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3exj

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Revision as of 18:22, 9 February 2016

Crystal Structure of a p53 Core Tetramer Bound to DNA

Structural highlights

3exj is a 4 chain structure with sequence from Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	3exl
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Disease

[P53_MOUSE] Note=p53 is found in increased amounts in a wide variety of transformed cells. p53 is frequently mutated or inactivated in many types of cancer.

Function

[P53_MOUSE] Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type. Involved in cell cycle regulation as a trans-activator that acts to negatively regulate cell division by controlling a set of genes required for this process. One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression. In cooperation with mitochondrial PPIF is involved in activating oxidative stress-induced necrosis; te function is largely independent of transcription. Prevents CDK7 kinase activity when associated to CAK complex in response to DNA damage, thus stopping cell cycle progression (By similarity). Induces the transcription of long intergenic non-coding RNA p21 (lincRNA-p21) and lincRNA-Mkln1. LincRNA-p21 participates in TP53-dependent transcriptional repression leading to apoptosis, but seems to have to effect on cell-cycle regulation.^[1] ^[2] ^[3]

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 PubMed

The tumor suppressor p53 regulates downstream genes in response to many cellular stresses and is frequently mutated in human cancers. Here, we report the use of a crosslinking strategy to trap a tetrameric p53 DNA-binding domain (p53DBD) bound to DNA and the X-ray crystal structure of the protein/DNA complex. The structure reveals that two p53DBD dimers bind to B form DNA with no relative twist and that a p53 tetramer can bind to DNA without introducing significant DNA bending. The numerous dimer-dimer interactions involve several strictly conserved residues, thus suggesting a molecular basis for p53DBD-DNA binding cooperativity. Surface residue conservation of the p53DBD tetramer bound to DNA highlights possible regions of other p53 domain or p53 cofactor interactions.

Crystal structure of a p53 core tetramer bound to DNA.,Malecka KA, Ho WC, Marmorstein R Oncogene. 2009 Jan 22;28(3):325-33. Epub 2008 Nov 3. PMID:18978813^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Allton K, Jain AK, Herz HM, Tsai WW, Jung SY, Qin J, Bergmann A, Johnson RL, Barton MC. Trim24 targets endogenous p53 for degradation. Proc Natl Acad Sci U S A. 2009 Jul 14;106(28):11612-6. doi:, 10.1073/pnas.0813177106. Epub 2009 Jun 25. PMID:19556538 doi:10.1073/pnas.0813177106
↑ Huarte M, Guttman M, Feldser D, Garber M, Koziol MJ, Kenzelmann-Broz D, Khalil AM, Zuk O, Amit I, Rabani M, Attardi LD, Regev A, Lander ES, Jacks T, Rinn JL. A large intergenic noncoding RNA induced by p53 mediates global gene repression in the p53 response. Cell. 2010 Aug 6;142(3):409-19. doi: 10.1016/j.cell.2010.06.040. PMID:20673990 doi:10.1016/j.cell.2010.06.040
↑ Vaseva AV, Marchenko ND, Ji K, Tsirka SE, Holzmann S, Moll UM. p53 opens the mitochondrial permeability transition pore to trigger necrosis. Cell. 2012 Jun 22;149(7):1536-48. doi: 10.1016/j.cell.2012.05.014. PMID:22726440 doi:10.1016/j.cell.2012.05.014
↑ Malecka KA, Ho WC, Marmorstein R. Crystal structure of a p53 core tetramer bound to DNA. Oncogene. 2009 Jan 22;28(3):325-33. Epub 2008 Nov 3. PMID:18978813 doi:10.1038/onc.2008.400

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3exj"

@@ Line 2: / Line 2: @@
 <StructureSection load='3exj' size='340' side='right' caption='[[3exj]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3exj]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EXJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EXJ FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3exj]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EXJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EXJ FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FLC:CITRATE+ANION'>FLC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3exl|3exl]]</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=3exj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3exj OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3exj RCSB], [http://www.ebi.ac.uk/pdbsum/3exj PDBsum]</span></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=3exj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3exj OCA], [http://pdbe.org/3exj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3exj RCSB], [http://www.ebi.ac.uk/pdbsum/3exj PDBsum]</span></td></tr>
 </table>
 == Disease ==
@@ Line 19: / Line 19: @@
     <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/chain_selection.php?pdb_ID=2ata ConSurf].
+</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=3exj ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 29: / Line 29: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3exj" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 36: / Line 37: @@
 __TOC__
 </StructureSection>
-[[Category: Mus musculus]]
+[[Category: Lk3 transgenic mice]]
 [[Category: Malecka, K A]]
 [[Category: Activator]]

3exj

From Proteopedia

Revision as of 18:22, 9 February 2016

Crystal Structure of a p53 Core Tetramer Bound to DNA

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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