the other cell lines , however , maintained the expression of the regan isoenzyme when grown as a xenograft : the c41 line produced the regan isoenzyme in culture , and continued to do so in vivo , while the bewo cells , which synthesized the chorionic enzyme in culture were induced by in vivo growth to produce both the regan and chorionic isoenzymes .
C0014442
enzyme
C0022173
isoenzymes