Figure 3
Cartoon representations of the different conformations observed for the cd1 nitrite reductase NirS from P. aeruginosa (heme d1-bound NirS, PDB entry 1nir, Nurizzo et al., 1997; NirSH327A, PDB entry 1hzu, Brown et al., 2001) after superposition of the d1 domains. The N-terminal arm is coloured red, the linker blue and the d1 domain grey. The cytochrome c domain and the tetrapyrroles are coloured individually. |