2ase: Difference between revisions

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-[[Image:2ase.png|left|200px]]
+==NMR structure of the F28L mutant of Cdc42Hs==
+<StructureSection load='2ase' size='340' side='right' caption='[[2ase]], [[NMR_Ensembles_of_Models | 15 NMR models]]' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[2ase]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ASE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ASE FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CDC42 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ase FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ase OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ase RCSB], [http://www.ebi.ac.uk/pdbsum/2ase PDBsum]</span></td></tr>
+<table>
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/as/2ase_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <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].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Cdc42Hs(F28L) is a single-point mutant of Cdc42Hs, a member of the Ras superfamily of GTP-binding proteins, that facilitates cellular transformation brought about by an increased rate of cycling between GTP and GDP [Lin, R., et al. (1997) Curr. Biol. 7, 794-797]. Dynamics studies of Cdc42Hs(F28L)-GDP have shown increased flexibility for several residues at the nucleotide-binding site [Adams, P. D., et al. (2004) Biochemistry 43, 9968-9977]. The solution structure of Cdc42Hs-GDP (wild type) has previously been determined by NMR spectroscopy [Feltham, J. L., et al. (1997) Biochemistry 36, 8755-8766]. Here, we describe the solution structure of Cdc42Hs(F28L)-GDP, which provides insight into the structural basis for the change in affinity for GDP. Heteronuclear NMR experiments were performed to assign resonances in the protein, and distance, hydrogen bonding, residual dipolar coupling, and dihedral angle constraints were used to calculate a set of low-energy structures using distance geometry and simulated annealing refinement protocols. The overall structure of Cdc42Hs(F28L)-GDP is very similar to that of wild-type Cdc42Hs, consisting of a centrally located six-stranded beta-sheet structure surrounding the C-terminal alpha-helix [Feltham, J. L., et al. (1997) Biochemistry 36, 8755-8766]. In addition, the same three regions in wild-type Cdc42Hs that show structural disorder (Switch I, Switch II, and the Insert region) are disordered in F28L as well. Although the structure of Cdc42Hs(F28L)-GDP is very similar to that of the wild type, interactions with the nucleotide and hydrogen bonding within the nucleotide binding site are altered, and the region surrounding L28 is substantially more disordered.
-{{STRUCTURE_2ase|  PDB=2ase  |  SCENE=  }}
+Solution structure of an oncogenic mutant of Cdc42Hs.,Adams PD, Oswald RE Biochemistry. 2006 Feb 28;45(8):2577-83. PMID:16489751<ref>PMID:16489751</ref>
-===NMR structure of the F28L mutant of Cdc42Hs===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_16489751}}
-==About this Structure==
-[[2ase]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ASE OCA].
 ==See Also==
 *[[GTP-binding protein|GTP-binding protein]]
+== References ==
-==Reference==
+<references/>
-<ref group="xtra">PMID:016489751</ref><references group="xtra"/>
+__TOC__
+</StructureSection>
 [[Category: Homo sapiens]]
 [[Category: Adams, P D.]]