Crystallization (Comment) | Organism |
---|---|
electron paramagnetic study of substrate-O2 binding. Ordered binding of L-cysteine prior to NO and presumably O2. Upon addition of NO to cysteine dioxygenase in the presence of substrate L-cysteine, a low-spin(FeNO)7 signal with spin S of 1/2that accounts for 85% of the iron within the enzyme develops. Substitution of L-cysteine with isosteric substrate analogues cysteamine, 3-mercaptopropionic acid, and propane thiol does not produce any analogous signals.The unusual (FeNO)7, spin 1/2 electronic configuration adopted by the substrate-bound iron-nitrosyl cysteine dioxygenase is a result of the bidentate thiol/amine coordination of L-cysteine in the NO-bound active site | Mus musculus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Iron | non-heme iron | Mus musculus |
Organism | UniProt | Comment | Textmining |
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Mus musculus | P60334 | - |
- |