Signal peptidase complex catalytic subunit SEC11A DFLDDVRRMN KRQLYYQVLN FGMIVSSALM IWKGLMVITG SESPIVVVLS GSMEPAFHRG DLLFLTNRVE DPIRVGEIVV FRIEGREIPI VHRVLKIHEK FVPYIGIVTI LMNDYPKFKY AVLFLLGLFV LVHRE