Four and a half LIM domains protein 5 (FHL5)

There is no recognized protein named "Four and a half LIM domains 5" in current biological or biomedical databases, nor in the referenced scientific literature. The family of "Four and a half LIM domain proteins" consists of four main members: FHL1, FHL2, FHL3, and FHL4. These are zinc finger proteins with important roles in striated muscle, cardiac hypertrophy, and other processes, but there is no evidence for a fifth ("5") member named as such[2]. The four-member FHL family (FHL1–FHL4) is well-studied, with roles as protein–protein interaction platforms, particularly in muscle tissue and cardiac physiology, but the existence of "FHL5" is not supported in scientific publications or genetic/protein databases[2]. If you meant a member of the FHL family (such as FHL1, FHL2, FHL3, or FHL4), please specify for more detailed information. If "Four and a half LIM domains 5" was a search or data entry mistake, the target does not exist as named (hence, is_incorrect: true). If you meant another protein (e.g., FHL1–FHL4, or LIM domain-containing protein 5), clarification is needed.