UNIVERSITY OF FREIBURG IMAGE: CUT-OPEN VIEW OF THE MODIFIED (R220S) AEROLYSIN PORE (GRAY) WITH FIELD LINES (DASHED) IN A LIPID MEMBRANE. FRAGMENTS OF HUMAN HISTONE PROTEIN 4 ACETYLATED AT VARIOUS LYSINE RESIDUES ARRIVE FROM THE UPPER COMPARTMENT; A FRAGMENT ACETYLATED AT LYSINE-8 IS SHOWN WITHIN THE PORE. THE PEPTIDE BACKBONES ARE SHOWN IN GRAY, THE...