Size: 200ug. Other sizes are also available. Please Inquire.
In Stock: No
Lead time: 10-20 working days
Research Topic: Others
Uniprot ID: P04977
Gene Names: ptxA
Organism: Bordetella pertussis (strain Tohama I / ATCC BAA-589 / NCTC 13251)
AA Sequence: DDPPATVYRYDSRPPEDVFQNGFTAWGNNDNVLDHLTGRSCQVGSSNSAFVSTSSSRRYTEVYLEHRMQEAVEAERAGRGTGHFIGYIYEVRADNNFYGAASSYFEYVDTYGDNAGRILAGALATYQSEYLAHRRIPPENIRRVTRVYHNGITGETTTTEYSNARYVSQQTRANPNPYTSRRSVASIVGTLVRMAPVIGACMARQAESSEAMAAWSERAGEAMVLVYYESIAYSF
Expression Region: 35-269aa
Sequence Info: Full Length
Source: E.coli
Tag Info: N-terminal 6xHis-tagged
MW: 30.2 kDa
Alternative Name(s): Islet-activating protein S1 ;IAP S1NAD-dependent ADP-ribosyltransferase (EC:2.4.2.-)
Relevance: S1 is an NAD-dependent ADP-ribosyltransferase, which plays a crucial role in the pathogenesis of B.pertussis causing disruption of normal host cellular regulation. It catalyzes the ADP-ribosylation of a cysteine in the alpha subunit of host heterotrimeric G proteins. In the absence of G proteins it also catalyzes the cleavage of NAD+ into ADP-ribose and nicotinamide. It irreversibly uncouples the G-alpha GTP-binding proteins from their mbrane receptors.
Reference: Mutations in the S1 subunit of pertussis toxin that affect secretion.Craig-Mylius K.A., Stenson T.H., Weiss A.A.Infect. Immun. 68:1276-1281(2000)
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.