Figure 1 - full size

Figure 1.
Figure 1 Ribbon representation of the CPS -heterodimer. The small subunit is displayed in magenta. In the large subunit, the polypeptide-chain regions defined by Met1-Glu403, Val404-Ala553, Asn554-Asn936 and Ser937-Lys1073 are depicted in green, yellow, blue and red, respectively. These regions represent the carboxyphosphate synthetic component, the oligomerization domain, the carbamoyl phosphate synthetic component and the allosteric domain, respectively. The color scheme shown here is maintained throughout the paper. The active-site cysteine in the small subunit (Cys269) and the two ADP molecules in the large subunits are shown in ball-and-stick representations.