Acts as an activator of serum response factor (SRF)-dependent transcription possibly by inducing nuclear translocation of MKL1 or MKL2 and through a mechanism requiring Rho-actin signaling.
Subcellular locations: Cytoplasm, Myofibril, Sarcomere, Cytoplasm, Cytoskeleton
Localized to the I-band of the sarcomere and to a lesser extent to the sarcomeric structure between Z-lines.