4.1.2.48 6.5 - - 691447, 728649 4.1.2.48 6.5 - assay at 691804 4.1.2.48 7 8 recombinant enzyme 681356 4.1.2.48 8 - assay at 441433, 5205, 5206, 691804, 716291 4.1.2.48 8 8.5 - 441433 4.1.2.48 8.5 - assay at 5195 4.1.2.48 8.5 - substrate: L-threonine, Tris-chloride buffer 5198 4.1.2.48 8.5 9 - 5206 4.1.2.48 8.5 9 aldehyde formation from L-allo-threonine 5205 4.1.2.48 10 - substrate: L-allo-threonine, Tris-chloride buffer 5198