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

[CSV file]

Density of motif

t-test: p=1.73525e-08

Neutral set average density: 0.00649258

Different set average density: 0.00945674

Presence of motif

           motif_present
gene_set    absent present
  different    627     367
  neutral     1430     523

Fisher's exact test: p=2.02182e-08

Binomial GLM: p=1.61741e-08

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.9600  -0.7895  -0.7895   1.4117   1.6233  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.00585    0.05110 -19.683  < 2e-16 ***
differentTRUE  0.47026    0.08325   5.649 1.62e-08 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3610.4  on 2946  degrees of freedom
Residual deviance: 3578.8  on 2945  degrees of freedom
AIC: 3582.8

Number of Fisher Scoring iterations: 4