Contents

27 June 2003
Vol 300, Issue 5628

About The Cover

Cover image expansion

COVER Myosin V (green), a cellular motor protein, carries cargo within cells by moving along actin filaments (red). It takes 37-nanometer steps by placing one "foot" over the other, as revealed by a fluorophore tag (rainbow-colored oval). See page 2061. [Illustration: PrecisionGraphics.com]