Figure 4
These PS330 FRODO slides illustrate the use of skeletonized density with a main-chain database. The density is the retinol-binding protein experimental map (Newcomer et al., 1984) with (a) the unedited skeleton (triangles indicate errors in the skeleton), (b) a somewhat edited skeleton, (c) a golden-coloured partly traced portion of the skeleton and (d) an overlay of the traced portion with a polyalanine built from the trace in pentapeptide fragments. |