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Cover Figure

COVER This week's issue features a Research Article implicating asymmetric changes in inositol 1,4,5-trisphosphate (IP3) and IP3-induced Ca2+ release from the endoplasmic reticulum in growth cone navigation. The image depicts attractive turning of a growth cone toward a chemoattractant substance. [Image: Chris Bickel, AAAS]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882