Hydrogen Sulfide Biochemistry and Interplay with Other Gaseous Mediators in Mammalian Physiology

Figure 10

Structure of sulfide-reacted heme moieties in globins. (a) Structure of ferric heme moiety (light orange sticks) in human hemoglobin with bound HS⁻ (yellow sphere); PDB entry: 5UCU [115]. (b) Structure of sulfheme moiety (light blue sticks) generated by reaction of horse myoglobin and sulfide, resulting in sulfmyoglobin; PDB entry 1YMC [239].

(a)

(b)