Figure 1 - full size

Figure 1. Fig. 1. Ribbon diagrams of the trimeric HsPII (A) and monomeric HsPII, EcPII, EcPII-ATP, EcGlnK and EcGlnK-ATP (B). (A) A ribbon diagram of the structure of the trimeric HsPII, each chain in a different colour. The sheets of the motif line the central cavity of the trimer with the helices at the periphery. (B) Ribbon diagrams of the monomers of HsPII (i), EcPII (ii), EcPII-ATP (iii), EcGlnK (iv) and EcGlnK-ATP (v). Secondary structures are colour coded: green sheets, 1–4, blue helices, 1–2 and 3[10] helix and orange loops. The monomers share the same motif with the major structural differences residing in the loops T and C.

The above figure is reprinted by permission from the Federation of European Biochemical Societies: Eur J Biochem (2002, 269, 3296-3303) copyright 2002.