Size: 200ug. Other sizes are also available. Please Inquire.
In Stock: No
Lead time: 10-20 working days
Research Topic: Microbiology
Uniprot ID: P01556
Gene Names: ctxB
Organism: Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)
AA Sequence: TPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN
Expression Region: 22-124aa
Sequence Info: Full Length of Mature Protein
Source: E.coli
Tag Info: N-terminal 6xHis-tagged
MW: 15.6 kDa
Alternative Name(s): Cholera enterotoxin B chain Cholera enterotoxin gamma chain Choleragenoid
Relevance: The B subunit 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.
Reference: "Nucleotide sequence analysis of the A2 and B subunits of Vibrio cholerae enterotoxin." Lockman H., Kaper J.B. J. Biol. Chem. 258:13722-13726(1983)
Purity: Greater than 90% as determined by SDS-PAGE.
Storage Buffer: Tris-based buffer，50% glycerol
Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.
Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.