| GST Pulldown assay has confirmed the interaction between AdAM 19 and ArgBP 1 . ^^^ By constructing series of deletion mutants of ADAM 19 CT and ArgBP 1 respectively , the interaction regions have been identified . ^^^ They are the SH 3 binding sites in ADAM 19 CT and the P 4 region in ArgBP 1 . ^^^ |