A standard chromogenic assay for phosphatidylcholine determination has
been modified in the development of a facile method for measuring the
rate parameters (K-m and V-max) for phosphatidylcholine-preferring ph
ospholipase C from Bacillus cereus (PLC(Bc)). The assay is applied to
the determination of the K-i for a known inhibitor of PLC(Bc). (C) 199
5 Academic Press, Inc.