Sandbox Reserved 460: Difference between revisions
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The electron flow proceeds initially from reduced ferredoxin to the enzyme's [4Fe–4S] cluster and subsequently from the reduced cluster to the siroheme. Since ferredoxin is a one-electron donor, the enzyme must accumulate six electrons in one-electron steps before it can reduce nitrite. | The electron flow proceeds initially from reduced ferredoxin to the enzyme's [4Fe–4S] cluster and subsequently from the reduced cluster to the siroheme. Since ferredoxin is a one-electron donor, the enzyme must accumulate six electrons in one-electron steps before it can reduce nitrite. | ||
[[Image:Pathway.jpeg]] | |||
==='''Structure'''=== | ==='''Structure'''=== | ||
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It consists of 33 helices (33% of chain) and 33 beta strands (21% of chain) | It consists of 33 helices (33% of chain) and 33 beta strands (21% of chain) | ||
==== | ====Ligand Binding to Active Sites==== | ||
* <scene name='Sandbox_Reserved_460/Ac1/3'>AC1</scene>binds Siroheme | * <scene name='Sandbox_Reserved_460/Ac1/3'>AC1</scene>binds Siroheme | ||
* <scene name='Sandbox_Reserved_460/Ac2/3'>AC2</scene>binds Iron-Sulfur Complex | * <scene name='Sandbox_Reserved_460/Ac2/3'>AC2</scene>binds Iron-Sulfur Complex | ||
