Tamavidin 2-HOT, a highly thermostable biotin-binding protein.

Abstract excerpt

Tamavidin 2 is a fungal tetrameric protein that binds with high affinity to biotin, like avidin and streptavidin. We replaced asparagine-115, which lies in a subunit-subunit interface of tamavidin 2, with cysteine to generate the novel, highly thermostable protein tamavidin 2-HOT. Tamavidin 2-HOT retained more than 80% of its biotin-binding activity even after incubation at 99.9°C for 60min and was fully active...

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