Liquid. 0.2μm-filtered solution in 10mM Tris, pH 7.5, containing 100mM NaCl and 20% glycerol.
Bio-activity
Specific Activity:>100'000U/mg protein with L-tryptophan as substrate (activity assay with catalase). One unit is defined as the amount of enzyme that produces 1nmol of N-formylkynurenine (NFK) per hour.
Molecular Mass
~47kDa (SDS-PAGE)
Protein length
aa 1-403
Endotoxin
<0.1EU/μg purified protein (LAL test; Lonza).
Purity
≥90% (SDS-PAGE)
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