2p5h

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{{Seed}}
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[[Image:2p5h.png|left|200px]]
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{{STRUCTURE_2p5h| PDB=2p5h | SCENE= }}
{{STRUCTURE_2p5h| PDB=2p5h | SCENE= }}
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'''sPLA2 inhibitor 9'''
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===sPLA2 inhibitor 9===
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==Overview==
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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 (&gt;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.
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The line below this paragraph, {{ABSTRACT_PUBMED_17973469}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 17973469 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17973469}}
==About this Structure==
==About this Structure==
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P5H OCA].
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Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P5H OCA].
==Reference==
==Reference==
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[[Category: Inhibitor]]
[[Category: Inhibitor]]
[[Category: Spla2]]
[[Category: Spla2]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 12:24:21 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 04:14:13 2008''

Revision as of 01:14, 29 July 2008

Image:2p5h.png

Template:STRUCTURE 2p5h

sPLA2 inhibitor 9

Template:ABSTRACT PUBMED 17973469

About this Structure

Full experimental information is available from OCA.

Reference

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

Page seeded by OCA on Tue Jul 29 04:14:13 2008

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