catalog number :
MBS623626
products full name :
Bacillus anthracis PA, Protective Antigen (Anthrax)
products short name :
Bacillus anthracis PA, Protective Antigen
products name syn :
Anti -Bacillus anthracis PA, Protective Antigen (Anthrax)
other names :
Bacillus anthracis protective antigen
specificity :
Recognizes bothPA63 and PA83 of B. anthracis Lethal Factor. No cross-reactivity with Lethal Factor (LF) of Bacillus anthracis, Y. Pestis, F. Tularensis and Toxoplasma gondi.
purity :
Grade: Purified. Purified
form :
Supplied as a liquid in PBS, pH 7.4, 0.09% sodium azide.
storage stability :
May be stored at 4 degree C for short term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degree C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
tested application :
ELISA (EL/EIA), Western Blot (WB). Other applications have not tested.
app notes :
Suitable for use in ELISA and Western Blot. Dilution: Western Blot (ECL): 1-10ug/ml. ELISA: 0.1-1ug/ml. Optimal dilutions to be determined by the researcher.
other info1 :
Immunogen: Recombinant corresponding to purified Bacillus anthracis Protective Antigen (PA83).
products categories :
Antibodies; Abs to Infectious Disease Anthrax
products description :
After inhalation by mammals, Bacillus anthracis spores germinate in alveolar macrophages then migrate to lymph nodes where they multiply. The vegetative bacteria excrete the tripartite exotoxin which consists of three polypeptides: protective antigen (PA, 83kD), lethal factor (LF, 90kD) and oedma factor (OF, 89kD). The two components (OF and LF) of the toxin enzymatically modify substrates within the cytosol of the mammalian cells: The OF is an adenylate cyclase that impairs the host defenses through a variety of mechanisms inhibiting phagocytosis. The LF is a zinc dependent protease that cleaves several mitogen activated protein kinase kinases (MAPKK) and causes lysis of macrophages. To intoxicate mammalian cells, the third component of the toxin PA, binds to a ubiquitously expressed cellular receptor, Tumor Endothelium Marker-8 (TEM8). Upon binding to TEM8, PA is cleaved into 20 and 63kD fragments (PA20 and PA63) by furin or furin-like proteases. PA20 dissociates into medium and allows the PA63 fragment to heptamerize and bind LF and OF of the toxin. The resulting complex of PA63 fragment with EF and/or OF binds to PA-receptor TEM8/ATR and internalized into endosomes followed by translocation of LF and OF into cytosol of the cells.
ncbi pathways :
Focal Adhesion Pathway (83067); Focal Adhesion Pathway (478); MAPK Signaling Pathway (83048); MAPK Signaling Pathway (456); Salmonella Infection Pathway (375172); Salmonella Infection Pathway (375149)