Title: LPP, an actin cytoskeleton protein related to zyxin, harbors a nuclear export signal and transcriptional activation capacity
Authors: Petit, Marleen *
Fradelizi, J *
Golsteyn, R M
Ayoubi, T A
Menichi, B
Louvard, D
Van de Ven, Willem
Friederich, E # ×
Issue Date: Apr-2000
Series Title: Molecular biology of the cell vol:11 issue:1 pages:117-29
Abstract: The LPP gene is the preferred translocation partner of the HMGIC gene in a subclass of human benign mesenchymal tumors known as lipomas. Here we have characterized the LPP gene product that shares 41% of sequence identity with the focal adhesion protein zyxin. LPP localizes in focal adhesions as well as in cell-to-cell contacts, and it binds VASP, a protein implicated in the control of actin organization. In addition, LPP accumulates in the nucleus of cells upon treatment with leptomycin B, an inhibitor of the export factor CRM1. The nuclear export of LPP depends on an N-terminally located leucine-rich sequence that shares sequence homology with well-defined nuclear export signals. Moreover, LPP displays transcriptional activation capacity, as measured by GAL4-based assays. Altogether, these results show that the LPP protein has multifunctional domains and may serve as a scaffold upon which distinct protein complexes are assembled in the cytoplasm and in the nucleus.
ISSN: 1059-1524
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Human Genetics - miscellaneous
Associated Laboratories - miscellaneous (-)
* (joint) first author
× corresponding author
# (joint) last author

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