MTGSVDRPDQNRGERSMKSPGLDLVRRTLDEARAAARARGQDAGRGRVASVASGRVAGRR RSWSGPGPDIRDPQPLGKAARELAKKRGWSVRVAEGMVLGQWSAVVGHQIAEHARPTALN DGVLSVIAESTAWATQLRIMQAQLLAKIAAAVGNDVVRSLKITGPAAPSWRKGPRHIAGR GPRDTYGLEHHHHHH
c-terminal 6xhistidine affinity tag