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

[CSV file]

Density of motif

t-test: p=7.36949e-10

Neutral set average density: 0.0200512

Different set average density: 0.0250704

Presence of motif

           motif_present
gene_set    absent present
  different    259     735
  neutral      721    1232

Fisher's exact test: p=2.46496e-09

Binomial GLM: p=3.88379e-09

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.6401  -1.4117   0.7770   0.9599   0.9599  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)    0.53576    0.04689  11.426  < 2e-16 ***
differentTRUE  0.50729    0.08614   5.889 3.88e-09 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3748.4  on 2946  degrees of freedom
Residual deviance: 3712.6  on 2945  degrees of freedom
AIC: 3716.6

Number of Fisher Scoring iterations: 4