3-mers AAA 50 bases upstrand from poly(A) site

[CSV file]

Density of motif

t-test: p=2.68283e-16

Neutral set average density: 0.0698003

Different set average density: 0.0556137

Presence of motif

           motif_present
gene_set    absent present
  different     70     924
  neutral       61    1892

Fisher's exact test: p=2.65002e-06

Binomial GLM: p=1.99244e-06

Call:
glm(formula = motif_present ~ different, family = binomial, data = daf)

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-2.6330   0.2519   0.2519   0.3822   0.3822  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)     3.4345     0.1301  26.402  < 2e-16 ***
differentTRUE  -0.8543     0.1797  -4.754 1.99e-06 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 1071.8  on 2946  degrees of freedom
Residual deviance: 1049.4  on 2945  degrees of freedom
AIC: 1053.4

Number of Fisher Scoring iterations: 6