| Lyn and Yes , as well as Src , but not Lck physically associate with the prominent PSD scaffolding protein PSD 95 in co immunoprecipitation experiments . ^^^ Further , we demonstrate that PSD 95 GST fusion proteins bind directly to purified recombinant Lyn , Src , and Yes in vitro . ^^^ In addition , we show that PSD 95 is unique among PSD 95 family members in that the other members , PSD 93 , SAP 97 , and SAP 102 , do not physically associate with Lyn , Src , or Yes . ^^^ |