Giovanni Lucchini, Italo Piazza, Renato Bianchetti
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B12-dependent methyl-H4-folate homocysteine methyltransferase in euglena gracilis
Partially purified extracts of Euglena gracilis catalyze synthesis of methionine from methyl-H4-folate and homocysteine. A reducing system and S-adenosyl-methionine are required for full activity, thus indicating that the enzyme involved is the B12-dependent methyl-H4-folate homocysteine methyltransferase.
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