Recombinant Human Caspase-3 Protein, CF Summary
Product Specifications
Ser29-Asp175 (subunit 1) & Ala183-His277 (Asp190Glu) (subunit 2)
Analysis
Product Datasheets
707-C3/CF (carrier free)
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
707-C3/CF
Formulation | Supplied as a 0.2 μm filtered solution in HEPES, NaCl, DTT and Sucrose. |
Shipping | The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below. |
Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Assay Procedure
- Assay Buffer: 25 mM HEPES, 0.1% (w/v) CHAPS, 10 mM dithiothreitol (DTT), pH 7.5
- Recombinant Human Caspase-3 (rhCaspase-3) (Catalog # 707-C3/CF)
- Substrate: Ac-Asp-Glu-Val-Asp-AFC (MP Biomedicals, Catalog # AFC138), 10 mM stock in DMSO
- F16 Black Maxisorp Plate (Nunc, Catalog # 475515)
- Fluorescent Plate Reader (Model: SpectraMax Gemini EM by Molecular Devices) or equivalent
- Dilute rhCaspase 3 to 0.4 ng/µL in Assay Buffer.
- Dilute Substrate to 100 µM in Assay Buffer.
- Load 50 µL of 0.4 ng/µL rhCaspase 3 into a plate, and start the reaction by adding 50 µL of 100 µM Substrate. Include a Substrate Blank containing 50 µL Assay Buffer and 50 µL of 100 µM Substrate.
- Read at excitation and emission wavelengths of 400 nm and 505 nm (top read), respectively, in kinetic mode for 5 minutes.
- Calculate specific activity:
Specific Activity (pmol/min/µg) = |
Adjusted Vmax* (RFU/min) x Conversion Factor** (pmol/RFU) |
amount of enzyme (µg) |
*Adjusted for Substrate Blank
**Derived using calibration standard 7-amino, 4-(trifluoromethyl)coumarin (Calbiochem, Catalog #164580).
- rhCaspase-3: 0.02 µg
- Substrate: 50 µM
Background: Caspase-3
Caspase-3 (Cysteine-aspartic acid protease 3/Casp3; also Yama, apopain and CPP32) is a 29 kDa member of the peptidase C14A family of enzymes (1, 2, 3). It is widely expressed and is an integral component of the apoptotic cascade. Caspase-3 is considered to be the major executioner caspase; that is, the primary downstream mediator of apoptotic-associated proteolysis (2, 3, 4). Active Caspase-3 is known to utilize a Cys residue to cleave multiple substrates, including PARP, proIL‑16, PKC-gamma & -δ, procaspases 6, 7 and 9, and beta ‑catenin (1). Human procaspase-3 is a 32 kDa, 277 amino acid (aa) protein (5, 6, 7). Normally, it is an inactive, cytosolic homodimer, but following an upstream signal that activates processing proteases, procaspase-3 undergoes proteolytic cleavage (1, 2, 8, 9). This generates an N-terminal 175 aa p20/20 kDa subunit plus a 102 aa C-terminal p12/12 kDa subunit, followed by further processing of the p20 subunit at Asp28 to generate a final p17 subunit (aa 29‑175) (9). The p17 and p12 subunits noncovalently heterodimerize, and subsequently associate with another p17/p12 heterodimer to form an active antiparallel homodimer. The p17 subunit contains the enzyme active site (aa 161‑165), with an embedded catalytic Cys which is normally nitrosylated and inactive. Full activation requires both proteolytic processing and Cys163 denitrosylation (10). Multiple proteases can use Caspase-3 as a substrate including Caspase-6, -8, and -10, granzyme B, and Caspase-3 itself (9, 11, 12, 13).
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Chowdhury, I. et al. (2008) Comp. Biochem. Physiol. B 151:10.
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Boatright, K.M. & G.S. Salvesen (2003) Curr. Opin. Cell Biol. 15:725.
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Launay, S. et al. (2005) Oncogene 24:5137.
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Walsh, J.G. et al. (2008) Proc. Natl. Scad. Sci. USA 105:12815.
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Nicholson, D.W. et al. (1995) Nature 376:37.
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Tewari, M. et al. (1995) Cell 81:801.
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Fernandes-Alnemri, T. et al. (1994) J. Biol. Chem. 269:30761.
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Milisav, I. et al. (2009) Apoptosis 14:1070.
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Han, Z. et al. (1997) J. Biol. Chem. 272:13432.
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Rossig, L. et al. (1999) J. Biol. Chem. 274:6823.
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Rank, K.B. et al. (2001) Protein Expr. Purif. 22:258.
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Atkinson, E.A. et al. (1998) J. Biol. Chem. 273:21261.
- Cohen, G.M. (1997) Biochem. J. 326:1.
Citations for Recombinant Human Caspase-3 Protein, CF
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
16
Citations: Showing 1 - 10
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Mannose antagonizes GSDME-mediated pyroptosis through AMPK activated by metabolite GlcNAc-6P
Authors: Ai, YL;Wang, WJ;Liu, FJ;Fang, W;Chen, HZ;Wu, LZ;Hong, X;Zhu, Y;Zhang, CX;Liu, LY;Hong, WB;Zhou, B;Chen, QT;Wu, Q;
Cell research
Species: Human
Sample Types: Recombinant Protein
Applications: Bioassay -
Genuine selective caspase-2 inhibition with new irreversible small peptidomimetics
Authors: E Bosc, J Anastasie, F Soualmia, P Coric, JY Kim, LQ Wang, G Lacin, K Zhao, R Patel, E Duplus, P Tixador, AA Sproul, B Brugg, M Reboud-Rav, CM Troy, ML Shelanski, S Bouaziz, M Karin, C El Amri, ED Jacotot
Cell Death & Disease, 2022-11-15;13(11):959.
Species: N/A
Sample Types: Fluorogenic Peptide Substrate
Applications: Bioassay -
The metabolite &alpha-KG induces GSDMC-dependent pyroptosis through death receptor 6-activated caspase-8
Authors: JY Zhang, B Zhou, RY Sun, YL Ai, K Cheng, FN Li, BR Wang, FJ Liu, ZH Jiang, WJ Wang, D Zhou, HZ Chen, Q Wu
Cell Research, 2021-05-19;0(0):.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay -
Autophagy controls the induction and developmental decline of NMDAR-LTD through endocytic recycling
Authors: H Shen, H Zhu, D Panja, Q Gu, Z Li
Nat Commun, 2020-06-12;11(1):2979.
Species: Mouse
Sample Types: Organotypic Tissue Slice
Applications: Bioassay -
Eradication of unresectable liver metastasis through induction of tumour specific energy depletion
Authors: D Huo, J Zhu, G Chen, Q Chen, C Zhang, X Luo, W Jiang, X Jiang, Z Gu, Y Hu
Nat Commun, 2019-07-11;10(1):3051.
Species: Human
Sample Types: Nanoparticles
Applications: Bioassay -
Cilostazol protects hepatocytes against alcohol-induced apoptosis via activation of AMPK pathway
Authors: YJ Lee, MS Shu, JY Kim, YH Kim, KH Sim, WJ Sung, JR Eun
PLoS ONE, 2019-01-29;14(1):e0211415.
Applications: Bioassay -
Tom20 senses iron-activated ROS signaling to promote melanoma cell pyroptosis
Authors: B Zhou, JY Zhang, XS Liu, HZ Chen, YL Ai, K Cheng, RY Sun, D Zhou, J Han, Q Wu
Cell Res., 2018-10-04;0(0):.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay -
Alkyne-based surface-enhanced Raman scattering nanoprobe for ratiometric imaging analysis of caspase 3 in live cells and tissues
Authors: X Qin, M Lyu, Y Si, J Yang, Z Wu, J Li
Anal. Chim. Acta, 2018-09-08;1043(0):115-122.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay -
Active site-targeted covalent irreversible inhibitors of USP7 impair the functions of Foxp3+ T-regulatory cells by promoting ubiquitination of Tip60
Authors: F Wang, L Wang, J Wu, I Sokirniy, P Nguyen, T Bregnard, J Weinstock, M Mattern, I Bezsonova, WW Hancock, S Kumar
PLoS ONE, 2017-12-13;12(12):e0189744.
Species: Human
Sample Types: Recombinant Protein
Applications: Bioassay -
Caspase-3/-7-Specific Metabolic Precursor for Bioorthogonal Tracking of Tumor Apoptosis
Authors: MK Shim, HY Yoon, S Lee, MK Jo, J Park, JH Kim, SY Jeong, IC Kwon, K Kim
Sci Rep, 2017-11-30;7(1):16635.
Species: Human
Sample Types: Recombinant Protein
Applications: Enzyme Assay -
Fluorogenic Substrates for In Situ Monitoring of Caspase-3 Activity in Live Cells
PLoS ONE, 2016-05-11;11(5):e0153209.
Species: Human
Sample Types: Peptide
Applications: Bioassay -
Degradomics reveals that cleavage specificity profiles of caspase-2 and effector caspases are alike.
Authors: Wejda M, Impens F, Takahashi N, Van Damme P, Gevaert K, Vandenabeele P
J Biol Chem, 2012-07-23;287(41):33983-95.
Species: Human
Sample Types: Cell Lysates
Applications: Enzyme Assay -
In vivo and in vitro models for the therapeutic targeting of Wnt signaling using a Tet-ODeltaN89beta-catenin system.
Authors: Jarde T, Evans R, McQuillan K, Parry L, Feng G, Alvares B, Clarke A, Dale T
Oncogene, 2012-04-02;32(7):883-93.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC-P -
Fine-tuning nucleophosmin in macrophage differentiation and activation.
Authors: Guery L, Benikhlef N, Gautier T, Paul C, Jego G, Dufour E, Jacquel A, Cally R, Manoury B, Vanden Berghe T, Vandenabeele P, Droin N, Solary E
Blood, 2011-08-29;118(17):4694-704.
Species: Human
Sample Types: Recombinant Protein
Applications: Enzyme Assay -
Interactions between important regulatory proteins and human alphaB crystallin.
Authors: Ghosh JG, Shenoy AK, Clark JI
Biochemistry, 2007-05-08;46(21):6308-17.
Species: Human
Sample Types: Peptide
Applications: ELISA-Based Protein Pin Array -
Acquired resistance to TRAIL-induced apoptosis in human ovarian cancer cells is conferred by increased turnover of mature caspase-3.
Authors: Lane D, Cote M, Grondin R, Couture MC, Piche A
Mol. Cancer Ther., 2006-03-01;5(3):509-21.
Species: Human
Sample Types: Cell Lysates
Applications: Enzyme Assay
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