Nucleocytoplasmic functions of the PDZ-LIM protein family: new insights into organ development.
Recent work on the PDZ-LIM protein family has revealed that it has important activities at the cellular level, mediating signals between the nucleus and the cytoskeleton, with significant impact on organ development. We review and integrate current knowledge about the PDZ-LIM protein family and propose a new functional role, sequestering nuclear factors in the cytoplasm. Characterized by their PDZ and LIM domains, the PDZ-LIM family is comprised of evolutionarily conserved proteins found throughout the animal kingdom, from worms to humans. Combining two functional domains in one protein, PDZ-LIM proteins have wide-ranging and multi-compartmental cell functions during development and homeostasis. In contrast, misregulation can lead to cancer formation and progression. New emerging roles include interactions with integrins, T-box transcription factors, and receptor tyrosine kinases. Facilitating the assembly of protein complexes, PDZ-LIM proteins can act as signal modulators, influence actin dynamics, regulate cell architecture, and control gene transcription.
Krcmery
Jennifer
J
Department of Pediatrics, Northwestern University, The Feinberg School of Medicine, Children's Memorial Research Center, Chicago, IL 60614, USA.
Camarata
Troy
T
Kulisz
Andre
A
Simon
Hans-Georg
HG
D048868:Adaptor Proteins, Signal Transducing / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D000818:Animals; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D002467:Cell Nucleus / Q000378:metabolism*; D003593:Cytoplasm / Q000378:metabolism*; D003598:Cytoskeletal Proteins; D018398:Homeodomain Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D060588:LIM Domain Proteins; D010802:Phylogeny; D017434:Protein Structure, Tertiary / Q000235:genetics / Q000502:physiology; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism / Q000502:physiology
D048868:Adaptor Proteins, Signal Transducing; D002352:Carrier Proteins; D003598:Cytoskeletal Proteins; D018398:Homeodomain Proteins; D047908:Intracellular Signaling Peptides and Proteins; D060588:LIM Domain Proteins; C116184:LMO7 protein, human; C485639:Ldb3 protein, mouse; C512485:PDLIM5 protein, human; C484381:Pdlim7 protein, mouse; D014157:Transcription Factors