Key result
PGHS-2 exhibits a much faster transition between Intermediates I and II compared to PGHS-1, contributing to differences in the regulation of their cellular activities.
Population
Prostaglandin H synthase isoforms 1 and 2 (PGHS-1 and -2)
Comparison
Stopped flow spectrophotometry with several… vs Comparison between PGHS-1 and PGHS-2
Design
Preclinical
Authors
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Kinetic distinctions may guide isoform-selective targeting; leaves open validation in human cardiovascular models.
Kinetic differences between PGHS-1 and PGHS-2 in forming or stabilizing the active cyclooxygenase species contribute to the distinct regulation of their cellular activities.
Lu et al. (1999) studied this question. Prostaglandin H synthase isoforms 1 and 2 was evaluated on Kinetics of the initial peroxidase steps (formation of Intermediate I and II). PGHS-2 exhibits a much faster transition between Intermediates I and II compared to PGHS-1, contributing to differences in the regulation of their cellular activities.
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