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Negatively charged flavones and tricin as chemosystematic markers in the palmae

✍ Scribed by Christine A. Williams; Jeffrey B. Harborne; H.Trevor Clifford


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
980 KB
Volume
12
Category
Article
ISSN
0031-9422

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The negatively charged protein extracted
✍ Mitsuo Nohmi; Katsuhisa Tawada πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 English βš– 436 KB

## Abstract We extracted a pure protein from __Tetrahymena pyriformis__ as the chemotactic substance in __Amoeba proteus__. The protein was heat‐stable, negatively charged at neutral pH (since its isoelectric point was near pH 4.5) and composed of three subunits. Its molecular weight was 3 Γ— 8,000.