Test
Calculin A
NC1310068 TETANUS TOXOID 100 MICROGRAMS
Synonym: CTX, Cholera enterotoxin, Cholergen, ~95% (SDS-PAGE), lyophilized powder. Cholera Toxin from Vibrio cholerae has been used as a positive control in cAMP (cyclic AMP) assay for enterotoxins. It has been added as a supplement in cell culture media of primary tumors and epithelial cells.
**Item is regulated in the country of origin so an End User Declaration form will be provided via email, upon receipt of the order. Form is required to be completed and returned by the end user. The lead time will be apprx. 8-10 weeks upon receipt of the completed form. Please ensure email address is available on account.
Purified botulinum toxin from Clostridium botulinum, purified from culture via dialysis and acid precipitation.
Tetrodotoxin (TTX) reversibly blocks excitable sodium channels and has been a widely used tool for studies of excitable membranes of nerve, skeletal muscle and cardiac muscle cells. Biotium offers high quality tetrodotoxin with or without citrate, at a competitive price. Tetrodotoxin, citrate-free can be dissolved in slightly acidic buffer. Tetrodotoxin, with citrate can be dissolved in water to obtain TTX in pH 4.8 citrate buffer.Properties: C11H17N3O8; MW: 319.28; [4368-28-9]
G protein activator. Formulation: Lyophilized from 0.05M Tris, pH 7.5, containing 200 mM NaCl, and 1 mM Na2 EDTA. Source: From Vibrio cholerae. UniProt: P01555 (A subunit), P01556 (B subunit). Handling: Handle gently and do not vortex. Store at +4°C prior to and following reconstitution. Do not freeze. Long Term Storage: +4°C
NC0333616 STAPHYLOCOCCAL ENTEROTOXIN 1MG
SEB; Highly Purified; 1mg; Intended for laboratory and research purposes only; Not intended for human or veterinary drug use
Since 1978, List Labs products are unsurpassed in quality, consistency, and reliability for the success of your research and development project! Cross reacting material (CRM197) is a nontoxic variant of diphtheria toxin with a single mutation (resulting in a Glycine to Glutamate substitution at postion 52). CRM functions as a carrier protein for polysaccharides and haptens making them immunogenic. CRM is widely used in polysaccharde conjugate vaccines. CRM197 has the advantage of being a well defined protein in contrast to formaldehyde treated toxin (toxoid) which is non-specifically cross linked and subject to rearrangement and loss of epitopes. List Labs CRM197 is purified from the native mutant strain maintaining structural and immunological integrity.
Since 1978, List Labs products are unsurpassed in quality, consistency, and reliability for the success of your research and development project! Tetanus toxin is a potent neurotoxin (150,000 Da) produced by the anaerobic bacterium Clostridium tetani. Intact toxin derived from culture supernatants consists of two polypeptide chains connected through an interchain disulfide bond. List Labs offers the native tetanus toxin produced from Clostridium tetani. Tetanus toxoid is prepared by formaldehyde inactivation of pure neurotoxin. Each lot is verified to be non-toxic. In addition to being a potent antigen, tetanus toxoid is a useful carrier protein for making polysaccharides and haptens immunogenic.
NC0278290 SEE HIGHLY PURIFIED STA 100UG
Since 1978, List Labs products are unsurpassed in quality, consistency, and reliability for the success of your research and development project! Cholera toxin is an oligomeric protein of 84 kDa size, consisting of a single A subunit surrounded by five B subunits. It is a potent activator of adenylate cyclase and is the pathogenic agent responsible for the symptoms of cholera. Cholera toxin has become a powerful research tool not only in microbiology, but in the fields of physiology, cell biology and biochemistry, as well. Because of the effect on adenylate cyclase, cholera toxin is frequently used for the study of signal transduction mechanisms. The cholera toxin B subunit alone is used for track tracing in neurological research, taking advantage of GM1 ganglioside binding and retrograde transport. Cholera toxin B subunit is isolated from Vibrio cholerae type Inaba 569B and purified from endotoxin.
Microcystins/Nodularins AH
NC0913480 SEA - 100UG
Since 1978, List Labs products are unsurpassed in quality, consistency, and reliability for the success of your research and development project! Cholera toxin is an oligomeric protein of MW 84,000 daltons which consists of a single A subunit surrounded by five B subunits. It is a potent activator of adenylate cyclase and is the pathogenic agent responsible for the symptoms of cholera. Cholera toxin has become a powerful research tool not only in microbiology, but in the fields of physiology, cell biology and biochemistry, as well. Because of the effect on adenylate cyclase, cholera toxin is frequently used for the study of signal transduction mechanisms. In addition, cholera toxin acts as an adjuvant through the stimulation of B-lymphocytes. Cholera toxin is isolated from Vibrio cholerae type Inaba 569B and purified from endotoxin.