Coding sequence for the modified tyrosyl-tRNA-synthetase (eAzFRS, including the mutations Thr37, Ser182, Ala183, and Arg265 [11, 12] and a C-terminal Strep-Tag) from E.coli.
E.coli expression system (RTS 500 E.coli HY Kit, biotechrabbit).
100 mM Isopropyl β-D-1-thiogalactopyranoside (IPTG)
Gravity flow Strep-Tactin® superflow mini-column (0.2 ml).
Strep-Tactin® Purification Buffer Set: 10× Washing Buffer (1 M Tris–Cl, pH 8.0, 1.5 M NaCl, 10 mM EDTA), 10× Elution Buffer (1 M Tris–Cl, pH 8.0, 1.5 M NaCl, 10 mM EDTA, 25 mM Desthiobiotin) and 10× Regeneration Buffer (1 M Tris–Cl, 1.5 M NaCl, 10 mM EDTA, 10 mM HABA (hydroxyl-azophenyl-benzoic acid)).
Zeba™ Spin Desalting Columns (7 K MWCO, 0.5 ml).
Amicon® Ultra Centrifugal Filters (10 K device, 0.5 ml).
Synthetase storage buffer: 50 mM HEPES pH 7.6, 10 mM KOAc, 1 mM MgCl2, 4 mM DTT.
Thermomixer with a microtiter plate adapter and a RTS 500 adapter.