View source for 4yr1


==Crystal Structure of E. Coli Alkaline Phosphatase D101A/D153A in complex with inorganic phosphate==
<StructureSection load='4yr1' size='340' side='right'caption='[[4yr1]], [[Resolution|resolution]] 2.24&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4yr1]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YR1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4YR1 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.24&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=4yr1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yr1 OCA], [https://pdbe.org/4yr1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4yr1 RCSB], [https://www.ebi.ac.uk/pdbsum/4yr1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4yr1 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PPB_ECOLI PPB_ECOLI] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Enzymes enable life by accelerating reaction rates to biological timescales. Conventional studies have focused on identifying the residues that have a direct involvement in an enzymatic reaction, but these so-called 'catalytic residues' are embedded in extensive interaction networks. Although fundamental to our understanding of enzyme function, evolution, and engineering, the properties of these networks have yet to be quantitatively and systematically explored. We dissected an interaction network of five residues in the active site of E. Coli Alkaline Phosphatase. Analysis of the complex catalytic interdependence of specific residues identified three energetically independent but structurally interconnected functional units with distinct modes of cooperativity. From an evolutionary perspective, this network is orders of magnitude more probable to arise than a fully cooperative network. From a functional perspective, new catalytic insights emerge. Further, such comprehensive energetic characterization will be necessary to benchmark the algorithms required to rationally engineer highly efficient enzymes.

Extensive site-directed mutagenesis reveals interconnected functional units in the Alkaline Phosphatase active site.,Sunden F, Peck A, Salzman J, Ressl S, Herschlag D Elife. 2015 Apr 22;4. doi: 10.7554/eLife.06181. PMID:25902402<ref>PMID:25902402</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4yr1" style="background-color:#fffaf0;"></div>

==See Also==
*[[Alkaline phosphatase 3D structures|Alkaline phosphatase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Herschlag D]]
[[Category: Peck A]]