A smad2-smad4 protein complex that contains smad4 and the short isoform of smad2 phosphorylated in the last two Ser residues within the SSxS C-terminal motif. [ http://www.ncbi.nlm.nih.gov/pubmed/15350224 ]

Synonyms: (SMAD2:SMAD4):2

This is just here as a test because I lose it