This is a default text for your page Nos1. Click above on edit this page to modify. Be careful with the < and > signs.
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Function
Disease
Relevance
Structural highlights
Nos exists as a homodimer. This homodimer consists of two regions. One region is an N-terminal oxygenase domain and the other is a C-terminal reductase. The N-terminal oxygenase domain is an extended beta sheet cage with binding sites for heme and pterin. Nos has a N-terminal catalytic domain with a heme active site. Nos 1 also has a cofactor site nearby for tetrahydrobiopterin (H4B). Nos has a C-terminal reductase domain containing FMN, FAD and NADPH binding sites. Electrons are passed from FAD to FMN and then to the heme. This electron flow is controlled by the binding of CaM and Ca2+ in the linker region between the two major domains. The linker between the oxygenase and reductase domains contains a calmodulin-binding sequence. Nos1 is found in neuronal tissue.
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