Recombinant Vibriocholerae Toxin B

SKU: EPT133

Size:10ug

Description:Recombinant Vibriocholerae Toxin B is produced by our E.coli expression system and the target gene encoding Thr22-Asn124 is expressed.

Accession:P01556

Molecular weight:11.8 KDa

Apparent molecular weight:11 KDa, reducing conditions

Other names:Cholera enterotoxin subunit B;Cholera enterotoxin B chain;Cholera enterotoxin gamma chain;Choleragenoid;ctxB;toxB

Storage condition:Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Purity:Greater than 95% as determined by reducing SDS-PAGE.

Endotoxin:Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.

Biological activity:

Redissolve:Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

Storage:Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Delivery condition:The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.

Background:Cholera toxin is protein complex secreted by the bacterium Vibrio cholerae. It is responsible for the massive, watery diarrhea characteristic of cholera infection. Cholera enterotoxin subunit B (CTXB) pentameric ring directs the A subunit to its target by binding to the GM1 gangliosides present on the surface of the intestinal epithelial cells. It can bind five GM1 gangliosides. It has no toxic activity by itself.