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Merck
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Key Documents

C1655

Sigma-Aldrich

Cholera Toxin B subunit

FITC conjugate, lyophilized powder

Sinónimos:

CTB

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About This Item

MDL number:
MFCD02356522
UNSPSC Code:
12352200
PubChem Substance ID:
329774902

conjugate

FITC conjugate

Quality Level

200

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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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
GHS07

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

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Discover Bioactive Small Molecules for Cyclic Nucleotides

Cyclic nucleotides, including cyclic AMP (cAMP), cyclic GMP (cGMP) and cyclic ADP-ribose, have been extensively studied as second messengers of intracellular events initiated by activation of GPCRs. cAMP modifies cell function in all eukaryotic cells, principally through the activation of cAMP-dependent protein kinase (PKA), but also through cAMP-gated ion channels and guanine nucleotide exchange factors directly activated by cAMP.

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