Single-step purification of full-length human androgen receptor.
The full-length human androgen receptor with an N-terminal biotin acceptor peptide tag was overexpressed in Spodoptera frugiperda cells in the presence of 1 microM dihydrotestosterone. Site-specific biotinylation of BAP was achieved in vivo by co-expression of E. coli biotin holoenzyme synthetase. The androgen receptor was purified by single-step affinity chromatography using Streptavidin Mutein Matrix under native conditions. The resultant protein was active, stable, 95% homogeneous, and we obtained sufficient yield for use in functional and structural studies.
Juzumiene
Dalia
D
Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC 27710, USA.
Chang
Ching-yi
CY
Fan
Daju
D
Hartney
Tanya
T
Norris
John D
JD
McDonnell
Donald P
DP