3-mers CAU 3' UTR

[CSV file]

Density of motif

t-test: p=1.48234e-11

Neutral set average density: 0.0184082

Different set average density: 0.0214424

Presence of motif

           motif_present
gene_set    absent present
  different     43     951
  neutral      338    1615

Fisher's exact test: p=1.1222e-26

Binomial GLM: p=4.42671e-20

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-2.5062   0.2974   0.6165   0.6165   0.6165  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)    1.56404    0.05981  26.148   <2e-16 ***
differentTRUE  1.53227    0.16697   9.177   <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: 2269.3  on 2946  degrees of freedom
Residual deviance: 2153.8  on 2945  degrees of freedom
AIC: 2157.8

Number of Fisher Scoring iterations: 5

Binomial GLM adjusted for length: p=0.0401905

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-3.2957   0.0074   0.1326   0.5000   1.4724  

Coefficients:
               Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -1.182986   0.149124  -7.933 2.14e-15 ***
length         0.025594   0.001634  15.663  < 2e-16 ***
differentTRUE  0.390061   0.190108   2.052   0.0402 *  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 2269.3  on 2946  degrees of freedom
Residual deviance: 1544.9  on 2944  degrees of freedom
AIC: 1550.9

Number of Fisher Scoring iterations: 8