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

[CSV file]

Density of motif

t-test: p=0.00631701

Neutral set average density: 0.00562212

Different set average density: 0.0068008

Presence of motif

           motif_present
gene_set    absent present
  different    700     294
  neutral     1472     481

Fisher's exact test: p=0.00460283

Binomial GLM: p=0.00395787

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.8374  -0.7520  -0.7520   1.5609   1.6741  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.11851    0.05252 -21.297  < 2e-16 ***
differentTRUE  0.25101    0.08711   2.882  0.00396 ** 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3395.8  on 2946  degrees of freedom
Residual deviance: 3387.6  on 2945  degrees of freedom
AIC: 3391.6

Number of Fisher Scoring iterations: 4