Figure 4
(a) Distribution of `new' and total SCOP folds (red and yellow) and `new' and total CATH topologies (purple and green) in the PDB. This graph was generated using the tools available in the `PDB Statistics' page of the RSCB PDB (https://www.rcsb.org
; Berman et al., 2000). There has been no new fold reported since 2008 and no new topology since 2009. (b) Distribution of new `all-α' folds over the years: the large majority were discovered between 1990 and 2000, and between then and now the distribution of folds is basically unchanged. (c) Yearly and total reports for the α–α superhelix fold (as defined in SCOP). Even if the total number of folds has not changed, the number of structures within the fold has increased. |