Identification of LRPPRC as a novel ASS1 interacting protein. Cell extracts prepared from SW-1116 cells expressing Flag-ASS1, Flag-ASS1/LOC113230 300-800 or empty vector were incubated with M2 beads and the co-eluted proteins were resolved on SDS-PAGE gel and detected by silver staining assays. The specific band was collected and the potential proteins were identified by Mass spectrometry. 