| Using the yeast two hybrid screening of a human fetal brain cDNA library , we have identified a new interaction partner of the human AGTRAP protein , RACK 1 ( Receptor of Activated Protein C Kinase ) . ^^^ The AGTRAP RACK 1 interaction was confirmed by GST fusion protein pull down assays , co immunoprecipitation and surface plasmon resonance . ^^^ We suggest that the AGTRAP RACK 1 interaction may help to recruit signaling complex to the AT ( 1 ) receptor to affect AT ( 1 ) receptor signaling . . ^^^ |