Identification of a nuclear targeting domain in the insertion between helices C and D in protease inhibitor-10.


Protease inhibitor 10 (PI-10), an intracellular ovalbumin-serpin, contains a series of basic amino acids in the loop between helices C and D that exhibit homology to known nuclear targeting signals. Transfection of HeLa cells with plasmids encoding enhanced green fluorescent protein (EGFP) coupled to PI-10 revealed an intense fluorescence of the nucleus… (More)


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