C4102
Clostridium difficile Toxin B
lyophilized powder
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About This Item
MDL number:
UNSPSC Code:
12352200
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form
lyophilized powder
mol wt
~300 kDa
storage temp.
2-8°C
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Biochem/physiol Actions
Clostridium difficile Toxin A and B, cation-dependent UDP-glucose glucosyltransferases, are cellular toxins that inactivate Rho (and Rho family small GTPases) through monoglucosylation of these family members. Effects of this monoglucosylation include disregulation of the actin cytoskeleton, cell rounding, cytotoxicity, and altered cellular signaling. Rho proteins are monoglucosylated by Toxin A and B using UDP-glucose as a cosubstrate. Rho, Rac and Cdc42 are included in the Rho subfamilies targeted by both toxins. Low molecular mass GTP-binding proteins that are not modified by Toxin A and B include Ras, Rab, Arf, or Ran subfamilies as well as heterotrimeric G proteins.
Inactivates Rho (and Rho family small GTPases). Causes disregulation of the actin cytoskeleton, cell rounding, cytotoxicity, and altered cellular signaling.
Toxin B is 100-1,000-fold more cytotoxic than toxin A in inducing rounding-up of cells and destruction of the actin cytoskeleton.
Features and Benefits
This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the GTP Binding Proteins (Low Molecular Weight) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
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Danger
hcodes
Hazard Classifications
Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 1 Oral
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk_germany
WGK 3
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Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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