FMN2 (Formin 2): FMN2 is a protein involved in regulating the cytoskeleton, especially in forming actin filaments. It plays a crucial role in cell division, movement, and morphogenesis, supporting both the structural integrity and dynamic remodeling of the cytoskeleton. FMN2 is vital during cell division and nervous system development, and mutations in the FMN2 gene have been associated with reduced sperm motility, infertility, and certain developmental disorders.