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

[CSV file]

Density of motif

t-test: p=0.000875172

Neutral set average density: 0.00304147

Different set average density: 0.00414487

Presence of motif

           motif_present
gene_set    absent present
  different    803     191
  neutral     1675     278

Fisher's exact test: p=0.000640434

Binomial GLM: p=0.000495797

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.6533  -0.6533  -0.5542  -0.5542   1.9746  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.79595    0.06476 -27.731  < 2e-16 ***
differentTRUE  0.35987    0.10332   3.483 0.000496 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 2583.0  on 2946  degrees of freedom
Residual deviance: 2571.1  on 2945  degrees of freedom
AIC: 2575.1

Number of Fisher Scoring iterations: 4