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C1655

Sigma-Aldrich

Cholera Toxin B subunit

FITC conjugate, lyophilized powder

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Synonym(s):
CTB
MDL number:
PubChem Substance ID:

conjugate

FITC conjugate

Quality Level

form

lyophilized powder

mol wt

~12 kDa

composition

Protein, ~20% Lowry

extent of labeling

~1.0 mol FITC per mol protein

storage temp.

2-8°C

SMILES string

CCOc1ccccc1C(=O)Nc2ccc(Cl)c(c2)C(F)(F)F

InChI

1S/C16H13ClF3NO2/c1-2-23-14-6-4-3-5-11(14)15(22)21-10-7-8-13(17)12(9-10)16(18,19)20/h3-9H,2H2,1H3,(H,21,22)

InChI key

YDXZSNHARVUYNM-UHFFFAOYSA-N

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1 of 4

This Item
C3741C167C8180
vibrant-m

C1655

Cholera Toxin B subunit

vibrant-m

C3741

Cholera Toxin B subunit

vibrant-m

C167

Cholera Toxin B subunit

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

mol wt

~12 kDa

mol wt

pentamer 57 kDa, ~12 kDa

mol wt

~12 kDa

mol wt

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

conjugate

FITC conjugate

conjugate

peroxidase conjugate (Contains ~ 2 moles HRP/mole of CTB. ~100 μg HRP conjugated to ~45 μg CTB)

conjugate

-

conjugate

-

composition

Protein, ~20% Lowry

composition

-

composition

-

composition

Protein, ~5% Lowry

Application

Cholera Toxin B subunit-fluorescein isothiocyanate (FITC) conjugate has been used as a fluorescent tracer:
  • to label distal cerebrospinal fluid-contacting neurons (dCSF-CNs) in lateral ventricles of rat
  • to stain epididymal sperms of mice
  • to stain peritoneal macrophages of mice

Biochem/physiol Actions

The cholera toxin B subunit is used for track tracing in neurological research, taking advantage of GM1 ganglioside binding and retrograde transport. Tissue culture cells treated with cholera toxin are not killed and tissues of animals do not become necrotic.

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.

Physical form

Lyophilized powder containing Tris buffer salts, sodium chloride, sodium EDTA and sodium azide

Analysis Note

Activity measured by ELISA using ganglioside GM1 coated multiwell plates, rabbit anti-cholera toxin B subunit antibodies, and peroxidase-labeled goat anti-rabbit IgG as the second antibody. 50% saturation of binding was achieved with 0.01-1 μg of the cholera toxin B subunit-FITC conjugate per mL.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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