Pedro replied to my short note:
> Unless the ten-fold increase in DHAP was enough to push the system into
> a different basin of attraction... There are many examples of in vitro and
> vivo systems in which this can happen (I'm thinking of e.g. peroxidase and
> glucose-6-phosphate dehydrogenase, see refs below). So it is a hypothesis
> that we cannot exclude a priori.
and of course Pedro is quite correct.
Jannie Hofmeyr InterNet e-mail: jhsh at maties.sun.ac.za
Dept. of Biochemistry Telephone: +27 21 8083039
University of Stellenbosch Fax: +27 21 8083022