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Figure 1 Coarse-grained structural coverage of domain sequences in Swiss-Prot-TrEMBL Families are ranked in order of size, largest to smallest The black line represents coverage of domain sequences by 2486 CATH and Pfam-A_struc families, whilst the grey line represents additional coverage that would be achieved by solving a structure for structurally uncharacterised Pfam-A and NewFam domain families.
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Figure 2 a) The percentage of newly solved Pfam-A families, per year, classified as a new fold, new superfamily, or old superfamily in the CATH domain classification Values are calculated as the percentage of first-solved structures that have been classified in the CATH database b) The underlying data used in this calculation The calculated number of new folds and superfamilies are similar when using either the CATH or SCOP domain classifications.
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Figure 3 Coarse-grained structural coverage of seven model genomes. The benefit of solving a structure for 1571 structurally uncharacterised families in E. coli across the remaining six genomes is shown in the inset table.
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Figure 4 Size distribution of the largest 2500 structurally uncharacterised Pfam-A and NewFam domain families (clear bars) with the proportion of these largest families lacking a prokaryotic sequence (light grey infill on white bars) The size distribution of the 2500 largest Pfam-A and NewFam families with at least five prokaryotic sequences is also shown (black bars).
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Figure 5 Fine-grained structural coverage of domain sequences in Swiss-Prot-TrEMBL Subfamilies are ranked in order of size, largest to smallest.
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Figure 6 a) Comparison of fine-grained structural coverage of subfamilies; subfamilies with a solved structure (black line), non-structural subfamilies within structural families (dark grey line), non-structural subfamilies within non-structural families (light grey line) Also shown in the comparative coarse-grained coverage of the largest non-structural families (thin grey line) b) Number of unique prokaryotic organisms represented in structurally uncharacterised families (Pfam-A) compared to the number found within structurally uncharacterised subfamilies within CATH and Pfam-A_struc families.
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Figure 7 The number of subfamilies in structural families against the number of those subfamilies with a solved structure Our structural and functional understanding of many of the most diverse domain families would benefit from the structural characterisation of additional family members.
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