginn J, Yu Y, Stillman DJ. Spt16-Pob3 and the HMG protein Nhp6 combine to form the nucleosome-binding factor SPN. EMBO J. 2001 Jul 2;20(13):3506-17. PMID:11432837 doi:http://dx.doi.org/10.1093/emboj/20.13.3506
- ↑ Formosa T, Ruone S, Adams MD, Olsen AE, Eriksson P, Yu Y, Rhoades AR, Kaufman PD, Stillman DJ. Defects in SPT16 or POB3 (yFACT) in Saccharomyces cerevisiae cause dependence on the Hir/Hpc pathway: polymerase passage may degrade chromatin structure. Genetics. 2002 Dec;162(4):1557-71. PMID:12524332
- ↑ Mason PB, Struhl K. The FACT complex travels with elongating RNA polymerase II and is important for the fidelity of transcriptional initiation in vivo. Mol Cell Biol. 2003 Nov;23(22):8323-33. PMID:14585989
- ↑ Kaplan CD, Laprade L, Winston F. Transcription elongation factors repress transcription initiation from cryptic sites. Science. 2003 Aug 22;301(5636):1096-9. PMID:12934008 doi:http://dx.doi.org/10.1126/science.1087374
- ↑ Rhoades AR, Ruone S, Formosa T. Structural features of nucleosomes reorganized by yeast FACT and its HMG box component, Nhp6. Mol Cell Biol. 2004 May;24(9):3907-17. PMID:15082784
- ↑ Biswas D, Yu Y, Prall M, Formosa T, Stillman DJ. The yeast FACT complex has a role in transcriptional initiation. Mol Cell Biol. 2005 Jul;25(14):5812-22. PMID:15987999 doi:http://dx.doi.org/25/14/5812
- ↑ VanDemark AP, Blanksma M, Ferris E, Heroux A, Hill CP, Formosa T. The structure of the yFACT Pob3-M domain, its interaction with the DNA replication factor RPA, and a potential role in nucleosome deposition. Mol Cell. 2006 May 5;22(3):363-74. PMID:16678108 doi:10.1016/j.molcel.2006.03.025
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