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Azaserine : ウィキペディア英語版
Azaserine

Azaserine is a naturally occurring serine derivative diazo compound with antineoplastic and antibiotic properties deriving from its action as a purinergic antagonist and structural similarity to glutamine. Azazerine acts by competitively inhibiting glutamine amidotransferase, a key enzyme responsible for glutamine metabolism.
== Mechanism of Action ==

Azaserine inhibits the rate limiting step of the metabolic hexosamine pathway and an irreversibly inhibits γ-glutamyltransferase by acting directly at the substrate-binding pocket. Independent of hexosamine pathway inhibition, azaserine has been demonstrated to protect against hyperglycemic endothelial damage by elevating serum concentrations of manganese-superoxide dismutase, directly reducing the concentration of reactive oxygen species.
Azaserine also downregulates the expression of VCAM-1 and ICAM-1 in response to TNF-α, and research indicates that it may have potential in identifying the L-leucine-favoring system transporter in human T-lymphocytes.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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