Abstract
IN a previous survey of the distribution in Nature of betaine-homocysteine-methyl-transferases, these enzymes were found in the livers of all vertebrate animals investigated1,2. They could not be detected in any of a number of lower animals examined. The search for the enzymes has since continued, which has led to the discovery of a betaine–homocysteine–methyl-transferase in a member of the Mollusca, the pond mussel Anodonta cygnea. The work on which this observation is based will be briefly reported here.
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References
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ERICSON, LE. Transmethylation in Anodonta cygnea . Nature 185, 465–466 (1960). https://doi.org/10.1038/185465a0
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DOI: https://doi.org/10.1038/185465a0
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