Cover figure: Three-dimensional structures of the chemokines IL-8 and MCP-1 created with RasMac using coordinates from: Clore GM, Appella E, Yamada M, Matsushima K, Gronenborn AM: Three-dimensional structure of interleukin-8 in solution. Biochemistry 29:1689, 1990; and Handel TM, Domaille PJ: Heteronuclear (1H, 13C, 15N) NMR assignments and solution structure of the monocyte chemoattractant protein-1 (MCP-1) dimer. Biochemistry 35:6569, 1996. Reproduced with permission from Elsevier Science Ltd (from Rollins BJ: Monocyte chemoattractant protein 1: A potential regulator of monocyte recruitment in inflammatory disease. Molecular Medicine Today, vol 2, p 198, 1996)