Letter | Published:

Occurrence of Two Different Enzymes in the Silkworm, Bombyx mori, to reduce Folate and Sepiapterin

Naturevolume 199pages908909 (1963) | Download Citation

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Abstract

THE mutant lemon of the silkworm is characteristically yellow in colour, accumulating a fluorescent pigment, xanthopterin-B1, in the skin. Extract of the fat body of the wild-type silkworm converts this pigment into a non fluorescent product1. There is some evidence to support the view that xanthopterin-B1 is identical with sepiapterin2, which is known to be reduced, in the presence of reduced nicotinamide dinucleotide phosphate (NADPH), by a folate reductase from chicken liver and Drosophila3,4.

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References

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    Aruga, H., Kawase, S., and Akino, M., Experientia, 10, 336 (1954).

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    Taira, T., Nature, 189, 231 (1961).

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    Lowry, O. H., Rosebrough, N. J., Farr, A. L., and Randall, R. J., J. Biol. Chem., 193, 265 (1951).

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Affiliations

  1. Department of Biology, Metropolitan University, Tokyo

    • MASAKO MATSUBARA
    • , MOTOO TSUSUE
    •  & MIKI AKINO

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https://doi.org/10.1038/199908a0

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