4kjl: Difference between revisions

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{{STRUCTURE_4kjl| PDB=4kjl | SCENE= }}
==Room Temperature N23PPS148A DHFR==
===Room Temperature N23PPS148A DHFR===
<StructureSection load='4kjl' size='340' side='right' caption='[[4kjl]], [[Resolution|resolution]] 1.38&Aring;' scene=''>
{{ABSTRACT_PUBMED_23913260}}
== Structural highlights ==
<table><tr><td colspan='2'>[[4kjl]] is a 1 chain structure with sequence from [http://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=4KJL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4KJL FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FOL:FOLIC+ACID'>FOL</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4kjj|4kjj]], [[4kjk|4kjk]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">folA, UTI89_C0054 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 Escherichia coli K-12])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dihydrofolate_reductase Dihydrofolate reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.5.1.3 1.5.1.3] </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=4kjl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4kjl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4kjl RCSB], [http://www.ebi.ac.uk/pdbsum/4kjl PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Protein function often depends on the exchange between conformational substates. Allosteric ligand binding or distal mutations can stabilize specific active-site conformations and consequently alter protein function. Observing alternative conformations at low levels of electron density, in addition to comparison of independently determined X-ray crystal structures, can provide mechanistic insights into conformational dynamics. Here we report a new algorithm, CONTACT, that identifies contact networks of conformationally heterogeneous residues directly from high-resolution X-ray crystallography data. Contact networks determined for Escherichia coli dihydrofolate reductase (ecDHFR) predict the observed long-range pattern of NMR chemical shift perturbations of an allosteric mutation. A comparison of contact networks in wild-type and mutant ecDHFR suggests that mutations that alter optimized contact networks of coordinated motions can impair catalytic function. CONTACT-guided mutagenesis can exploit the structure-dynamics-function relationship in protein engineering and design.


==Function==
Automated identification of functional dynamic contact networks from X-ray crystallography.,van den Bedem H, Bhabha G, Yang K, Wright PE, Fraser JS Nat Methods. 2013 Aug 4. doi: 10.1038/nmeth.2592. PMID:23913260<ref>PMID:23913260</ref>
[[http://www.uniprot.org/uniprot/DYR_ECOLI DYR_ECOLI]] Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[4kjl]] is a 1 chain structure with sequence from [http://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=4KJL OCA].
</div>


==Reference==
==See Also==
<ref group="xtra">PMID:023913260</ref><references group="xtra"/><references/>
*[[Dihydrofolate reductase|Dihydrofolate reductase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Dihydrofolate reductase]]
[[Category: Dihydrofolate reductase]]
[[Category: Escherichia coli k-12]]
[[Category: Escherichia coli k-12]]
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[[Category: Yang, K.]]
[[Category: Yang, K.]]
[[Category: Oxidoreductase]]
[[Category: Oxidoreductase]]
[[Category: Rossman fold]]
[[Category: Rossmann fold]]
Retrieved from "https://proteopedia.org/4kjl"