4gr3: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4gr3]] is a 1 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=4GR3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4GR3 FirstGlance]. <br>
<table><tr><td colspan='2'>[[4gr3]] is a 1 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=4GR3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4GR3 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=R45:N-{(2S)-3-[(S)-(4-BROMOPHENYL)(HYDROXY)PHOSPHORYL]-2-[(3-PHENYL-1,2-OXAZOL-5-YL)METHYL]PROPANOYL}-L-ALPHA-GLUTAMYL-L-ALPHA-GLUTAMINE'>R45</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]] 1.494&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=R45:N-{(2S)-3-[(S)-(4-BROMOPHENYL)(HYDROXY)PHOSPHORYL]-2-[(3-PHENYL-1,2-OXAZOL-5-YL)METHYL]PROPANOYL}-L-ALPHA-GLUTAMYL-L-ALPHA-GLUTAMINE'>R45</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=4gr3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gr3 OCA], [https://pdbe.org/4gr3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4gr3 RCSB], [https://www.ebi.ac.uk/pdbsum/4gr3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4gr3 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=4gr3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gr3 OCA], [https://pdbe.org/4gr3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4gr3 RCSB], [https://www.ebi.ac.uk/pdbsum/4gr3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4gr3 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[https://www.uniprot.org/uniprot/MMP12_HUMAN MMP12_HUMAN] May be involved in tissue injury and remodeling. Has significant elastolytic activity. Can accept large and small amino acids at the P1' site, but has a preference for leucine. Aromatic or hydrophobic residues are preferred at the P1 site, with small hydrophobic residues (preferably alanine) occupying P3.
[https://www.uniprot.org/uniprot/MMP12_HUMAN MMP12_HUMAN] May be involved in tissue injury and remodeling. Has significant elastolytic activity. Can accept large and small amino acids at the P1' site, but has a preference for leucine. Aromatic or hydrophobic residues are preferred at the P1 site, with small hydrophobic residues (preferably alanine) occupying P3.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The molecular determinants responsible for the potency of the RXP470.1 phosphinic peptide inhibitor towards matrix metalloprotease-12 (MMP-12) remain elusive. To address this issue, structure-activity study, X-ray crystallography and isothermal titration calorimetry (ITC) experiments were performed. The crystal structure of MMP-12/inhibitor complex (1.15 A) reveals that the inhibitor establishes multiple interactions with the MMP-12 active site, with its long P1' side chain filling most part of the S1' deep cavity. ITC experiments indicate that the binding of this inhibitor to MMP-12 is mostly entropy driven (DeltaG degrees = -13.1 kcal/mol, DeltaH degrees = -2.53 kcal/mol and -TDeltaS degrees = -10.60 kcal/mol) and involves a proton uptake from the buffer. Comparing phosphinic versus hydroxamate inhibitors reveals that the chelation of the zinc ion is slightly different, leading the inhibitor backbone to adopt a position in which the hydrogen bonding with the MMP-12 active site is less favorable in phosphinic inhibitor, while maintaining high affinity.
Molecular determinants of a selective matrix metalloprotease-12 inhibitor: Insights from crystallography and thermodynamic studies.,Czarny B, Stura EA, Devel L, Vera L, Lajeunesse E, Beau F, Calderone V, Fragai M, Luchinat C, Dive V J Med Chem. 2013 Jan 23. PMID:23343195<ref>PMID:23343195</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4gr3" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Matrix metalloproteinase 3D structures|Matrix metalloproteinase 3D structures]]
*[[Matrix metalloproteinase 3D structures|Matrix metalloproteinase 3D structures]]
== References ==
<references/>
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</StructureSection>
</StructureSection>
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