Recombinant human Stefin B (1-98 aa) purified from E. coli
A549 cell lysate
is derived from hybridization of mouse FO myeloma cells with spleen cells from BALB/c mice immunized with a recombinant human Stefin B protein.
Abcam is committed to meeting high standards of ethical manufacturing and has decided to discontinue this product by June 2019 as it has been generated by the ascites method. We are sorry for any inconvenience this may cause.
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
1/1000 - 1/3000. Detects a band of approximately 14 kDa (predicted molecular weight: 11 kDa).
Use at an assay dependent dilution.
This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B.
Involvement in disease
Defects in CSTB are the cause of progressive myoclonic epilepsy type 1 (EPM1) [MIM:254800]. EPM1 is an autosomal recessive disorder characterized by severe, stimulus-sensitive myoclonus and tonic-clonic seizures. The onset, occurring between 6 and 13 years of age, is characterized by convulsions. Myoclonus begins 1 to 5 years later. The twitchings occur predominantly in the proximal muscles of the extremities and are bilaterally symmetrical, although asynchronous. At first small, they become late in the clinical course so violent that the victim is thrown to the floor. Mental deterioration and eventually dementia develop.
Burgener A et al. A systems biology examination of the human female genital tract shows compartmentalization of immune factor expression. J Virol87:5141-50 (2013).
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