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Figure 2
(a) Cartoon representation of the crystal structure of mouse met Hb. Structural superposition of the Cα traces of mouse Hb with other small animal Hbs and human Hb are shown for the tetramer (b), α1β1 dimer (c), α chains (d) and β chains (e). The superimposed molecules are shown as ribbon diagrams in forest green (mouse Hb), orange (BRat Hb; PDB entry 3hf4), lemon (DMouse aquo-met Hb; PDB entry 4h2l), pale green (DMouse deoxy Hb; PDB entry 5ker), sky blue (GPig oxy Hb; PDB entry 3a0g), purple (GPig met Hb; PDB entry 3hyu), yellow (mongoose oxy Hb; PDB entry 4yu4), sand (APika Hb; PDB entry 5eui), magenta (rabbit oxy Hb; PDB entry 2rao), pink (EHare oxy Hb; PDB entry 3lqd), violet (cat Hb; PDB entry 3gqp), cyan (human oxy Hb; PDB entry 1hho), blue (human carboxy Hb; PDB entry 1aj9), red (human deoxy Hb; PDB entry 2hhb) and brown (human met Hb; PDB entry 1jy7). The heme groups of each subunit are shown in stick representation in all of the diagrams. |