PAFAH1B1 encodes the regulatory β-subunit of cytosolic platelet-activating factor acetylhydrolase and is essential for proper neuronal migration during brain development 1. The protein functions as a critical regulator of dynein motor activity and microtubule dynamics, playing a key role in nucleokinesis - the process by which migrating neurons translocate their nuclei toward the centrosome during cortical development 1. Recent structural studies reveal that LIS1 (PAFAH1B1) binds dynactin's p150 subunit and constrains dynein-dynactin interactions to ensure efficient complex formation 2. Mutations in PAFAH1B1 cause classical lissencephaly and subcortical band heterotopia, neurodevelopmental disorders characterized by defective neuronal migration 3. Approximately 60% of patients with classical lissencephaly have deletions or mutations in this gene, with most mutations resulting in truncated proteins 3. Beyond its neurological roles, PAFAH1B1 maintains angiogenic capacity in endothelial cells by regulating Matrix Gla Protein expression 4 and is required for proper spermatogenesis and early embryonic development in humans 5. In cancer contexts, PAFAH1B1 controls cell cycle progression and DNA integrity in triple-negative breast cancer cells, representing a potential therapeutic target 6.