Factors Influencing the Identification of Transcription Factor Binding Sites by Cross-Species Comparison

Table 4.

Phylogenetic Footprinting Results for the Study Set Using Orthologous Data from Multiple Species

Number of motif predictions Correspondence with known sites Motif predictions with avg MAP ≥ critical value Correspondence with known sites for:
Motif predictions with avg MAP ≥ critical value Motif predictions with avg MAP < critical value
EC-ST-YP-VC-HI-SO-PA:
 Predictions with ≥2 species 163 68.7% (112/163) 52.1% (85/163) 75.3% (64/85) 61.5% (48/78)
 Predictions with ≥3 species 116 74.1% (86/116) 60.3% (70/116) 80.0% (56/70) 65.2% (30/46)
 Predictions with ≥4 species 84 75.0% (63/84) 69.0% (58/84) 79.3% (46/58) 65.4% (17/26)
EC-YP-VC-HI-SO-PA:
 Predictions with ≥2 species 140 67.9% (95/140) 53.6% (75/140) 84.0% (63/75) 49.2% (32/65)
 Predictions with ≥3 species 102 65.7% (67/102) 60.8% (62/102) 85.5% (53/62) 35.0% (14/40)
 Predictions with ≥4 species 65 69.2% (45/65) 69.2% (45/65) 84.4% (38/45) 35.0% (7/20)
  • MAP indicates maximum a posteriori probability; EC,Escherichia coli; ST, Salmonella typhi; YP,Yersinia pestis; VC, Vibrio cholerae; HI,Haemophilus influenzae; SO, Shewanella oneidensis; PA, Pseudomonas aeruginosa; BU,Buchnera sp.; AF, Acidithiobacillus ferrooxidans;and XF, Xylella fastidiosa.

This Article

  1. Genome Res. 12: 1523-1532

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