TY - JOUR AU - Lee, M C; Orci, L; Hamamoto, S; Futai, E; Ravazzola, M; Schekman, R TI - Sar1p N-terminal helix initiates membrane curvature and completes the fission of a COPII vesicle JO - Cell IS - 4 VL - 122 PY - 2005 DO - 10.1016/j.cell.2005.07.025 SP - 605 EP - 617 ER -