2lcb

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:2lcb.png|left|200px]]
+
==Solution Structure of a Minor and Transiently Formed State of a T4 Lysozyme Mutant==
 +
<StructureSection load='2lcb' size='340' side='right' caption='[[2lcb]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[2lcb]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LCB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2LCB FirstGlance]. <br>
 +
</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3dmv|3dmv]], [[3dmx|3dmx]], [[2lc9|2lc9]]</td></tr>
 +
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">E ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10665 Enterobacteria phage T4])</td></tr>
 +
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></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=2lcb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2lcb OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2lcb RCSB], [http://www.ebi.ac.uk/pdbsum/2lcb PDBsum]</span></td></tr>
 +
<table>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Proteins are inherently plastic molecules, whose function often critically depends on excursions between different molecular conformations (conformers). However, a rigorous understanding of the relation between a protein's structure, dynamics and function remains elusive. This is because many of the conformers on its energy landscape are only transiently formed and marginally populated (less than a few per cent of the total number of molecules), so that they cannot be individually characterized by most biophysical tools. Here we study a lysozyme mutant from phage T4 that binds hydrophobic molecules and populates an excited state transiently (about 1 ms) to about 3% at 25 degrees C (ref. 5). We show that such binding occurs only via the ground state, and present the atomic-level model of the 'invisible', excited state obtained using a combined strategy of relaxation-dispersion NMR (ref. 6) and CS-Rosetta model building that rationalizes this observation. The model was tested using structure-based design calculations identifying point mutants predicted to stabilize the excited state relative to the ground state. In this way a pair of mutations were introduced, inverting the relative populations of the ground and excited states and altering function. Our results suggest a mechanism for the evolution of a protein's function by changing the delicate balance between the states on its energy landscape. More generally, they show that our approach can generate and validate models of excited protein states.
-
{{STRUCTURE_2lcb| PDB=2lcb | SCENE= }}
+
Solution structure of a minor and transiently formed state of a T4 lysozyme mutant.,Bouvignies G, Vallurupalli P, Hansen DF, Correia BE, Lange O, Bah A, Vernon RM, Dahlquist FW, Baker D, Kay LE Nature. 2011 Aug 21;477(7362):111-4. doi: 10.1038/nature10349. PMID:21857680<ref>PMID:21857680</ref>
-
===Solution Structure of a Minor and Transiently Formed State of a T4 Lysozyme Mutant===
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
{{ABSTRACT_PUBMED_21857680}}
+
-
 
+
-
==About this Structure==
+
-
[[2lcb]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2LCB OCA].
+
==See Also==
==See Also==
-
*[[Hen Egg-White (HEW) Lysozyme|Hen Egg-White (HEW) Lysozyme]]
+
*[[Lysozyme 3D structures|Lysozyme 3D structures]]
-
 
+
== References ==
-
==Reference==
+
<references/>
-
<ref group="xtra">PMID:021857680</ref><references group="xtra"/>
+
__TOC__
 +
</StructureSection>
[[Category: Enterobacteria phage t4]]
[[Category: Enterobacteria phage t4]]
[[Category: Lysozyme]]
[[Category: Lysozyme]]

Revision as of 05:55, 29 September 2014

Solution Structure of a Minor and Transiently Formed State of a T4 Lysozyme Mutant

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Views
Personal tools
Navigation
Toolbox