Fig. 2. The central cavity of apoCpI and CpIADT. Stereo view of a stick model of the central cavity of apoCpI (carbon atoms in cyan) with Fo – Fc simulated annealing omit map contoured at 4σ in the identical orientation as Fig. 3. A stick model of amino acids lining the central cavity of CpIADT is superposed (carbon atoms in marine). Numbering of amino acids as in the structure of native CpI. Small spheres indicate water atoms (red) and chloride ion (cyan) not present in CpIADT.
