Figure 5
(a) The four best-matching monomers (listed in Table 3) of archaeal Hj-resolving enzymes found in DALI are superimposed on the Hjc_15-6 monomer (blue). Only the conservative parts of the monomers up to amino-acid residue 60 are displayed. (b) Residues 1–60 (chain B, PDB entry 1ipi) of the P. furiosus enzyme (pink and dark red) are superimposed on residues 5–60 of Hjc_15-6 (light and dark blue). The image illustrates how well the catalytic motif Glu10 and Glu53-Val54-Lys55 of Hjc_15-6 matches the corresponding residues in the P. furiosus enzyme. (c)–(h) The dimer organizations of Hjc_15-6, the four best-matching archaeal Hj-resolving enzymes and phage T7 endonuclease I are displayed. Colouring is according to secondary structure (α-helices as red tubes and β-sheets as blue arrows). All images in Fig. 5 were produced in CCP4MG. |