A glycoprotein hormone bound to its receptor (PDB id: 4ay9).   Specific components: alpha subnit of hormone beta subnit of hormone extracellular hormone-binding domain of the receptor   Even displays on mobile devices! Drag the structure with your mouse or using your touch device. Click here for an even larger, isolated interface on which to take the structure for a spin. Structure solved by Jiang et al. (PDB id: 4ay9). Interactive image courtesy of Wayne Decatur.