Sandbox Reserved 1716: Difference between revisions

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==Step  
==Step I==
Step I of reforming Vitamin K Epoxide through the enzyme Vitamin K Reductase (VKOR) begins in a partially oxidized open conformation. In this state, catalytic cysteines 51 and 132 form a disulfide bond. Cysteines 43 and 135 are considered "free" because they are not bound to anything in this state. The <scene name='90/904321/I/2'>active site</scene> (highlighted in hot pink) is also empty because Vitamin K Epoxide has not bound yet.