2.7.2.2 | purified detagged recombinant enzyme in complex with nonhydrolyzable ATP analogue, adenosine 5'-adenylyl-beta,gamma-imidodiphosphate (AMP-PNP), and with citric acid, hanging drop vapor diffusion method, mixing of 30 mg/ml protein in 50 mM Tris-HCl, pH 8.0, 0.1 M NaCl, 5 mM MgCl2, and 1 mM DTT, with an equal volume of mother liquor containing 0.4 M ammonium citrate dibasic, pH 5.0, and 21% w/v PEG 3350, soaking of crystals in 50 mM AMP-PNP, X-ray diffraction structure determination and analysis at 2.1-2.6 A resolution |
739466 |