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

[CSV file]

Density of motif

t-test: p=2.19743e-11

Neutral set average density: 0.00547875

Different set average density: 0.00869215

Presence of motif

           motif_present
gene_set    absent present
  different    642     352
  neutral     1482     471

Fisher's exact test: p=2.04617e-10

Binomial GLM: p=1.28959e-10

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.9350  -0.7429  -0.7429   1.4409   1.6866  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.14629    0.05290 -21.671  < 2e-16 ***
differentTRUE  0.54533    0.08483   6.428 1.29e-10 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3490.8  on 2946  degrees of freedom
Residual deviance: 3449.9  on 2945  degrees of freedom
AIC: 3453.9

Number of Fisher Scoring iterations: 4