<div class='caption-body'><ul class ='image_legend_ul'> Monomeric assembly 1 of PDB entry 4qos coloured by chemically distinct molecules and viewed from the top. This assembly contains:<li class ='image_legend_li'>One copy of Psp operon transcriptional activator</li><li class ='image_legend_li'>One copy of ADENOSINE-5'-DIPHOSPHATE</li><li class ='image_legend_li'>One copy of GLYCEROL</li><li class ='image_legend_li'>One copy of 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID</li></ul></div>