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==Crystal Structure of Adenosine Deaminase complexed with FR117016==
==Crystal Structure of Adenosine Deaminase complexed with FR117016==
<StructureSection load='1ndv' size='340' side='right' caption='[[1ndv]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
<StructureSection load='1ndv' size='340' side='right'caption='[[1ndv]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1ndv]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NDV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1NDV FirstGlance]. <br>
<table><tr><td colspan='2'>[[1ndv]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NDV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NDV FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FR0:N-(4-(5-((1H-BENZIMIDAZOL-2-YLAMINO)METHYL)-2-THIENYL)-1,3-THIAZOL-2-YL)GUANIDINE'>FR0</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]] 2.3&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ndw|1ndw]], [[1ndy|1ndy]], [[1ndz|1ndz]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FR0:N-(4-(5-((1H-BENZIMIDAZOL-2-YLAMINO)METHYL)-2-THIENYL)-1,3-THIAZOL-2-YL)GUANIDINE'>FR0</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Adenosine_deaminase Adenosine deaminase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.4.4 3.5.4.4] </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=1ndv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ndv OCA], [https://pdbe.org/1ndv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ndv RCSB], [https://www.ebi.ac.uk/pdbsum/1ndv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ndv ProSAT]</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=1ndv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ndv OCA], [http://pdbe.org/1ndv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ndv RCSB], [http://www.ebi.ac.uk/pdbsum/1ndv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ndv ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/ADA_BOVIN ADA_BOVIN]] Catalyzes the hydrolytic deamination of adenosine and 2-deoxyadenosine. Plays an important role in purine metabolism and in adenosine homeostasis. Modulates signaling by extracellular adenosine, and so contributes indirectly to cellular signaling events. Acts as a positive regulator of T-cell coactivation, by binding DPP4. Its interaction with DPP4 regulates lymphocyte-epithelial cell adhesion (By similarity).  
[https://www.uniprot.org/uniprot/ADA_BOVIN ADA_BOVIN] Catalyzes the hydrolytic deamination of adenosine and 2-deoxyadenosine. Plays an important role in purine metabolism and in adenosine homeostasis. Modulates signaling by extracellular adenosine, and so contributes indirectly to cellular signaling events. Acts as a positive regulator of T-cell coactivation, by binding DPP4. Its interaction with DPP4 regulates lymphocyte-epithelial cell adhesion (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ndv ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ndv ConSurf].
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== Publication Abstract from PubMed ==
We disclose herein the rapid discovery of the first highly potent (Ki = 7.7 nM) non-nucleoside adenosine deaminase (ADA) inhibitor based on the rational hybridization of two structurally distinct leads. Two micromolar inhibitors were discovered by a parallel rational design and random screening program, and individual crystal structures of bovine ADA in complexation with these inhibitors revealed several unknown binding sites and distinct binding modes. Using this information as the starting point, highly effective lead hybridization was achieved in only two structure-based drug design iterations. The conceptual approach illustrated by this example promises to be broadly useful in the search for new chemical entities and can contribute greatly to improve the overall efficiency and speed of drug discovery.


A highly potent non-nucleoside adenosine deaminase inhibitor: efficient drug discovery by intentional lead hybridization.,Terasaka T, Kinoshita T, Kuno M, Nakanishi I J Am Chem Soc. 2004 Jan 14;126(1):34-5. PMID:14709046<ref>PMID:14709046</ref>
==See Also==
 
*[[Adenosine deaminase 3D structures|Adenosine deaminase 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1ndv" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Adenosine deaminase]]
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Kinoshita, T]]
[[Category: Large Structures]]
[[Category: Beta barrel]]
[[Category: Kinoshita T]]
[[Category: Hydrolase]]
[[Category: Inhibitor-induced conformational change]]
[[Category: Structure-based drug design]]

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