View source for 4bya


==Calmodulin, C-terminal domain, M144H mutant==
<StructureSection load='4bya' size='340' side='right'caption='[[4bya]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4bya]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4BYA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4BYA FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></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=4bya FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4bya OCA], [https://pdbe.org/4bya PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4bya RCSB], [https://www.ebi.ac.uk/pdbsum/4bya PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4bya ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CALM_CHICK CALM_CHICK] Calmodulin mediates the control of a large number of enzymes, ion channels and other proteins by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases.
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== Publication Abstract from PubMed ==
Design of a new catalytic function in proteins, apart from its inherent practical value, is important for fundamental understanding of enzymatic activity. Using a computationally inexpensive, minimalistic approach that focuses on introducing a single highly reactive residue into proteins to achieve catalysis we converted a 74-residue-long C-terminal domain of calmodulin into an efficient esterase. The catalytic efficiency of the resulting stereoselective, allosterically regulated catalyst, nicknamed AlleyCatE, is higher than that of any previously reported de novo designed esterases. The simplicity of our design protocol should complement and expand the capabilities of current state-of-art approaches to protein design. These results show that even a small nonenzymatic protein can efficiently attain catalytic activities in various reactions (Kemp elimination, ester hydrolysis, retroaldol reaction) as a result of a single mutation. In other words, proteins can be just one mutation away from becoming entry points for subsequent evolution.

New Tricks for Old Proteins: Single Mutations in a Nonenzymatic Protein Give Rise to Various Enzymatic Activities.,Moroz YS, Dunston TT, Makhlynets OV, Moroz OV, Wu Y, Yoon JH, Olsen AB, McLaughlin JM, Mack KL, Gosavi PM, van Nuland NA, Korendovych IV J Am Chem Soc. 2015 Nov 20. PMID:26555770<ref>PMID:26555770</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 4bya" style="background-color:#fffaf0;"></div>

==See Also==
*[[Calmodulin 3D structures|Calmodulin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Gallus gallus]]
[[Category: Large Structures]]
[[Category: Korendovych IV]]
[[Category: Moroz YS]]
[[Category: Wu Y]]
[[Category: Van Nuland NAJ]]