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. 1980 Dec;66(6):1091–1094. doi: 10.1104/pp.66.6.1091

S-Adenosylmethionine Decarboxylase of Corn Seedlings 1

Yonezo Suzuki 1, Eiji Hirasawa 1
PMCID: PMC440795  PMID: 16661582

Abstract

S-Adenosylmethionine decarboxylase (EC 4.1.1.50) has been purified 500-fold in 30% yield from the extract of etiolated corn seedlings (cv. Golden Crossbantam Bell). This preparation had a molecular weight of approximately 25,000. The Km value was 5 micromolar for S-adenosylmethionine. Methylglyoxal bis(guanylhydrazone), hydroxylamine, and sulfhydryl reagents (such as p-hydroxymercuriphenylsulfonate and N-ethylmaleimide) were effective inhibitors of this enzyme. Germination of corn seed was accompanied by a rapid increase in enzyme activity and maximum activity occurred in 5-day-old seedlings.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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