Recombinant metK (S-adenosylmethionine synthase) from Shigella sonnei, expressed in E. coli and supplied as an N-terminal His-tagged purified protein in a filtered formulation. The protein is provided in a HEPES-based buffer with glycerol and DTT, is endotoxin-tested, and is intended for biochemical and structural research; store frozen and avoid repeated freeze-thaw cycles.
- Recombinant metK from Shigella sonnei, His-tagged.
- Expressed in E. coli for high yield.
- Supplied as a 0.22 μm filtered solution in 50 mM HEPES, pH 7.5, 200 mM NaCl, 20% glycerol, 1 mM DTT.
- Endotoxin level <1 EU/μg, determined by LAL method.
- Molecular weight ~44 kDa by SDS-PAGE under reducing conditions.
- Stable when stored at -80°C; ship on dry ice and avoid repeated freeze-thaw cycles.
- Available in small research sizes suitable for biochemical assays.