Protein kodiran ovim genom stupa u interakciju sa citoplazmatskim domenima amiloid-beta (A4) prekursorskog proteina i amiloid-beta (A4) prekursorskog proteina 2. Ovaj protein sadrži dva vezujuća fosfotirozinska (PTB) domena, za koje se smatra da funkcioniraju u transdukciji signala.[8]
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