MOLECULAR PHARMACOLOGY May 2004 Volume 65 Number 5 http://molpharm.aspetjournals.org ISSN 0026-895X MINIREVIEW Regulation of Uterine Function: a Biochemical Conundrum in the Regulation of Smooth Muscle Relaxation Iain L. O. Buxton 1051 PERSPECTIVE Agonist Binding: A Multistep Process M Brian Kobilka 1060 ARTICLES Justicidin A Inhibits the Transport of Tumor Necrosis Factor -a to Cell Surface in LipopolysaccharideStimulated RAW 264.7 Macrophages Lo-Ti Tsao, Chun-Nan Lin, and Jih-Pyang Wang 1063 Tumor Cell Responses to a Novel Glutathione S-Transferase-Activated Nitric Oxide-Releasing Prodrug Victoria J. Findlay, Danyelle M. Townsend, Joseph E. Saavedra, Gregory S. Buzard, Michael L. Citro, Larry K. Keefer, Xinhua Ji, and Kenneth D. Tew 1070 Elevated Racl Activity Changes the M 3 Muscarinic Acetylcholine Receptor-Mediated Inhibition of Proliferation to Induction of Cell Death Shulamith H. Shafer and Carol L. Williams 1080 Nuclear Factor-«B Mediates Up-Regulation of Cathepsin B by Doxorubicin in Tumor Cells Sandra Bien, Christoph A. Ritter, Matthias Gratz, Bernhard Sperker, Ju'rgen Sonnemann, James F. Beck, and Heyo K. Kroemer 1092 Regulation of mGlu4 Metabotropic Glutamate Receptor Signaling by Type-2 G-Protein Coupled Receptor Kinase (GRK2) L. Iacovelli, L. Capobianco, M. Iula, V. Di Giorgi Gerevini, A. Picascia, J. Blahos, D. Melchiorri, F. Nicoletti, and A. De Blasi 1103 Inhibition of cGMP-Dependent Protein Kinase by the Cell-Permeable Peptide DT-2 Reveals a Novel Mechanism of Vasoregulation Mark S. Taylor, Chris Okwuchukwuasanya, Christian K. Nickl, Werner Tegge, Joseph E. Brayden, and Wolfgang R. G. Dostmann 1111 Molecular Determinants for High-Affinity Block of Human EAG Potassium Channels by Antiarrhythmic Agents Guido Gessner, Martin Zacharias, Susanne Bechstedt, Roland Schbnherr, and Stefan H. Heinemann 1120 Nitric Oxide Inhibits Matrix Metalloproteinase-2 Expression via the Induction of Activating Transcription Factor 3 in Endothelial Cells Hsuan-Hsu Chen and Danny Ling Wang 1130 The Role of Glycine Residues in the Function of Human Organic Anion Transporter 4 Fanfan Zhou, Kunihiko Tanaka, Zui Pan, Jianjie Ma, and Guofeng You 1141 Cloning, Expression, and Characterization of Three New Mouse Cytochrome P450 Enzymes and Partial Characterization of Their Fatty Acid Oxidation Activities Hong Wang, Yun Zhao, J. Alyce Bradbury, Joan P. Graves, Julie Foley, Joyce A. Blaisdell, Joyce A. Goldstein, and Darryl C. Zeldin 1148 Activators of the Rat Pregnane X Receptor Differentially Modulate Hepatic and Intestinal G ene Expression Dylan P. Hartley, Xudong Dai, Yudong D. He, Edward J. Carlini, Bonnie Wang, Su-er W. Huskey, Roger G. Ulrich, Thomas H. Rushmore, Raymond Evers, and David C. Evans 1159 Isoflurane Preconditioning Induces Neuroprotection against Ischemia via Activation of P38 MitogenActivated Protein Kinases Shuqiu Zheng and Zhiyi Zuo 1172 Synergistic Contributions of the Functional Groups of Epinephrine to Its Affinity and Efficacy at the /32 Adrenergic Receptor George Liapakis, Wai Chi Chan, Maria Papadokostaki, and Jonathan A. Javitch 1181 Selective Antagonism of 5a-Reduced Neurosteroid Effects at GABA A Receptors Steven Mennerick, Yejun He, Xin Jiang, Brad D. Manion, Mingde Wang, Amanda Shute, Ann Benz, Alex S. Evers, Douglas F. Covey, and Charles F. Zorumski 1191 The Nucleotide-Binding Domains of Sulfonylurea Receptor 2A and 2B Play Different Functional Roles in Nicorandil-Induced Activation of ATP-Sensitive K + Channels Mitsuhiko Yamada and Yoshihisa Karachi 1198 Flavonoids Are Inhibitors of Breast Cancer Resistance Protein (ABCG2)-Mediated Transport Shuzhong Zhang, Xinning Yang, and Marilyn E. Morris 1208 Down-Regulation and Altered Localization of y-Catenin in Cisplatin-Resistant Adenocarcinoma Cells Xing-Jie Liang, Ding-Wu Shen, and Michael M. Gottesman 1217 Oral Exposure to Benzo[a]pyrene in the Mouse: Detoxication by Inducible Cytochrome P450 Is More Important Than Metabolic Activation Shigeyuki Uno, Timothy P. Dalian, Sandrine Derkenne, Christine P. Curran, Marian L. Miller, Howard G. Shertzer, and Daniel W. Nebert 1225 NAD(P)H:Quinone Oxidoreductase 1: Role as a Superoxide Scavenger David Siegel, Daniel L. Gustafson, Donna L. Dehn, Jin Yi Han, Preecha Boonchoong, Lawrence J. Berliner, and David Ross 1238 Different Structural States of the Proteolipid Membrane Are Produced by Ligand Binding to the Human S-Opioid Receptor as Shown by Plasmon-Waveguide Resonance Spectroscopy Isabel D, Alves, Scott M. Cornell, Zdzislaw Salamon, Savitha Devanathan, Gordon Tollin, and Victor J. Hruby Functional Regulation of the Cardiac Ryanodine Receptor by Suramin and Calmodulin Involves Multiple Binding Sites Adam Parker Hill, Olivia Kingston, and Rebecca Sitsapesan Ca^l.3 Is Preferentially Coupled to Glucose-Induced [Ca 2+li Oscillations in the Pancreatic j3 Cell Line INS-1 Guohong Liu, Nathan Milliard, and Gregory H. Hockerman 1269 Activation of the Anticancer Prodrugs Cyclophosphamide and Ifosfamide: Identification of Cytochrome P450 2B Enzymes and Site-Specific Mutants with Improved Enzyme Kinetics Ckong-Sheng Chen, Jack T. Lin, Kendrick A. Goss, You-ai He, James R. Halpert, and David J. Waxman 1278 Acetylation of Nuclear Factor-KB in Rat Amygdala Improves Long-Term but not Short-Term Retention of Fear Memory Shiu-Hwa Yeh, Chia-Ho Lin, and Po-Wu Gean 1286 Regulations of Methamphetamine Reward by Extracellular Signal-Regulated Kinase 1/2/ets-Like Gene-1 Signaling Pathway via the Activation of Dopamine Receptors Hiroyuki Mizoguchi, Kiyofumi Yamada, Makoto Mizuno, Tomoko Mizuno, Atsumi Nitta, Yukihiro Noda, and Toshitaka Nabeshima 1293 Induction of CYP3A by 2,3-Oxidosqualene:Lanosterol Cyclase Inhibitors Is Mediated by an Endogenous Squalene Metabolite in Primary Cultured Rat Hepatocytes Sarita D. Shenoy, Thomas A. Spencer, Nancy A. Mercer-Haines, Masumeh Abdolalipour, William L. Wurster, Melissa Runge-Morris, and Thomas A. Kocarek 1302 Epinephrine Activates Both G s and Gj Pathways, but Norepinephrine Activates Only the G s Pathway through Human j3 2-Adrenoceptors Overexpressed in Mouse Heart Jiirgen F. Heubach, Ursula Ravens, and Alberto J. Kaumann 1313