1n4m: Difference between revisions
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==Structure of Rb tumor suppressor bound to the transactivation domain of E2F-2== | ==Structure of Rb tumor suppressor bound to the transactivation domain of E2F-2== | ||
<StructureSection load='1n4m' size='340' side='right' caption='[[1n4m]], [[Resolution|resolution]] 2.20Å' scene=''> | <StructureSection load='1n4m' size='340' side='right' caption='[[1n4m]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1n4m]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N4M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1N4M FirstGlance]. <br> | <table><tr><td colspan='2'>[[1n4m]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N4M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1N4M FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1n4m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n4m OCA], [http://pdbe.org/1n4m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1n4m RCSB], [http://www.ebi.ac.uk/pdbsum/1n4m PDBsum]</span></td></tr> | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1n4m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n4m OCA], [http://pdbe.org/1n4m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1n4m RCSB], [http://www.ebi.ac.uk/pdbsum/1n4m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1n4m ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n4/1n4m_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n4/1n4m_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1n4m" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1n4m" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 10:12, 7 February 2018
Structure of Rb tumor suppressor bound to the transactivation domain of E2F-2Structure of Rb tumor suppressor bound to the transactivation domain of E2F-2
Structural highlights
Function[E2F2_HUMAN] Transcription activator that binds DNA cooperatively with DP proteins through the E2 recognition site, 5'-TTTC[CG]CGC-3' found in the promoter region of a number of genes whose products are involved in cell cycle regulation or in DNA replication. The DRTF1/E2F complex functions in the control of cell-cycle progression from g1 to s phase. E2F2 binds specifically to RB1 in a cell-cycle dependent manner. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedRepression of E2F transcription activity by the retinoblastoma (Rb) tumor suppressor through its interaction with the transactivation domain of the E2F transcription factor is one of the central features of G1/S arrest in the mammalian cell cycle. Deregulation of the Rb-E2F interaction results in hyperproliferation, lack of differentiation, and apoptosis, and can lead to cancer. The 2.2-A crystal structure of the Rb pocket complexed with an 18-residue transactivation-domain peptide of E2F-2 reveals that the boomerang-shaped peptide binds to the highly conserved interface between the A-box and the B-box of the Rb pocket in a bipartite manner. The N-terminal segment of the E2F-2 peptide in an extended beta-strand-like structure interacts with helices from the conserved groove at the A-B interface, whereas the C-terminal segment, which contains one 3(10) helix, binds to a groove mainly formed by A-box helices. The flexibility in the middle of the E2F-2 peptide is essential for the tight association of E2F to the Rb pocket. The binding of Rb to the E2F-2 peptide conceals several conserved residues that are crucial for transcription activation of E2F. We provide the structural basis for the Rb-mediated repression of E2F transcription activity without the requirement of histone-modifying enzymes. Structural basis for the recognition of the E2F transactivation domain by the retinoblastoma tumor suppressor.,Lee C, Chang JH, Lee HS, Cho Y Genes Dev. 2002 Dec 15;16(24):3199-212. PMID:12502741[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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