The paxillin LD motifs

FEBS Lett. 2002 Feb 20;513(1):114-8. doi: 10.1016/s0014-5793(01)03244-6.


Adapter/scaffold proteins, through their multidomain structure, perform a fundamental role in facilitating signal transduction within cells. Paxillin is a focal adhesion adapter protein implicated in growth factor- as well as integrin-mediated signaling pathways. The amino-terminus of paxillin contains five leucine-rich sequences termed LD motifs. These paxillin LD motifs are highly conserved between species as well as within the paxillin superfamily. They mediate interactions with several structural and regulatory proteins important for coordinating changes in the actin cytoskeleton associated with cell motility and cell adhesion as well as in the regulation of gene expression.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Binding Sites
  • Cell Adhesion Molecules / chemistry
  • Cell Adhesion Molecules / metabolism
  • Cytoskeletal Proteins / chemistry*
  • Cytoskeletal Proteins / metabolism
  • Humans
  • Molecular Sequence Data
  • Paxillin
  • Phosphoproteins / chemistry*
  • Phosphoproteins / metabolism
  • Protein Structure, Secondary
  • Sequence Alignment
  • Sequence Homology, Amino Acid


  • Cell Adhesion Molecules
  • Cytoskeletal Proteins
  • PXN protein, human
  • Paxillin
  • Phosphoproteins