Difference between revisions of "Caspase-3"

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===Protein Function ===
 
===Protein Function ===
Caspases (cysteine-aspartic acid protease (Caspase) family) are a family of cysteine proteases that have important intracellular roles in inflammation and apoptosis. Activation of Caspases ensures that the cellular components are degraded in a controlled manner, carrying out cell death with minimal effect on surrounding tissues. Caspases exist as inactive proenzymes composed of a prodomain, a large protease subunit, and a small protease subunit. Activation of Caspases requires proteolytic processing at conserved internal aspartic residues to generate a heterodimeric enzyme consisting of the large and small subunits. <br/>  
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Caspases (cysteine-aspartic acid protease (Caspase) family) are a family of cysteine proteases that have important intracellular roles in inflammation and apoptosis. Activation of Caspases ensures that the cellular components are degraded in a controlled manner, carrying out cell death with minimal effect on surrounding tissues. Caspases exist as inactive proenzymes composed of a prodomain, a large protease subunit, and a small protease subunit. Activation of Caspases requires proteolytic processing at conserved internal aspartic residues to generate a heterodimeric enzyme consisting of the large and small subunits. <br/> <br/>
  
 
===Cys Function & Property===
 
===Cys Function & Property===
The catalytic triad in Caspase-3 comprises Cys163, His121 and the backbone carbonyl oxygen atom of Arg64, which points towards the Nϵ atom of His121.<br/>
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The catalytic triad in Caspase-3 comprises Cys163, His121 and the backbone carbonyl oxygen atom of Arg64, which points towards the Nϵ atom of His121.<br/><br/>
  
 
* Hydrophobic property:
 
* Hydrophobic property:
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==Reference==
 
==Reference==
# Y Wei, T Fox, S P Chambers et al. '''The structures of caspases-1, -3, -7 and -8 reveal the basis for substrate and inhibitor selectivity.''' Chem Biol, 2000, 7(6): 423-432. [https://www.ncbi.nlm.nih.gov/pubmed/?term=10873833 10873833]<br/>
+
# Y Wei, T Fox, S P Chambers et al. '''The structures of caspases-1, -3, -7 and -8 reveal the basis for substrate and inhibitor selectivity[J].''' Chem Biol, 2000, 7(6): 423-432. [https://www.ncbi.nlm.nih.gov/pubmed/?term=10873833 10873833]<br/>
 
# Erlanson D A, Lam J W, Wiesmann C, et al. '''In situ assembly of enzyme inhibitors using extended tethering[J].''' Nature biotechnology, 2003, 21(3): 308. [https://www.ncbi.nlm.nih.gov/pubmed/?term=12563278 12563278]<br/>
 
# Erlanson D A, Lam J W, Wiesmann C, et al. '''In situ assembly of enzyme inhibitors using extended tethering[J].''' Nature biotechnology, 2003, 21(3): 308. [https://www.ncbi.nlm.nih.gov/pubmed/?term=12563278 12563278]<br/>
  

Latest revision as of 05:15, 4 January 2020

Basic Information
Short Name CASP3
UNP ID P42574
Organism Homo sapiens
Cys Site Cys163
Family/Domain Peptidase C14A family
Known Ligand Ligand list
Function Type Protease

Summary

Protein Function

Caspases (cysteine-aspartic acid protease (Caspase) family) are a family of cysteine proteases that have important intracellular roles in inflammation and apoptosis. Activation of Caspases ensures that the cellular components are degraded in a controlled manner, carrying out cell death with minimal effect on surrounding tissues. Caspases exist as inactive proenzymes composed of a prodomain, a large protease subunit, and a small protease subunit. Activation of Caspases requires proteolytic processing at conserved internal aspartic residues to generate a heterodimeric enzyme consisting of the large and small subunits.

Cys Function & Property

The catalytic triad in Caspase-3 comprises Cys163, His121 and the backbone carbonyl oxygen atom of Arg64, which points towards the Nϵ atom of His121.

  • Hydrophobic property:
594-hydro.png
  • SASA:
Cys163: 7.11 A^2

Protein Sequence

MENTENSVDS KSIKNLEPKI IHGSESMDSG ISLDNSYKMD YPEMGLCIII
NNKNFHKSTG MTSRSGTDVD AANLRETFRN LKYEVRNKND LTREEIVELM
RDVSKEDHSK RSSFVCVLLS HGEEGIIFGT NGPVDLKKIT NFFRGDRCRS
LTGKPKLFII QACRGTELDC GIETDSGVDD DMACHKIPVE ADFLYAYSTA
PGYYSWRNSK DGSWFIQSLC AMLKQYADKL EFMHILTRVN RKVATEFESF
SFDATFHAKK QIPCIVSMLT KELYFYH

Structural Information

  • Known structure with covalent ligand:
1PAU
1NME
1NMQ
1NMS


  • Protein structure:
594.png

Related Pathway


Experimental Evidence

Crystallography

Reference

  1. Y Wei, T Fox, S P Chambers et al. The structures of caspases-1, -3, -7 and -8 reveal the basis for substrate and inhibitor selectivity[J]. Chem Biol, 2000, 7(6): 423-432. 10873833
  2. Erlanson D A, Lam J W, Wiesmann C, et al. In situ assembly of enzyme inhibitors using extended tethering[J]. Nature biotechnology, 2003, 21(3): 308. 12563278