>sp|Q9CQR7|PEN2_MOUSE Gamma-secretase subunit PEN-2 OS=Mus musculus GN=Psenen MNLERVSNEEKLNLCRKYYLGGFAFLPFLWLVNIFWFFREAFLAPAYTEQSQIKGYVWRS AVGFLFWVIILATWITIFQIYRPRWGALGDYLSFTIPLGTP