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

[CSV file]

Density of motif

t-test: p=5.35756e-32

Neutral set average density: 0.045151

Different set average density: 0.0345272

Presence of motif

           motif_present
gene_set    absent present
  different    105     889
  neutral       91    1862

Fisher's exact test: p=4.38845e-09

Binomial GLM: p=3.10407e-09

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-2.4764   0.3089   0.3089   0.4725   0.4725  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)     3.0185     0.1073  28.119  < 2e-16 ***
differentTRUE  -0.8824     0.1489  -5.926  3.1e-09 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 1441.2  on 2946  degrees of freedom
Residual deviance: 1406.3  on 2945  degrees of freedom
AIC: 1410.3

Number of Fisher Scoring iterations: 5