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Purification and composition of protein antifreezes with high cysteine contents from larvae of the beetle,Tenebrio molitor

✍ Scribed by Patterson, Jean L. ;Duman, John G.

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 293 KB
Volume: 219
Category: Article
ISSN: 0022-104X
DOI: 10.1002/jez.1402190314

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✦ Synopsis

Abstract

Two antifreeze proteins with thermal hysteresis activity (they depress the freezing point of aqueous solutions by a noncolligative mechanism well below the melting point) were purified from cold‐acclimated larvae of the beetle, Tenebrio molitor. Both proteins have unusual amino acid compositions consisting of high levels of cysteine (15.4 and 28.0 mol%).

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Composition of a protein antifreeze from

Composition of a protein antifreeze from larvae of the beetle, Tenebrio molitor

✍ Patterson, Jean L. ;Duman, John G. 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 305 KB

## Abstract A thermal hysteresis producing antifreeze protein was isolated from larvae of the beetle, __Tenebrio molitor__. This is the first thermal hysteresis protein purified from an insect. The specific activity of the __Tenebrio__ antifreeze is somewhat greater than that of the fishes. The com