1.1.3.40 additional information - alkaline pH-optimum 287629 1.1.3.40 additional information - pI: 5.4-5.6 287629 1.1.3.40 7.4 - assay at 287632 1.1.3.40 8 - assay at 287631 1.1.3.40 8 8.5 alkaline pH-optimum 287629