Purification and Characterization of Abundant Secreted Protein in Suspension-Cultured Pumpkin Cells
- 1 July 1990
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 93 (3), 1037-1041
- https://doi.org/10.1104/pp.93.3.1037
Abstract
The abundant secreted protein with molecular weight of 32,000 was purified from the culture medium of suspension-cultured pumpkin (Cucurbita sp.) cells. Two steps, ammonium sulfate fractionation and Sepharose 6B column chromatography, were sufficient for purification to homogeneity. Antibodies against the pure protein were used to show that a protein of the same size is made by callus cells. There is considerable homology between the amino-terminal amino acid sequence of this secreted protein and chitinase isolated from tobacco (Nicotiana tabacum L.) or bean (Phaseolus vulgaris L.).This publication has 23 references indexed in Scilit:
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