Penaresin, a New Sarcoplasmic Reticulum Ca-Inducer from the Okinawan Marine Sponge Penares Sp.

Penaresin, a New Sarcoplasmic Reticulum Ca-Inducer from the Okinawan Marine Sponge Penares Sp. Penaresidin A and B, two novel azetidine alkaloids with potent actomyosin ATPase-activating activity from the Okinawan marine sponge Penares sp. Penaresidin A and B, two novel azetidine alkaloids with potent actomyosin ATPase-activating activity from the Okinawan marine sponge Penares sp. Bromine-containing alkaloids from the marine sponge Penares sp. Ceratinadins A–C, new bromotyrosine alkaloids from an Okinawan marine sponge Pseudoceratina sp. Penazetidine A, an alkaloid inhibitor of protein kinase C Penasulfate A, a New α-Glucosidase Inhibitor from a Marine Sponge<i> Penares </i>sp. Keramadine, a novel antagonist of serotonergic receptors isolated from the okinawan sea sponge sp. Konbamidin, a New Indole Alkaloid from the Okinawan Marine Sponge Ircinia sp. Nakirodin A, a Bromotyrosine Alkaloid from a Verongid Sponge