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==Crystal structure of human phosphodiesterase 2A with 1-(2-chlorophenyl)-N,4-dimethyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide==
==Crystal structure of human phosphodiesterase 2A with 1-(2-chlorophenyl)-N,4-dimethyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide==
<StructureSection load='6c7e' size='340' side='right' caption='[[6c7e]], [[Resolution|resolution]] 1.43&Aring;' scene=''>
<StructureSection load='6c7e' size='340' side='right'caption='[[6c7e]], [[Resolution|resolution]] 1.43&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6c7e]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C7E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6C7E FirstGlance]. <br>
<table><tr><td colspan='2'>[[6c7e]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6C7E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6C7E FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EOG:1-(2-chlorophenyl)-N,4-dimethyl[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide'>EOG</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.43&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/3',5'-cyclic-nucleotide_phosphodiesterase 3',5'-cyclic-nucleotide phosphodiesterase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.17 3.1.4.17] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EOG:1-(2-chlorophenyl)-N,4-dimethyl[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide'>EOG</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6c7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c7e OCA], [http://pdbe.org/6c7e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6c7e RCSB], [http://www.ebi.ac.uk/pdbsum/6c7e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6c7e ProSAT]</span></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=6c7e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6c7e OCA], [https://pdbe.org/6c7e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6c7e RCSB], [https://www.ebi.ac.uk/pdbsum/6c7e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6c7e ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PDE2A_HUMAN PDE2A_HUMAN]] Cyclic nucleotide phosphodiesterase with a dual-specificity for the second messengers cAMP and cGMP, which are key regulators of many important physiological processes.<ref>PMID:15938621</ref> <ref>PMID:19828435</ref>
[https://www.uniprot.org/uniprot/PDE2A_HUMAN PDE2A_HUMAN] Cyclic nucleotide phosphodiesterase with a dual-specificity for the second messengers cAMP and cGMP, which are key regulators of many important physiological processes.<ref>PMID:15938621</ref> <ref>PMID:19828435</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
In medicinal chemistry, additivity-based SAR analysis rests on three assumptions: (1) con-sistent binding pose of the central scaffold, (2) no interaction between the substitutions, and (3) a relatively rigid binding pocket in which the two substitutions act independently. Previously, non-additive SAR have been documented in systems that deviate from the first two assump-tions. Interestingly, protein structural change upon ligand binding, through induced fit or con-formational selection, although a well-known phenomenon that invalidates the third assump-tion, has not been linked to non-additive SAR conclusively. Here, for the first time, we show clear structural evidence that the formation of a hydrophobic pocket upon ligand binding in PDE2 catalytic site reduces the size of another distinct sub-pocket, and contribute to strong non-additive SAR between two otherwise distant R groups.


Mathematical and Structural Characterization of Strong Non-additive SAR Caused by Protein Conformational Changes.,Gomez L, Xu R, Sinko W, Selfridge B, Vernier WF, Ly K, Truong R, Metz M, Marrone T, Sebring K, Yan Y, Appleton B, Aertgeerts K, Massari E, Breitenbucher JG J Med Chem. 2018 Aug 2. doi: 10.1021/acs.jmedchem.8b00713. PMID:30070482<ref>PMID:30070482</ref>
==See Also==
 
*[[Phosphodiesterase 3D structures|Phosphodiesterase 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6c7e" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: 3',5'-cyclic-nucleotide phosphodiesterase]]
[[Category: Homo sapiens]]
[[Category: Aertgeerts, K]]
[[Category: Large Structures]]
[[Category: Xu, R]]
[[Category: Aertgeerts K]]
[[Category: Hydrolase]]
[[Category: Xu R]]
[[Category: Phosphodiesterase]]

Latest revision as of 17:26, 13 March 2024

Crystal structure of human phosphodiesterase 2A with 1-(2-chlorophenyl)-N,4-dimethyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamideCrystal structure of human phosphodiesterase 2A with 1-(2-chlorophenyl)-N,4-dimethyl-[1,2,4]triazolo[4,3-a]quinoxaline-8-carboxamide

Structural highlights

6c7e is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.43Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PDE2A_HUMAN Cyclic nucleotide phosphodiesterase with a dual-specificity for the second messengers cAMP and cGMP, which are key regulators of many important physiological processes.[1] [2]

See Also

References

  1. ↑ Iffland A, Kohls D, Low S, Luan J, Zhang Y, Kothe M, Cao Q, Kamath AV, Ding YH, Ellenberger T. Structural determinants for inhibitor specificity and selectivity in PDE2A using the wheat germ in vitro translation system. Biochemistry. 2005 Jun 14;44(23):8312-25. PMID:15938621 doi:10.1021/bi047313h
  2. ↑ Pandit J, Forman MD, Fennell KF, Dillman KS, Menniti FS. Mechanism for the allosteric regulation of phosphodiesterase 2A deduced from the X-ray structure of a near full-length construct. Proc Natl Acad Sci U S A. 2009 Oct 14. PMID:19828435

6c7e, resolution 1.43Å

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