Purity > 90% as determined by SDS-PAGE. MW: 67.2kDa. Full Length: 1-504aa. N-terminal 6xHis-SUMO-tagged. Mus musculus (Mouse). SRF is a transcription factor that binds to the serum response element (SRE), a short sequence of dyad symmetry located 300 bp to the 5' of the site of transcription initiation of some genes (such as FOS) (By similarity). Required for cardiac differentiation and maturation.