RANBP17 and head and neck squamous cell carcinoma: To further clear up the role of RanBP17 in cell proliferation, two HNSCC cell lines, UM-SCC-3 and UT-SCC-26A, were sorted according to their respective cell cycle phases (G1/G0, S, G2/M) and RanBP17 RNA and protein expression levels were evaluated for cells from each cell cycle phase (Fig. 4).