... ERproteins can be found. In fact, not a single humanPGEL ER protein, apart from pFGE, and only onehuman protein with an N-terminal signal peptide and an SGEL C-terminus (endonuclease domain-containingprotein ... 1121methionine ⁄ cysteine. Cells and medium were harvested after the pulse (0 h), or after culturing in 1 mL of chase medium(DMEM with 10% fetal bovine serum, 1% penicillin ⁄ strep-tomycin) for 3 h and ... residue being lysine (21 species),arginine (nine) or histidine (four), and the acidicresidue being glutamate (30) or aspartate (four). Mur-ine and rat pFGE carry the canonical KEDL motif, and the...