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| | ==sPLA2 inhibitor 9== | | ==sPLA2 inhibitor 9== |
| - | <StructureSection load='2p5h' size='340' side='right'caption='[[2p5h]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | + | <StructureSection load='2p5h' size='340' side='right'caption='[[2p5h]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2p5h]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P5H OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2P5H FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2p5h]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P5H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2P5H FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2p5j|2p5j]], [[2p60|2p60]]</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2p5h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p5h OCA], [http://pdbe.org/2p5h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2p5h RCSB], [http://www.ebi.ac.uk/pdbsum/2p5h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2p5h 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=2p5h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p5h OCA], [https://pdbe.org/2p5h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2p5h RCSB], [https://www.ebi.ac.uk/pdbsum/2p5h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2p5h ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Arjunan, P]] | + | [[Category: Arjunan P]] |
| - | [[Category: Gopalakrishnakone, P P]] | + | [[Category: Gopalakrishnakone PP]] |
| - | [[Category: Nagarajarao, L M]] | + | [[Category: Nagarajarao LM]] |
| - | [[Category: Sato, K]] | + | [[Category: Sato K]] |
| - | [[Category: Satyanarayanajois, D S]] | + | [[Category: Satyanarayanajois DS]] |
| - | [[Category: Thwin, M M]] | + | [[Category: Thwin MM]] |
| - | [[Category: Hydrolase inhibitor]]
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| - | [[Category: Inhibitor]]
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| - | [[Category: Spla2]]
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| Structural highlights
Publication Abstract from PubMed
Secretory phospholipase A2 (sPLA2) and matrix metallopreoteinases (MMPs) are key enzymes involved in rheumatoid arthritis (RA), and their modulation thus represents a potential therapeutic option. On the basis of Escherichia coli radioassay, synthetic peptides were designed and screened for sPLA2 inhibition. The linear peptide, 10f (PIP-18), inhibited the recombinant human synovial sPLA2 activity with an IC50 of 1.19 microM. Not only did the peptide interfere with the function of sPLA2, but it also appeared to inhibit mRNA expression of sPLA2 and various MMPs in IL-1beta-stimulated RA synovial fibroblast (RASF) cultures and thereby the production of the corresponding proteins (>80% inhibition). Nuclear magnetic resonance (NMR), modeling, and docking studies indicate that in solution the peptide exhibits a beta-turn at residues Trp-Asp-Gly-Val and possibly binds to the hydrophobic channel of sPLA2. The results strongly suggest that the modulatory action of peptide 10f may play a major role in counteracting the development of RA.
Novel peptide inhibitors of human secretory phospholipase A2 with antiinflammatory activity: solution structure and molecular modeling.,Thwin MM, Satyanarayanajois SD, Nagarajarao LM, Sato K, Arjunan P, Ramapatna SL, Kumar PV, Gopalakrishnakone P J Med Chem. 2007 Nov 29;50(24):5938-50. Epub 2007 Nov 1. PMID:17973469[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Thwin MM, Satyanarayanajois SD, Nagarajarao LM, Sato K, Arjunan P, Ramapatna SL, Kumar PV, Gopalakrishnakone P. Novel peptide inhibitors of human secretory phospholipase A2 with antiinflammatory activity: solution structure and molecular modeling. J Med Chem. 2007 Nov 29;50(24):5938-50. Epub 2007 Nov 1. PMID:17973469 doi:10.1021/jm070385x
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