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

[CSV file]

Density of motif

t-test: p=0.00282209

Neutral set average density: 0.00754736

Different set average density: 0.00901408

Presence of motif

           motif_present
gene_set    absent present
  different    616     378
  neutral     1329     624

Fisher's exact test: p=0.00115204

Binomial GLM: p=0.00100561

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

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-0.9782  -0.8774  -0.8774   1.3906   1.5106  

Coefficients:
              Estimate Std. Error z value Pr(>|z|)    
(Intercept)   -0.75603    0.04853 -15.579  < 2e-16 ***
differentTRUE  0.26768    0.08139   3.289  0.00101 ** 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 3778.3  on 2946  degrees of freedom
Residual deviance: 3767.5  on 2945  degrees of freedom
AIC: 3771.5

Number of Fisher Scoring iterations: 4