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Methionine synthase

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This is a complex reaction as the product, tetrahydrofolate, is a poor leaving group, thus requiring a "supernucleophile" with a protein-bound B-12 vitamin Cobalamin as the methyl carrier.
This is a complex reaction as the product, tetrahydrofolate, is a poor leaving group, thus requiring a "supernucleophile" with a protein-bound B-12 vitamin Cobalamin as the methyl carrier.
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</StructureSection>
 
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== Vitamin B-12 ==
== Vitamin B-12 ==
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== Oxidation States of Cobalamin ==
== Oxidation States of Cobalamin ==
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Co(I) - active, unstable, high energy
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Co(II) - common oxidation state
== Relevance ==
== Relevance ==
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Methionine deficiency can result in diseases such as birth abnormalities.
Methionine deficiency can result in diseases such as birth abnormalities.
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</StructureSection>
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This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes.
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== References ==
== References ==

Revision as of 18:37, 5 April 2022

Methionine synthase

B-12 dependent fragment of E. coli methionine synthase with Cobalt (in pink)

Drag the structure with the mouse to rotate

References

[1]

  1. Barra L, Fontenelle C, Ermel G, Trautwetter A, Walker GC, Blanco C. Interrelations between glycine betaine catabolism and methionine biosynthesis in Sinorhizobium meliloti strain 102F34. J Bacteriol. 2006 Oct;188(20):7195-204. doi: 10.1128/JB.00208-06. PMID:17015658 doi:http://dx.doi.org/10.1128/JB.00208-06

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Kia Yang, Karsten Theis, Michal Harel, Anna Postnikova, Michael O'Shaughnessy

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