Recombinant Human Brain-Specific Serine Protease 4/BSSP-4 produced by transfected human cells is a secreted protein with sequence(Ala33-Ser317) of Human BSSP-4 Tryptase fused with a polyhistidine tag at the C-terminus.
Reinheit
> 95 % as determined by reducing SDS-PAGE.
Sterilität
0.2 μm filtered
Endotoxin-Niveau
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
Crystallography grade
PRSS22
Spezies: Human
Wirt: Insektenzellen
Recombinant
>95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
SDS, ELISA, WB, Crys
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Buffer
Supplied as a 0.2 μm filtered solution of 20 mM HAc-NaAc, 150 mM NaCl, 10 % Glycerol, pH 4.5.
Handhabung
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
Lagerung
-80 °C
Informationen zur Lagerung
Store at < -20°C, stable for 6 months after receipt. Please minimize freeze-thaw cycles.
Brain-Specific Serine Protease 4 (BSSP-4) is a serine protease that preferentially cleaves the synthetic substrate H-D-Leu-Thr-Arg-pNA compared to tosyl-Gly-Pro-Arg-pNA. BSSP-4 is expressed abundantly in the epithelial cells of the airways, including trachea, esophagus and fetal lung, but scarce in adult lung and expressed at low levels in placenta, pancreas, prostate and thyroid gland. BSSP-4 belongs to the peptidase S1 family and related to trypsin, referentially hydrolyzing substrates after arginine and lysine residues. However, BSSP-4 is less susceptible to inhibition by common trypsin inhibitors such as aprotinin, alpha1-antitrypsin and secretory leukocyte protease inhibitor. BSSP-4 efficiently converts pro-urokinase- type plasminogen activator to its mature, active form. Alternative Names: Brain-Specific Serine Protease 4, BSSP-4, Serine Protease 22, Serine Protease 26, Tryptase Epsilon, PRSS22, BSSP4, PRSS26