3-mers CGU 3' UTR

[CSV file]

Density of motif

t-test: p=2.13942e-09

Neutral set average density: 0.00627457

Different set average density: 0.00784665

Presence of motif

           motif_present
gene_set    absent present
  different    207     787
  neutral      833    1120

Fisher's exact test: p=3.94725e-33

Binomial GLM: p=1.61582e-30

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.7714  -1.3054   0.6834   1.0546   1.0546  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)    0.29605    0.04575   6.471 9.76e-11 ***
differentTRUE  1.03946    0.09053  11.482  < 2e-16 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3826.5  on 2946  degrees of freedom
Residual deviance: 3682.2  on 2945  degrees of freedom
AIC: 3686.2

Number of Fisher Scoring iterations: 4

Binomial GLM adjusted for length: p=0.0880009

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-3.4144  -0.8911   0.2436   0.8468   1.7044  

Coefficients:
                Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.5092038  0.0911370 -16.560   <2e-16 ***
length         0.0119766  0.0005895  20.317   <2e-16 ***
differentTRUE  0.1854616  0.1087089   1.706    0.088 .  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3826.5  on 2946  degrees of freedom
Residual deviance: 2851.6  on 2944  degrees of freedom
AIC: 2857.6

Number of Fisher Scoring iterations: 6