3-mers AGG 3' UTR

[CSV file]

Density of motif

t-test: p=0.188607

Neutral set average density: 0.0020708

Different set average density: 0.00225918

Presence of motif

           motif_present
gene_set    absent present
  different    533     461
  neutral     1387     566

Fisher's exact test: p=1.68775e-20

Binomial GLM: p=1.4916e-20

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.1164  -0.8273  -0.8273   1.2396   1.5739  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -0.89630    0.04988 -17.970   <2e-16 ***
differentTRUE  0.75118    0.08083   9.294   <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: 3810.5  on 2946  degrees of freedom
Residual deviance: 3724.1  on 2945  degrees of freedom
AIC: 3728.1

Number of Fisher Scoring iterations: 4

Binomial GLM adjusted for length: p=0.259199

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-3.0001  -0.7397  -0.5637   0.8378   2.1088  

Coefficients:
                Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -2.2872626  0.0852861 -26.819   <2e-16 ***
length         0.0068588  0.0003197  21.455   <2e-16 ***
differentTRUE  0.1084515  0.0961206   1.128    0.259    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3810.5  on 2946  degrees of freedom
Residual deviance: 3034.6  on 2944  degrees of freedom
AIC: 3040.6

Number of Fisher Scoring iterations: 4