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4g8r

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Revision as of 14:10, 5 August 2016

Crystal Structure of a novel small molecule inactivator bound to plasminogen activator inhibitor-1

Structural highlights

4g8r is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	1b3k, 4g8o
Gene:	PAI-1, PAI1, PLANH1, SERPINE1 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[PAI1_HUMAN] Defects in SERPINE1 are the cause of plasminogen activator inhibitor-1 deficiency (PAI-1D) [MIM:613329]. It is a hematologic disorder characterized by increased bleeding after trauma, injury, or surgery. Affected females have menorrhagia. The bleeding defect is due to increased fibrinolysis of fibrin blood clots due to deficiency of plasminogen activator inhibitor-1, which inhibits tissue and urinary activators of plasminogen.^[1] Note=High concentrations of SERPINE1 seem to contribute to the development of venous but not arterial occlusions.

Function

[PAI1_HUMAN] Serine protease inhibitor. This inhibitor acts as 'bait' for tissue plasminogen activator, urokinase, protein C and matriptase-3/TMPRSS7. Its rapid interaction with PLAT may function as a major control point in the regulation of fibrinolysis.^[2]

Publication Abstract from PubMed

Plasminogen activator inhibitor type-1 (PAI-1) is a member of the serine protease inhibitor (serpin) family. Excessive PAI-1 activity is associated with human disease, making it an attractive pharmaceutical target. However, like other serpins, PAI-1 has a labile structure, making it a difficult target for the development of small molecule inhibitors, and to date, there are no US Food and Drug Administration-approved small molecule inactivators of any serpins. Here we describe the mechanistic and structural characterization of a high affinity inactivator of PAI-1. This molecule binds to PAI-1 reversibly and acts through an allosteric mechanism that inhibits PAI-1 binding to proteases and to its cofactor vitronectin. The binding site is identified by X-ray crystallography and mutagenesis as a pocket at the interface of beta-sheets B and C and alpha-helix H. A similar pocket is present on other serpins, suggesting that this site could be a common target in this structurally conserved protein family.

Mechanistic characterization and crystal structure of a small molecule inactivator bound to plasminogen activator inhibitor-1.,Li SH, Reinke AA, Sanders KL, Emal CD, Whisstock JC, Stuckey JA, Lawrence DA Proc Natl Acad Sci U S A. 2013 Dec 17;110(51):E4941-9. doi:, 10.1073/pnas.1216499110. Epub 2013 Dec 2. PMID:24297881^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Fay WP, Parker AC, Condrey LR, Shapiro AD. Human plasminogen activator inhibitor-1 (PAI-1) deficiency: characterization of a large kindred with a null mutation in the PAI-1 gene. Blood. 1997 Jul 1;90(1):204-8. PMID:9207454
↑ Szabo R, Netzel-Arnett S, Hobson JP, Antalis TM, Bugge TH. Matriptase-3 is a novel phylogenetically preserved membrane-anchored serine protease with broad serpin reactivity. Biochem J. 2005 Aug 15;390(Pt 1):231-42. PMID:15853774 doi:BJ20050299
↑ Li SH, Reinke AA, Sanders KL, Emal CD, Whisstock JC, Stuckey JA, Lawrence DA. Mechanistic characterization and crystal structure of a small molecule inactivator bound to plasminogen activator inhibitor-1. Proc Natl Acad Sci U S A. 2013 Dec 17;110(51):E4941-9. doi:, 10.1073/pnas.1216499110. Epub 2013 Dec 2. PMID:24297881 doi:http://dx.doi.org/10.1073/pnas.1216499110

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4g8r"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of a novel small molecule inactivator bound to plasminogen activator inhibitor-1==
 <StructureSection load='4g8r' size='340' side='right' caption='[[4g8r]], [[Resolution|resolution]] 2.19&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1b3k|1b3k]], [[4g8o|4g8o]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PAI-1, PAI1, PLANH1, SERPINE1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4g8r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g8r OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4g8r RCSB], [http://www.ebi.ac.uk/pdbsum/4g8r PDBsum]</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=4g8r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g8r OCA], [http://pdbe.org/4g8r PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4g8r RCSB], [http://www.ebi.ac.uk/pdbsum/4g8r PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4g8r ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4g8r" style="background-color:#fffaf0;"></div>
 ==See Also==

4g8r

From Proteopedia

Revision as of 14:10, 5 August 2016

Crystal Structure of a novel small molecule inactivator bound to plasminogen activator inhibitor-1

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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