516560

Pertussis Toxin, Bordetella pertussis

This Pertussis toxin, CAS 70323-44-3, catalyzes ADP-ribosylation of guanine nucleotide-binding regulatory proteins Gi, Go, and Gt.

• Synonym(s): Pertussis Toxin, Bordetella pertussis
• CAS Number: 70323-44-3
• MDL number: MFCD00131841
• UNSPSC Code: 12352200

Properties

• Quality Level: 100
• form: lyophilized
• manufacturer/tradename: Calbiochem^®
• storage condition: do not freeze
• foreign activity: adenylate cyclase ≤35 pmol/min-μg (in the presence of calmodulin)
• shipped in: ambient
• storage temp.: 2-8°C

Description

General description

Pertussis toxin (PT), secreted protein exotoxin and virulence factor by Bordetella pertussis, is the causative agent of whooping cough. It is transported across the bacterial outer membrane through a type IV secretion system encoded by the ptl genes, situated downstream from the ptx genes that encode the toxin. This complex multisubunit toxin with an AB5 configuration, serves as a crucial component of acellular pertussis vaccines. It can function protectively as a single-component toxoid vaccine. Moreover, it is widely used in mammalian cell signaling studies due to its inhibitory effect on G-protein-coupled receptor pathways. It inhibits neutrophil recruitment and airway influx, a common inflammatory response to bacterial infection.

Application

Pertussis Toxin, Bordetella pertussis has been used as a Gi protein inhibitor to study its ability to reduce the depolarizing responses of hypothalamic pro-opiomelanocortin (POMC) neurons. It has also been used in pertussis toxin experiments to block Gαi for an in vivo inner ear and an in vitro outer hair cell (HC) study.

Biochem/physiol Actions

Primary Target
Guanine nucleotide-binding regulatory proteins Gi, Go, and Gt

Product does not compete with ATP.

Warning

Toxicity: Toxic (F)

Physical form

Lyophilized from 50 mM NaCl, 10 mM sodium phosphate buffer, pH 7.0.

Reconstitution

Following reconstitution, refrigerate (4°C). For long-term storage in solution, reconstitute with a high ionic strength buffer, such as 100 mM sodium phosphate, 500 mM sodium chloride, pH 7.0. Stock solutions are stable for at least 6 months for use in CHO cell assays and for 1-2 months for use in non-cellular systems.

Reconstitute with 500 µl H₂O. Obtain a uniform suspension before each use by scraping the walls of the tube and gently pipetting the solution to mix.

Analysis Note

Five distinct bands by SDS-PAGE

Other Notes

Due to the nature of the Hazardous Materials in this shipment, additional shipping charges may be applied to your order. Certain sizes may be exempt from the additional hazardous materials shipping charges. Please contact your local sales office for more information regarding these charges.

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Hausman, S.Z., and Burns, D.L. 1992. J. Biol. Chem.267, 13735.
Kaslow, H.R., and Burns, D.L., 1992. FASEB J.6, 2684.
Zhu, J., et al. 1992. J. Pharmacol. Exp. Therap.263, 1479.
Hewlett, E.L., et al. 1983. Infect. Immun.40, 1198.
Moss, J., et al. 1983. J. Biol. Chem.258, 11879.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable