Research Article

Structure Topology Prediction of Discriminative Sequence Motifs in Membrane Proteins with Domains of Unknown Functions

Table 2

Statistical analyses of the motifs in the protein families with domains of unknown functions (EDS1). The results are split into three subtables. The “TMHMM prediction,” the “Prediction on log-odds,” and the “F-measures”-table. Thereby the “TMHMM prediction”-table represents the absolute occurrences of a motif in all investigated protein families with domains of unknown functions. The “Prediction on log-odds”-table represents the topology state winners (see (6)) followed by the “F-measures”-table which indicates how good or bad a motif can be separated and assigned to a topology state.

Motif TMHMM prediction Prediction on log-odds F-measures
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PG10 430 1556 900 429 1556 901 0.997 1.0 0.998
LF10 2838 1535 2860 2840 1536 2857 0.998 0.998 0.999
PG9 572 1596 896 577 1590 897 0.99 0.998 0.995
LF9 3271 1392 2425 3272 1392 2424 0.998 0.997 0.999
VF8 1936 1065 1116 1933 1065 1119 0.998 0.999 0.996
LF8 3589 1446 2185 3583 1447 2190 0.998 0.998 0.997
GY8 775 863 685 771 860 692 0.995 0.998 0.995
GA7 3035 2907 1943 3047 2889 1949 0.996 0.996 0.993
AG7 3009 2939 2104 3016 2926 2110 0.995 0.997 0.992
AA7 5100 4623 2883 5124 4592 2890 0.993 0.995 0.99
GG7 2380 3171 1463 2373 3175 1466 0.99 0.997 0.987
LY6 1861 1315 1263 1873 1305 1261 0.993 0.995 0.989
VG6 2518 2331 1317 2536 2324 1306 0.987 0.993 0.981
SA6 1747 2683 1269 1757 2674 1268 0.987 0.997 0.985
PG6 566 1756 681 583 1745 675 0.983 0.997 0.982
AL6 6974 3789 2931 7155 3680 2859 0.981 0.98 0.969
PG5 640 1576 696 682 1542 688 0.955 0.989 0.957
GS5 1041 2161 763 1115 2097 753 0.951 0.98 0.959
LG5 4775 3050 1959 5071 2879 1834 0.951 0.952 0.919
AG5 3464 3092 1433 3761 2895 1333 0.942 0.958 0.908
GN4 228 952 271 276 891 284 0.869 0.96 0.919
IV4 3285 1562 723 3568 1339 663 0.905 0.861 0.765
IL4 5700 2244 1282 6209 1889 1128 0.879 0.773 0.699
GS4 1080 2356 651 1381 2063 643 0.807 0.905 0.791
GG4 2302 3822 893 2758 3387 872 0.814 0.89 0.714
SG4 1125 2542 723 1457 2228 705 0.796 0.908 0.789
VL4 6680 3046 1592 7202 2498 1618 0.847 0.737 0.634
AS4 1903 2807 946 2423 2311 922 0.795 0.854 0.769
GA4 3769 3300 1253 4463 2664 1195 0.823 0.807 0.698
AG4 3594 3456 1214 4381 2661 1222 0.813 0.795 0.695
SA3 2005 2965 728 2603 1901 1194 0.65 0.674 0.452
AA3 6719 5358 1327 7855 3199 2350 0.747 0.596 0.386
GL3 5758 3252 1343 6026 2066 2261 0.767 0.597 0.452