[ANIMATIONS][PATH]

NOS REACTION
	The cytoplasm of the sperm contains NOS (Nitric Oxide Synthase) which is activated along with the acrosome reaction by contact with egg jelly [yellow] [NOS turns green here when activated]. Activated NOS produces Nitric Oxide [light green spray]. Upon fusion with the egg, NOS is released into the egg, whereby the NO produced activates Calcium release [red spray]. Calcium activates NOS already present in the egg, releasing more NO, which releases more Calcium, etc. Starting a wave of calcium throughout the egg.
Windows: Right click on animation and choose save to file Macintosh: Hold click on animation and choose save to file	© 2000 Chris Patton, Stanford University

See also ACROSOME REACTION

S.U.E. - CONTENTS