J. Furst, R.B. Sutton, J. Chen, A.T. Brunger, and N. Grigorieff, Electron cryo-microscopy Structure of N-ethyl Maleimide Sensitive Factor at 11 Ã Resolution, EMBO Journal 22, 4365-4374 (2003).Primary data
20S_EM_2003_improved.ccp4 (2.8 MB bytes): EM map