Updated project metadata. We have previously shown that FGF9 is overexpressed in hypoxia through the IRES located in the 5’UTR. To identify the protein that binds to FGF9 IRES and controls FGF9 protein synthesis in hypoxia, FGF9 IRES RNA was in vitro synthesized and used to pulled-down interacting proteins. The RNA-protein complexes were first visualized by sliver staining, followed by cutting specific bands for protein identification using matrix-assisted laser desorption/ionization time-of-flight mass spectrometer (MALDI-TOF MS).