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. 1978 Jun;61(6):1037–1039. doi: 10.1104/pp.61.6.1037

Isoenzyme of Pyruvate Kinase in Proplastids from Developing Castor Bean Endosperm 1

Vincenzo De Luca 1, David T Dennis 1
PMCID: PMC1092036  PMID: 16660412

Abstract

Proplastids from developing castor bean (Ricinus communis) endosperm have a pyruvate kinase activity which is extremely unstable on isolation from the organelle. It can be stabilized by 20 mm 2-mercaptoethanol in 20% ethylene glycol. In contrast the soluble pyruvate kinase is stable at 60 C for 10 minutes. The two activities have different pH optima. The soluble and the proplastid activities are eluted from a diethylaminoethyl-Sephadex A-25 sievorptive column at different ionic strengths.

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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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