Myeloperoxidase (MPO) (EC 1.11.2.2) [Cleaved into: Myeloperoxidase (75 kDa myeloperoxidase); 89 kDa myeloperoxidase; 84 kDa myeloperoxidase (Promyeloperoxidase) (proMPO); Myeloperoxidase light chain (Myeloperoxidase L-chain) (14.5 kDa myeloperoxidase); Myeloperoxidase heavy chain (Myeloperoxidase H-chain) (59 kDa myeloperoxidase); 38 kDa myeloperoxidase; 22 kDa myeloperoxidase]