PDLIM7 (Enigma protein) functions as a scaffolding protein that coordinates protein assembly and localizes LIM-binding proteins to actin filaments through its PDZ domain 1. The protein plays critical roles in cytoskeletal organization and mechanotransduction by binding directly to α-actinin and recruiting to integrin adhesions and F-actin stress fibers in response to mechanical force 2. PDLIM7 is essential for YAP mechanotransduction, as YAP binds to PDLIM7 via its C-terminal PDZ-binding motif, facilitating YAP nuclear localization and transcriptional activity 2. In cancer contexts, PDLIM7 promotes tumor metastasis by stabilizing focal adhesion kinase (FAK) protein and preventing its proteasome-dependent degradation 3. The protein also modulates p53 tumor suppressor function, where deglycosylated PDLIM7 suppresses p53 gene expression and accelerates p53 degradation by promoting complex formation with E3 ubiquitin ligase MDM2 4. PDLIM7 is regulated by the ubiquitin-proteasome system, serving as a target of Nedd4-1 ubiquitin ligase in skeletal muscle atrophy 5. Additionally, PDLIM7 inhibits adipogenesis by competing with MYCBP2 for binding, leading to SMAD4 degradation and reduced PPARγ transcription 6. Clinical significance includes its overexpression in thyroid cancer correlating with advanced clinicopathological characteristics 37.