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

[CSV file]

Density of motif

t-test: p=8.56568e-06

Neutral set average density: 0.00371736

Different set average density: 0.00623742

Presence of motif

           motif_present
gene_set    absent present
  different    803     191
  neutral     1701     252

Fisher's exact test: p=9.48141e-06

Binomial GLM: p=6.58463e-06

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.6533  -0.6533  -0.5256  -0.5256   2.0237  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)    -1.9095     0.0675 -28.290  < 2e-16 ***
differentTRUE   0.4735     0.1051   4.507 6.58e-06 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 2494.7  on 2946  degrees of freedom
Residual deviance: 2474.8  on 2945  degrees of freedom
AIC: 2478.8

Number of Fisher Scoring iterations: 4