Skip to Content
MilliporeSigma
All Photos(1)

Documents

C1655

Sigma-Aldrich

Cholera Toxin B subunit

FITC conjugate, lyophilized powder

Synonym(s):

CTB

Sign Into View Organizational & Contract Pricing
All Photos(1)

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

Looking for similar products? Visit Product Comparison Guide

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 5

1 of 5

Shiga Toxin 1, B subunit recombinant, expressed in E. coli, ≥95% (SDS-PAGE)

Sigma-Aldrich

SML0562

Shiga Toxin 1, B subunit

FSL-Fluorescein

Sigma-Aldrich

F1058

FSL-Fluorescein

Phenylarsine oxide ≥97%, powder

Sigma-Aldrich

P3075

Phenylarsine oxide

Poly(ethylene glycol) 2-mercaptoethyl ether acetic acid average Mn 2,100

Sigma-Aldrich

757829

Poly(ethylene glycol) 2-mercaptoethyl ether acetic acid

Filipin complex from Streptomyces filipinensis ≥70% (UV)

Sigma-Aldrich

F9765

Filipin complex from Streptomyces filipinensis

Emily Igel et al.
The Journal of biological chemistry, 297(3), 101106-101106 (2021-08-24)
Polymorphisms in the apolipoprotein E (apoE) gene are risk factors for chronic inflammatory diseases including atherosclerosis. The gene product apoE is synthesized in many cell types and has both lipid transport-dependent and lipid transport-independent functions. Previous studies have shown that
Almut Dufner et al.
Cell communication and signaling : CCS, 9(1), 6-6 (2011-03-15)
The B cell antigen receptor (BCR) and pathogen recognition receptors, such as Toll-like receptor 4 (TLR4), act in concert to control adaptive B cell responses. However, little is known about the signaling pathways that integrate BCR activation with intrinsic TLR4
Birgit Bauer et al.
FEBS letters, 541(1-3), 155-162 (2003-04-23)
Protein kinase (PK) Ctheta and Akt/PKBalpha cooperate in T cell receptor/CD28-induced T cell signaling. We here demonstrate the recruitment of endogenous Akt1 and PKCtheta to lipid rafts in CD3-stimulated T cells. Further we show that Myr-PKCtheta mediates translocation of endogenous
Laura Aragoneses-Fenoll et al.
Journal of leukocyte biology (2021-02-03)
The interaction between the T-lymphocyte costimulatory molecule ICOS and its ligand (ICOS-L) is needed for efficient immune responses, but expression levels are tightly controlled, as altered expression of ICOS or ICOS-L may lead to immunodeficiency, or favor autoimmune diseases and
Jill M Steinbach et al.
Acta biomaterialia, 30, 49-61 (2015-11-26)
The surface modification of nanoparticles (NPs) can enhance the intracellular delivery of drugs, proteins, and genetic agents. Here we studied the effect of different surface ligands, including cell penetrating peptides (CPPs), on the cell binding and internalization of poly(lactic-co-glycolic) (PLGA)
View All Related Papers

Related Content

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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service