Navigation Links
Mast Cell Degranulation colorimetric Assay Kit from CHEMICON

ProductsMast Cell Degranulation colorimetric Assay Kit from CHEMICON
Item Mast Cell Degranulation colorimetric Assay Kit
Price $375.00
Description Degranulation, the secretion of cytoplasmic granules, is a key step in the inflammatory response of leukocytes (e.g. basophils, neutrophils, eosinophils, and mast cells). In addition to histamine, these secretory granules contain many proinflammatory mediators including heparin, cytokines, chemokines, and many proteases (Hallgren, 2001). Tryptase, a tetrameric serine proteinase, has emerged as the major component of mast cell granules, comprising up to 20% of the total protein of mast cells derived from lung, colon and skin tissue (He, 2004; He, 1998; Schwartz, 1986). Because it is stored almost exclusively in mast cells, tryptase is a popular indicator of mast cell activation and a target for therapeutic intervention in allergic diseases. The Chemicon Mast Cell Degranulation Assay Kit provides a quick, efficient and sensitive system for evaluation of tryptase activity in cell lysates, supernatants or for inhibitor screening.

Test Principle

Chemicons Mast Cell Degranulation Assay Kit provides a simple and convenient means for assaying tryptase activity. The assay is based on spectophotometric detection of the chromophore p-nitroaniline (pNA) after cleavage from the labeled substrate tosyl-gly-pro-lys-pNA. The free pNA can then be quantified using a spectrophotometer or a microtiter plate reader at 405 nm. A pNA Standard is provided as a comparison control.

Calcium Ionophore A23187 (Calcimycin) is included in the kit for degranulation induction of samples. Calcimycin has been a well-documented inducer of tryptase release from human mast cells (2,3).

A tryptase inhibitor, protamine, is included as a test inhibitor for screening purposes. Protamine is a potent heparin antagonist that competitively binds heparin, an essential stabilizing factor of mast cell tryptase (Hallgren, 2001; Schwartz, 1986). Protamine has been shown to inhibit both human and mouse tryptase (Hallgren, 2001). The kits Assay Buffer contains heparin for tryptase stabilization.

CHEMICON International, Inc.
28820 Single Oak Drive
Temecula, CA 92590
Customer Service: 800-437-7500
Tech Support: 800-437-7500
Fax Number: 800-437-7502
Web Site:
NOTE: Price information is approximate list price and actual prices may vary.

Related biology products :

1. XpressPack™ Colorimetric Amplification Detection System, required for colorimetric XpressPack™ from CHEMICON
2. Glutathione-S-Transferase (GST) Colorimetric Assay Kit from Sigma-Aldrich
3. In Vitro Osteogenesis Assay Kit from CHEMICON
4. PR Competitor Assay Green from Invitrogen
5. PolarScreen Androgen Receptor Competitor Assay Kit, Red from Molecular Probes (Invitrogen)
6. Hydrogen Peroxide / Peroxidase Fluorometric (resorufin) Assay Kit, Fluoro H2O2 from BACHEM
7. PPARGamma-Competitor Assay Kit Green from Invitrogen
8. Total antioxidant capacity Colorimetric Assay Kit from Neogen Corporation
9. PolarScreen Progesterone Receptor Competitor Assay Kit, Far Red from Molecular Probes (Invitrogen)
10. Total Antioxidant Power Colorimetric Assay Kit from Neogen Corporation
11. NDPase (GDPase, UDPase, ADPase) Assay Kit from Sigma-Aldrich
Rab GDP dissociation inhibitor beta...
... has a long and outstanding history ... Several years ago we became aware ... was being modified to inject Xenopus ... redesigning the microdispenser to eliminate any ...
Coating : Poly-D-Lysine ,Surface : ECM/attachment factors ,Surface area : 9.6 cm2 ,Dim nominal : 35 mm x 10 mm ,Vol working : 2.5-3.0 ml ...
Rabbit polyclonal to Synapsin II ( Abpromise for all tested applications). entrezGeneID: 6854 SwissProtID: Q92777...
Biology Products:
(Date:11/9/2015)... 2015 ... "Global Law Enforcement Biometrics Market 2015-2019" ... ) has announced the addition ... Market 2015-2019" report to their offering. ... ) has announced the addition of ...
(Date:11/2/2015)... Calif. , Nov. 2, 2015  SRI International ... million to provide preclinical development services to the National ... contract, SRI will provide scientific expertise, modern testing and ... variety of preclinical pharmacology and toxicology studies to evaluate ... --> The PREVENT Cancer Drug Development Program ...
(Date:10/29/2015)... 2015 Daon, a global leader in mobile ... a new version of its IdentityX Platform , ... America have already installed IdentityX v4.0 and ... FIDO UAF certified server component as an ... FIDO features. These customers include some of the largest ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... , November 25, 2015 ... Report is a professional and in-depth study on ...      (Logo: ) , ... the industry including definitions, classifications, applications and industry ... for the international markets including development trends, competitive ...
(Date:11/24/2015)... , Nov. 24, 2015 Halozyme Therapeutics, Inc. (NASDAQ: ... in New York on Wednesday, December 2 ... Torley , president and CEO, will provide a corporate overview. ... York at 1:00 p.m. ET/10:00 a.m. PT . ... relations, will provide a corporate overview. --> th ...
(Date:11/24/2015)... -- Clintrax Global, Inc., a worldwide provider of clinical research services headquartered ... the company has set a new quarterly earnings record in Q3 ... posted for Q3 of 2014 to Q3 of 2015.   ... , with the establishment of an Asia-Pacific ... United Kingdom and Mexico , with ...
(Date:11/24/2015)... 2015 --> ... released by Transparency Market Research, the global non-invasive prenatal ... of 17.5% during the period between 2014 and 2022. ... Industry Analysis, Size, Volume, Share, Growth, Trends and Forecast ... market to reach a valuation of US$2.38 bn by ...
Breaking Biology Technology: