3.1.1.84 37 - half-life: 11 min (wild-type enzyme), 78 min (mutant enzyme T172R), 75 min (mutant enzyme G173Q), 305 min (mutant enzyme T172R/G173Q) 694267 3.1.1.84 37 - the in vitro half-life at 37°C is about 13.7 min 730421 3.1.1.84 37 - the wild type enzyme has a half-life of 12.2 min at 37°C 716281, 716824 3.1.1.84 37 - the wild type enzyme shows 10.8% residual activity after 24 h at 37°C, mutant enzyme L169K/G173Q shows 77.5% residual activity after 24 h at 37°C 716276