| Using specific antibodies , we found at least five septins , Sept 2 , Sept 7 , Sept 8 , Sept9b , and Sept 11 , in septin complexes affinity purified with anti Sept 7 antibody conjugated column from rat embryonic fibroblast REF 52 cells . ^^^ Immunofluorescence studies revealed co localization of Sept 7 , Sept9b , and Sept 11 along stress fibers in REF 52 cells . ^^^ |