jgluz at MAIL.MED.CORNELL.EDU writes:
> Folks, I've got a fusion protein that I want to cut with thrombin for
> crystallization experiments. Working with the histagged version isn't
> working. But I'm afraid of contaminating proteases in commercial
> preparations of thrombin. Could anyone recommend a reliable source for
> this reagent?--John
Get it from Sigma. Reliable but expensive.