Corrin Biosynthesis (part 3)

(Late cobalt insertion, aerobic conditions)

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For nomenclature of tetrapyrroles, click here.

For nomenclature of corrins, click here.

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enzymes homepage.
corrin and siroheme biosynthesis (part 2)
corrin biosynthesis (part 4)
EC 1.3.1.54 precorrin-6X reductase
EC 1.14.13.83 precorrin-3B synthase (mechanism)
EC 2.1.1.131 precorrin-3B C¹⁷-methyltransferase (mechanism)
EC 2.1.1.133 precorrin-4 C¹¹-methyltransferase
EC 2.1.1.152 precorrin-5 C¹-methyltransferase (deacetylating) (mechanism)