1n1m

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[[Image:1n1m.png|left|200px]]
 
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{{STRUCTURE_1n1m| PDB=1n1m | SCENE= }}
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==Human Dipeptidyl Peptidase IV/CD26 in complex with an inhibitor==
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<StructureSection load='1n1m' size='340' side='right'caption='[[1n1m]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1n1m]] is a 2 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=1N1M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N1M FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A3M:2-AMINO-3-METHYL-1-PYRROLIDIN-1-YL-BUTAN-1-ONE'>A3M</scene>, <scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=NDG:2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE'>NDG</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1n1m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n1m OCA], [https://pdbe.org/1n1m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n1m RCSB], [https://www.ebi.ac.uk/pdbsum/1n1m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n1m ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DPP4_HUMAN DPP4_HUMAN] Cell surface glycoprotein receptor involved in the costimulatory signal essential for T-cell receptor (TCR)-mediated T-cell activation. Acts as a positive regulator of T-cell coactivation, by binding at least ADA, CAV1, IGF2R, and PTPRC. Its binding to CAV1 and CARD11 induces T-cell proliferation and NF-kappa-B activation in a T-cell receptor/CD3-dependent manner. Its interaction with ADA also regulates lymphocyte-epithelial cell adhesion. In association with FAP is involved in the pericellular proteolysis of the extracellular matrix (ECM), the migration and invasion of endothelial cells into the ECM. May be involved in the promotion of lymphatic endothelial cells adhesion, migration and tube formation. When overexpressed, enhanced cell proliferation, a process inhibited by GPC3. Acts also as a serine exopeptidase with a dipeptidyl peptidase activity that regulates various physiological processes by cleaving peptides in the circulation, including many chemokines, mitogenic growth factors, neuropeptides and peptide hormones. Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline.<ref>PMID:10951221</ref> <ref>PMID:17549790</ref> <ref>PMID:10570924</ref> <ref>PMID:10900005</ref> <ref>PMID:11772392</ref> <ref>PMID:14691230</ref> <ref>PMID:16651416</ref> <ref>PMID:17287217</ref> <ref>PMID:18708048</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n1/1n1m_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=1n1m ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Dipeptidyl peptidase IV (DPP-IV/CD26) is a multifunctional type II transmembrane serine peptidase. This enzyme contributes to the regulation of various physiological processes, including blood sugar homeostasis, by cleaving peptide hormones, chemokines and neuropeptides. We have determined the 2.5 A structure of the extracellular region of DPP-IV in complex with the inhibitor valine-pyrrolidide. The catalytic site is located in a large cavity formed between the alpha/beta-hydrolase domain and an eight-bladed beta-propeller domain. Both domains participate in inhibitor binding. The structure indicates how substrate specificity is achieved and reveals a new and unexpected opening to the active site.
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===Human Dipeptidyl Peptidase IV/CD26 in complex with an inhibitor===
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Crystal structure of human dipeptidyl peptidase IV/CD26 in complex with a substrate analog.,Rasmussen HB, Branner S, Wiberg FC, Wagtmann N Nat Struct Biol. 2003 Jan;10(1):19-25. PMID:12483204<ref>PMID:12483204</ref>
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{{ABSTRACT_PUBMED_12483204}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 1n1m" style="background-color:#fffaf0;"></div>
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[[1n1m]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N1M OCA].
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==See Also==
==See Also==
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*[[Dipeptidyl peptidase|Dipeptidyl peptidase]]
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*[[Dipeptidyl peptidase 3D structures|Dipeptidyl peptidase 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:012483204</ref><ref group="xtra">PMID:012892317</ref><references group="xtra"/>
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__TOC__
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[[Category: Dipeptidyl-peptidase IV]]
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Branner, S.]]
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[[Category: Large Structures]]
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[[Category: Rasmussen, H B.]]
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[[Category: Branner S]]
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[[Category: Wagtmann, N R.]]
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[[Category: Rasmussen HB]]
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[[Category: Wiberg, F C.]]
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[[Category: Wagtmann NR]]
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[[Category: Alpha/beta]]
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[[Category: Wiberg FC]]
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[[Category: Beta-propeller]]
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[[Category: Dimer]]
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[[Category: Hydrolase]]
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Current revision

Human Dipeptidyl Peptidase IV/CD26 in complex with an inhibitor

PDB ID 1n1m

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