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. 1992 Jan;98(1):163–165. doi: 10.1104/pp.98.1.163

Complete Amino Acid Sequence of Soybean Leaf P21 1

Similarity to the Thaumatin-Like Polypeptides

John S Graham 1, William Burkhart 1,2, Jin Xiong 1, Jeffrey W Gillikin 1
PMCID: PMC1080164  PMID: 16668608

Abstract

A polypeptide structurally related to the thaumatin family of proteins has been purified from soybean (Glycine max) leaves and the complete amino acid sequence has been determined. The mature protein, which we have termed P21, has a calculated molecular weight of 21,461 and an isoelectric point of 4.6. The soybean protein shows 64% amino acid identity with thaumatin, a sweet-tasting protein found in the West African shrub Thaumatococcus danielli, and as much as 71% identity with thaumatin-like polypeptides present in tobacco and maize.

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Selected References

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