motifs need to be changed

19C
10C
8B
6B
SM4
3AB
SM2

need to be changed as
K
K+1

protein protein interaction database

protein-protein interaction database
APID http://bioinfow.dep.usal.es/apid/index.htm

IntAct
http://www.ebi.ac.uk/intact/search/do/search?searchString=EBI-539447
http://www.ebi.ac.uk/intact/search/do/search?searchString=EBI-1034130

Collections http://proteome.wayne.edu/PIDBL.html

statistics methods for analyze properties

Since T-Test requires data from normal distribution
And after check our data, it's not.
normality checker, online excel file:
http://udel.edu/~mcdonald/stathistogram.xls

So, we should use "Kruskal-Wallis test" instead, which does not require data from normal distribution.
Online Calculator for two groups:
http://faculty.vassar.edu/lowry/utest.html