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| | <StructureSection load='3dej' size='340' side='right'caption='[[3dej]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='3dej' size='340' side='right'caption='[[3dej]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3dej]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DEJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DEJ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3dej]] is a 4 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=3DEJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DEJ FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=RXC:(1S)-1-(3-CHLOROPHENYL)-2-OXO-2-[(1,3,4-TRIOXO-1,2,3,4-TETRAHYDROISOQUINOLIN-5-YL)AMINO]ETHYL+ACETATE'>RXC</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]] 2.6Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=OCS:CYSTEINESULFONIC+ACID'>OCS</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=OCS:CYSTEINESULFONIC+ACID'>OCS</scene>, <scene name='pdbligand=RXC:(1S)-1-(3-CHLOROPHENYL)-2-OXO-2-[(1,3,4-TRIOXO-1,2,3,4-TETRAHYDROISOQUINOLIN-5-YL)AMINO]ETHYL+ACETATE'>RXC</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3deh|3deh]], [[3dei|3dei]], [[3dek|3dek]]</div></td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Caspase-3 Caspase-3], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.22.56 3.4.22.56] </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=3dej FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dej OCA], [https://pdbe.org/3dej PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dej RCSB], [https://www.ebi.ac.uk/pdbsum/3dej PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dej 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=3dej FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dej OCA], [https://pdbe.org/3dej PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dej RCSB], [https://www.ebi.ac.uk/pdbsum/3dej PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dej ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/CASP3_HUMAN CASP3_HUMAN]] Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp-|-Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop-helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin. Triggers cell adhesion in sympathetic neurons through RET cleavage.<ref>PMID:7596430</ref> <ref>PMID:21357690</ref>
| + | [https://www.uniprot.org/uniprot/CASP3_HUMAN CASP3_HUMAN] Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp-|-Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop-helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin. Triggers cell adhesion in sympathetic neurons through RET cleavage.<ref>PMID:7596430</ref> <ref>PMID:21357690</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Caspase-3]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Ding, J]] | + | [[Category: Ding J]] |
| - | [[Category: Du, J]] | + | [[Category: Du J]] |
| - | [[Category: Li, J]] | + | [[Category: Li J]] |
| - | [[Category: Wu, J]] | + | [[Category: Wu J]] |
| - | [[Category: 4-trione derivative]]
| + | |
| - | [[Category: Apoptosis]]
| + | |
| - | [[Category: Cytoplasm]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Inactivation]]
| + | |
| - | [[Category: Isoquinoline-1]]
| + | |
| - | [[Category: Phosphoprotein]]
| + | |
| - | [[Category: Polymorphism]]
| + | |
| - | [[Category: Protease]]
| + | |
| - | [[Category: Protein-inhibitor complex]]
| + | |
| - | [[Category: S-nitrosylation]]
| + | |
| - | [[Category: Thiol protease]]
| + | |
| - | [[Category: Zymogen]]
| + | |
| Structural highlights
Function
CASP3_HUMAN Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp-|-Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop-helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin. Triggers cell adhesion in sympathetic neurons through RET cleavage.[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-3 is an attractive therapeutic target for treatment of diseases involving disregulated apoptosis. We report here the mechanism of caspase-3 inactivation by isoquinoline-1,3,4-trione derivatives. Kinetic analysis indicates the compounds can irreversibly inactivate caspase-3 in a 1,4-dithiothreitol (DTT)- and oxygen-dependent manner, implying that a redox cycle might take place in the inactivation process. Reactive oxygen species detection experiments using a chemical indicator, together with electron spin resonance measurement, suggest that ROS can be generated by reaction of isoquinoline-1,3,4-trione derivatives with DTT. Oxygen-free radical scavenger catalase and superoxide dismutase eliciting the inactivation of caspase-3 by the inhibitors confirm that ROS mediates the inactivation process. Crystal structures of caspase-3 in complexes with isoquinoline-1,3,4-trione derivatives show that the catalytic cysteine is oxidized to sulfonic acid (-SO(3)H) and isoquinoline-1,3,4-trione derivatives are bound at the dimer interface of caspase-3. Further mutagenesis study shows that the binding of the inhibitors with caspase-3 appears to be nonspecific. Isoquinoline-1,3,4-trione derivative-catalyzed caspase-3 inactivation could also be observed when DTT is substituted with dihydrolipoic acid, which exists widely in cells and might play an important role in the in vivo inactivation process in which the inhibitors inactivate caspase-3 in cells and then prevent the cells from apoptosis. These results provide valuable information for further development of small molecular inhibitors against caspase-3 or other oxidation-sensitive proteins.
Isoquinoline-1,3,4-trione derivatives inactivate caspase-3 by generation of reactive oxygen species.,Du JQ, Wu J, Zhang HJ, Zhang YH, Qiu BY, Wu F, Chen YH, Li JY, Nan FJ, Ding JP, Li J J Biol Chem. 2008 Oct 31;283(44):30205-15. Epub 2008 Sep 2. PMID:18768468[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Nicholson DW, Ali A, Thornberry NA, Vaillancourt JP, Ding CK, Gallant M, Gareau Y, Griffin PR, Labelle M, Lazebnik YA, et al.. Identification and inhibition of the ICE/CED-3 protease necessary for mammalian apoptosis. Nature. 1995 Jul 6;376(6535):37-43. PMID:7596430 doi:http://dx.doi.org/10.1038/376037a0
- ↑ Cabrera JR, Bouzas-Rodriguez J, Tauszig-Delamasure S, Mehlen P. RET modulates cell adhesion via its cleavage by caspase in sympathetic neurons. J Biol Chem. 2011 Apr 22;286(16):14628-38. doi: 10.1074/jbc.M110.195461. Epub, 2011 Feb 28. PMID:21357690 doi:10.1074/jbc.M110.195461
- ↑ Du JQ, Wu J, Zhang HJ, Zhang YH, Qiu BY, Wu F, Chen YH, Li JY, Nan FJ, Ding JP, Li J. Isoquinoline-1,3,4-trione derivatives inactivate caspase-3 by generation of reactive oxygen species. J Biol Chem. 2008 Oct 31;283(44):30205-15. Epub 2008 Sep 2. PMID:18768468 doi:10.1074/jbc.M803347200
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