Adhesion plaque protein, talin, is phosphorylated in vivo in chicken embryo fibroblasts exposed to the tumor-promoting phorbol ester

Journal ArticleTalin is a high molecular weight phosphoprotein that is localized at adhesion plaques. We have found that talin phosphorylation increases 3.0-fold upon exposure of chicken embryo fibroblasts to the tumor-promoting phorbol ester, phorbol 12-myristate 13-acetate

CRP1, a LIM domain protein implicated in muscle differentiation, interacts with α-actinin

Journal ArticleMembers of the cysteine-rich protein (CRP) family are LIM domain proteins that have been implicated in muscle differentiation. One strategy for defining the mechanism by which CRPs potentiate myogenesis is to characterize the repertoire of CRP binding partners

Genetic ablation of zyxin causes Mena/VASP mislocalization, increased motility, and deficits in actin remodeling

Journal ArticleFocal adhesions are specialized regions of the cell surface where integrin receptors and associated proteins link the extracellular matrix to the actin cytoskeleton. To define the cellular role of the focal adhesion protein zyxin, we characterized the phenotype of fibroblasts in which the zyxin gene was deleted by homologous recombination

Conserved LIM protein that affects muscular adherens junction integrity and mechanosensory function in Caenorhabditis elegans

Journal ArticleWe describe here the molecular and functional characterization of the Caenorhabditis elegans unc-97 gene, whose gene product constitutes a novel component of muscular adherens junctions. UNC-97 and homologues from several other species define the PINCH family, a family of LIM proteins whose modular composition of five LIM domains implicates them as potential adapter molecules

Purification and characterization of an α-actinin-binding PDZ-LIM protein that is up-regulated during muscle differentiation

Journal Articleα-Actinin is required for the organization and function of the contractile machinery of muscle. In order to understand more precisely the molecular mechanisms by which α-actinin might contribute to the formation and maintenance of the contractile apparatus within muscle cells, we performed a screen to identify novel α-actinin binding partners present in chicken smooth muscle cells. In this paper, we report the identification, purification, and characterization of a 36-kDa smooth muscle protein (p36) that interacts with α-actinin

Characterization of the interaction between zyxin and members of the Ena/Vasodilator-stimulated Phosphoprotein family of proteins

Journal ArticleZyxin contains a proline-rich N-terminal domain that is similar to the C-terminal domain in the ActA protein of the bacteria, Listeria monocytogenes. We screened the entire amino acid sequence of human zyxin for Menainteracting peptides and found that, as with ActA, proline-rich sequences were the sole zyxin sequences capable of binding to Ena/vasodilator-stimulated phosphoprotein (VASP) family members in vitro

Molecular characterization of human zyxin

Journal ArticleZyxin is a component of adhesion plaques that has been suggested to perform regulatory functions at these specialized regions of the plasma membrane. Here we describe the isolation and characterization of cDNAs encoding human and mouse zyxin

Cytoskeleton-associated PDZ-LIM protein, ALP, acts on serum response factor activity to regulate muscle differentiation

Journal ArticleIn this report, an antisense RNA strategy has allowed us to show that disruption of ALP expression affects the expression of the muscle transcription factors myogenin and MyoD, resulting in the inhibition of muscle differentiation. Introduction of a MyoD expression construct into ALP-antisense cells is sufficient to restore the capacity of the cells to differentiate, illustrating that ALP function occurs upstream of MyoD

Members of the zyxin family of LIM proteins interact with members of the p130cas family of signal transducers

Journal ArticleIntegrin binding to extracellular matrix proteins induces formation of signaling complexes at focal adhesions. Zyxin co-localizes with integrins at sites of cellsubstratum adhesion and is postulated to serve as a docking site for the assembly of multimeric protein complexes involved in regulating cell motility

Kindler syndrome protein is regulated by Transforming Growth Factor-β and involved in integrin-mediated adhesion

Journal ArticleTransforming growth factor-β1 (TGF-β1) contributes to tumor invasion and cancer progression by increasing the motility of tumor cells. To identify genes involved in TGF-β-mediated cell migration, the transcriptional profiles of human mammary epithelial cells (HMEC) treated with TGF-β were compared with untreated cells by cDNA microarray analysis