Article
Five-coordinate H64Q neuroglobin as a ligand-trap antidote for carbon monoxide poisoning.
Science translational medicine - 7 Dec 2016
Azarov Ivan, Wang Ling, Rose Jason J, Xu Qinzi, Huang Xueyin N, Belanger Andrea, Wang Ying, Guo Lanping, Liu Chen, Ucer Kamil B, McTiernan Charles F, O'Donnell Christopher P, Shiva Sruti, Tejero Jesús, Kim-Shapiro Daniel B, Gladwin Mark T
Abstract excerpt
Carbon monoxide (CO) is a leading cause of poisoning deaths worldwide, with no available antidotal therapy. We introduce a potential treatment paradigm for CO poisoning, based on near-irreversible binding of CO by an engineered human neuroglobin (Ngb). Ngb is a six-coordinate hemoprotein, with the heme iron coordinated by two histidine residues. We mutated the distal histidine to glutamine (H64Q) and substituted...
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