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Identification of ß-sheet motifs in three-dimensional protein structures, using a subgraph isomorphism algorithm: an update of a 1992 study, by Ruth V. Spriggs

Appendix C
Table 1) The Percentage of Possible Motifs Retrieved in 1999 and 1992


Current Study (1999)


Number of strands in sheet Number of motifs possible Number of unique motifs possible Number of motifs found % of motifs found in 1999
3 8 3 3 100.00
4 16 6 6 100.00
5 32 10 10 100.00
6 64 20 20 100.00
7 128 36 34 94.44
8 256 72 49 68.06
9 512 137 62 45.26
10 1024 272 83 30.51
11 2048 576 43 7.47
12 4096 1152 34 2.95
13 8192 2304 25 1.09
14 16384 4608 23 0.50
15 32768 9216 16 0.17
Totals 65528 18412 408 2.22


Ujah (1992) Study


Number of strands in sheet Number of motifs possible Number of unique motifs possible Number of motifs found % of motifs found in 1992
3 4 3 3 100.00
4 8 6 6 100.00
5 16 10 10 100.00
6 32 20 13 65.00
7 64 36 17 47.22
8 128 72 12 16.67
9 256 142 9 6.34
10 512 288 9 3.13
11 1024 576 5 0.87
12 2048 1152 5 0.43
13 4096 2304 5 0.22
14 8192 4608 3 0.07
15 16384 9216 1 0.01
Totals 32764 18433 98 0.53

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Identification of ß-sheet motifs in three-dimensional protein structures, using a subgraph isomorphism algorithm: an update of a 1992 study.
MSc in Information Management, 1998/1999
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