A firm grip does not always pay off: a new Phact(r) 4 integrin signaling.
β1 integrin signaling plays crucial roles in enteric nervous system development. Zhang and colleagues (pp. 69-81) discovered that phosphatase and actin regulator 4 (Phactr4) antagonizes β1 integrin signaling through protein phosphatase 1 (PP1) in focal adhesions of enteric neural crest cells (ENCCs). Loss of Phactr4-PP1 interaction leads to increased β1 integrin signaling, loss of collective and directional migration, and hindgut hypogangaliosis, indicating that the right adjustment of β1 integrin signaling is required for the normal migration and organization of ENCCs.
Department of Molecular Medicine, Max Planck Institute of Biochemistry, Germany.
Zhiqi
Z
Sun
Reinhard
R
Fässler
D051339:Actin Depolymerizing Factors / Q000378:metabolism*; D000818:Animals; D003598:Cytoskeletal Proteins; D017615:Enteric Nervous System; D016023:Integrins / Q000502:physiology*; D009432:Neural Crest; D009687:Nuclear Proteins / Q000378:metabolism*; D054645:Protein Phosphatase 1 / Q000378:metabolism*; D015398:Signal Transduction
D051339:Actin Depolymerizing Factors; D003598:Cytoskeletal Proteins; D016023:Integrins; D009687:Nuclear Proteins; C522018:Phactr4 protein, mouse; D054645:Protein Phosphatase 1