The protein was expressed with sequence ...The protein was expressed with sequence MGSSHHHHHHMASMSDSEVNQEAKPEVKPEVKPETHINLKVSDGSSEIFFKIKKTTPLRRLMEAFAKRQGKEMDSLRFLYDGIRIQADQTPEDLDMEDNDIIEAHREQIGGIEENLYFQSNMHLPPLEPPISDRYFASGEVTIAADVVIAPGVLLIAEADSRIEIASGVCIGLGSVIHARGGAIIIQAGALLAAGVLIVGQSIVGRQACLGASTTLVNTSIEAGGVTAPGSLLSAETPPTTATVSSSEPAGRSPQSSAIAHPTKVYGKEQFLRMRQSMFPDR. However, N terminal SUMO-tag, the tag and the C terminal of the target protein were degraded during 4-month crystallization. FQSN were linker residues between the SUMO tag and the target protein.