Figure 2
Structure of a tetramer (chains A–D) of H. polymorpha catalase. Each monomer coordinates an iron-bound haem group, depicted in sphere representation with C, O, N and Fe atoms coloured grey, red, blue and gold, respectively. The C-terminus of each monomer, together with the N-termini of chains C and D (NC and ND), are indicated. The N-termini of chains A and B are occluded in this orientation. |