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1rwp

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Revision as of 06:38, 5 April 2017

Crystal structure of human caspase-1 in complex with 3-{6-[(8-hydroxy-quinoline-2-carbonyl)-amino]-2-thiophen-2-yl-hexanoylamino}-4-oxo-butyric acid

Structural highlights

1rwp is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1ice, 1bmq, 1ibc, 1rwk, 1rwm, 1rwn, 1rwo, 1rwv, 1rww, 1rwx
Activity:	Caspase-1, with EC number 3.4.22.36
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CASP1_HUMAN] Thiol protease that cleaves IL-1 beta between an Asp and an Ala, releasing the mature cytokine which is involved in a variety of inflammatory processes. Important for defense against pathogens. Cleaves and activates sterol regulatory element binding proteins (SREBPs). Can also promote apoptosis.^[1] ^[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Caspase-1 is a key endopeptidase responsible for the post-translational processing of the IL-1beta and IL-18 cytokines and small-molecule inhibitors that modulate the activity of this enzyme are predicted to be important therapeutic treatments for many inflammatory diseases. A fragment-assembly approach, accompanied by structural analysis, was employed to generate caspase-1 inhibitors. With the aid of Tethering with extenders (small molecules that bind to the active-site cysteine and contain a free thiol), two novel fragments that bound to the active site and made a disulfide bond with the extender were identified by mass spectrometry. Direct linking of each fragment to the extender generated submicromolar reversible inhibitors that significantly reduced secretion of IL-1beta but not IL-6 from human peripheral blood mononuclear cells. Thus, Tethering with extenders facilitated rapid identification and synthesis of caspase-1 inhibitors with cell-based activity and subsequent structural analyses provided insights into the enzyme's ability to accommodate different inhibitor-binding modes in the active site.

Structural analysis of caspase-1 inhibitors derived from Tethering.,O'Brien T, Fahr BT, Sopko MM, Lam JW, Waal ND, Raimundo BC, Purkey HE, Pham P, Romanowski MJ Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 May 1;61(Pt, 5):451-8. Epub 2005 Apr 9. PMID:16511067^[3]

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

References

↑ Alnemri ES, Fernandes-Alnemri T, Litwack G. Cloning and expression of four novel isoforms of human interleukin-1 beta converting enzyme with different apoptotic activities. J Biol Chem. 1995 Mar 3;270(9):4312-7. PMID:7876192
↑ Feng Q, Li P, Leung PC, Auersperg N. Caspase-1zeta, a new splice variant of the caspase-1 gene. Genomics. 2004 Sep;84(3):587-91. PMID:15498465 doi:http://dx.doi.org/S0888-7543(04)00161-2
↑ O'Brien T, Fahr BT, Sopko MM, Lam JW, Waal ND, Raimundo BC, Purkey HE, Pham P, Romanowski MJ. Structural analysis of caspase-1 inhibitors derived from Tethering. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 May 1;61(Pt, 5):451-8. Epub 2005 Apr 9. PMID:16511067 doi:10.1107/S1744309105010109

1 Structural highlights
2 Function
3 Evolutionary Conservation
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/1rwp"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human caspase-1 in complex with 3-{6-[(8-hydroxy-quinoline-2-carbonyl)-amino]-2-thiophen-2-yl-hexanoylamino}-4-oxo-butyric acid==
 <StructureSection load='1rwp' size='340' side='right' caption='[[1rwp]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1rwp]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RWP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1RWP FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1rwp]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RWP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1RWP FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=HQC:3-{6-[(8-HYDROXY-QUINOLINE-2-CARBONYL)-AMINO]-2-THIOPHEN-2-YL-HEXANOYLAMINO}-4-OXO-BUTYRI+ACID'>HQC</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ice|1ice]], [[1bmq|1bmq]], [[1ibc|1ibc]], [[1rwk|1rwk]], [[1rwm|1rwm]], [[1rwn|1rwn]], [[1rwo|1rwo]], [[1rwv|1rwv]], [[1rww|1rww]], [[1rwx|1rwx]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CASP1, IL1BC, IL1BCE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Caspase-1 Caspase-1], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.36 3.4.22.36] </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=1rwp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rwp OCA], [http://pdbe.org/1rwp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1rwp RCSB], [http://www.ebi.ac.uk/pdbsum/1rwp 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=1rwp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rwp OCA], [http://pdbe.org/1rwp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1rwp RCSB], [http://www.ebi.ac.uk/pdbsum/1rwp PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1rwp ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 38: / Line 38: @@
 </StructureSection>
 [[Category: Caspase-1]]
-[[Category: Human]]
 [[Category: Brien, T O]]
 [[Category: Fahr, B T]]

1rwp

From Proteopedia

Revision as of 06:38, 5 April 2017

Crystal structure of human caspase-1 in complex with 3-{6-[(8-hydroxy-quinoline-2-carbonyl)-amino]-2-thiophen-2-yl-hexanoylamino}-4-oxo-butyric acid

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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