Francisco Rivero

Molecular and functional characterization of a Rho GDP dissociation inhibitor in the filamentous fungus Tuber borchii (2008)

Menotta, Michele, Amicucci, Antonella, Basili, Giorgio, Polidori, Emanuela, Stocchi, Vilberto, Rivero, Francisco

Abstract Background Small GTPases of the Rho family function as tightly regulated molecular switches that govern important cellular functions in eukaryotes. Several families of regulatory proteins...

GxcDD, a putative RacGEF, is involved in Dictyosteliumdevelopment (2007)

Mondal, Subhanjan, Neelamegan, Dhamodharan, Rivero, Francisco, Noegel, Angelika A

Abstract Background Rho subfamily GTPases are implicated in a large number of actin-related processes. They shuttle from an inactive GDP-bound form to an active GTP-bound form. This reaction is...

Obtención y caracterización de harinas compuestas de endospermo - germen de maíz y su uso en la preparación de arepas (1999)

HERNÁNDEZ,Blanca D., GUERRA,Marisa J., RIVERO,Francisco

La arepa, pan de maíz, es un producto elaborado a partir de harina precocida de endospermo de maíz, de elevado consumo en Colombia y Venezuela. Al obtener la harina de endospermo queda como...

Efecto del fraccionamento sobre las caracteristicas del germen de maiz desgrasado (1999)

HERNÁNDEZ,Blanca D., GUERRA,Marisa J., RIVERO,Francisco

El germen de maíz desgrasado (GMD) es un subproducto que se obtiene al elaborar harina cruda o precocida y extraer el aceite de maíz. Este subproducto se usa exclusivamente en la alimentación...

Polinomios de Bernoulli y números de Bernoulli / Glauco A. López D. (1998)

López Díaz, Glauco Alfredo, Rivero, Francisco

Mecanografiado Tesis (Magister Scientiae)-- Universidad de Los Andes, Facultad de Ciencias, Postgrado de Matemáticas, Mérida, 1998 Incluye bibliografía

RacF1, a Novel Member of the Rho Protein Family in Dictyostelium discoideum, Associates Transiently with Cell Contact Areas, Macropinosomes, and Phagosomes

Rivero, Francisco, Albrecht, Richard, Dislich, Heidrun, Bracco, Enrico, Graciotti, Laura, Bozzaro, Salvatore, ...

Using a PCR approach we have isolated racF1, a novel member of the Rho family in Dictyostelium. The racF1 gene encodes a protein of 193 amino acids and is constitutively expressed throughout the...

The Dictyostelium discoideum family of Rho-related proteins

Rivero, Francisco, Dislich, Heidrun, Glöckner, Gernot, Noegel, Angelika A.

Taking advantage of the ongoing Dictyostelium genome sequencing project, we have assembled >73 kb of genomic DNA in 15 contigs harbouring 15 genes and one pseudogene of Rho-related proteins....

Defects in cytokinesis, actin reorganization and the contractile vacuole in cells deficient in RhoGDI

Rivero, Francisco, Illenberger, Daria, Somesh, Baggavalli P., Dislich, Heidrun, Adam, Nicola, Meyer, Ann-Kathrin

Rho GDP-dissociation inhibitors (RhoGDIs) modulate the cycling of Rho GTPases between active GTP-bound and inactive GDP-bound states. We identified two RhoGDI homologues in Dictyostelium. GDI1 shares...

Villidin, a Novel WD-repeat and Villin-related Protein from Dictyostelium, Is Associated with Membranes and the Cytoskeleton

Gloss, Annika, Rivero, Francisco, Khaire, Nandkumar, Müller, Rolf, Loomis, William F., Schleicher, Michael, ...

Villidin is a novel multidomain protein (190 kDa) from Dictyostelium amoebae containing WD repeats at its N-terminus, three PH domains in the middle of the molecule, and five gelsolin-like segments...

The Human Papillomavirus Type 8 E2 Protein Suppresses β4-Integrin Expression in Primary Human Keratinocytes

Oldak, Monika, Smola, Hans, Aumailley, Monique, Rivero, Francisco, Pfister, Herbert, Smola-Hess, Sigrun

Human papillomaviruses (HPVs) infect keratinocytes of skin and mucosa. Homeostasis of these constantly renewing, stratified epithelia is maintained by balanced keratinocyte proliferation and terminal...

Rac regulation of chemotaxis and morphogenesis in Dictyostelium

Park, Kyung Chan, Rivero, Francisco, Meili, Ruedi, Lee, Susan, Apone, Fabio, Firtel, Richard A

Chemotaxis requires localized F-actin polymerization at the site of the plasma membrane closest to the chemoattractant source, a process controlled by Rac/Cdc42 GTPases. We identify Dictyostelium...

Dictyostelium PAKc Is Required for Proper Chemotaxis

Lee, Susan, Rivero, Francisco, Park, Kyung Chan, Huang, Emerald, Funamoto, Satoru, Firtel, Richard A.

We have identified a new Dictyostelium p21-activated protein kinase, PAKc, that we demonstrate to be required for proper chemotaxis. PAKc contains a Rac-GTPase binding (CRIB) and autoinhibitory...

Cellular Distribution and Functions of Wild-Type and Constitutively Activated Dictyostelium PakBV⃞

De La Roche, Marc, Mahasneh, Amjad, Lee, Sheu-Fen, Rivero, Francisco, Côté, Graham P.

Dictyostelium PakB, previously termed myosin I heavy chain kinase, is a member of the p21-activated kinase (PAK) family. Two-hybrid assays showed that PakB interacts with Dictyostelium Rac1a/b/c,...

RacG Regulates Morphology, Phagocytosis, and Chemotaxis▿ †

Somesh, Baggavalli P., Vlahou, Georgia, Iijima, Miho, Insall, Robert H., Devreotes, Peter, Rivero, Francisco

RacG is an unusual member of the complex family of Rho GTPases in Dictyostelium. We have generated a knockout (KO) strain, as well as strains that overexpress wild-type (WT), constitutively active...

Interaptin, an Actin-binding Protein of the α-Actinin Superfamily in Dictyostelium discoideum, Is Developmentally and cAMP-regulated and Associates with Intracellular Membrane Compartments

Rivero, Francisco, Kuspa, Adam, Brokamp, Regine, Matzner, Monika, Noegel, Angelika A.

In a search for novel members of the α-actinin superfamily, a Dictyostelium discoideum genomic library in yeast artificial chromosomes (YAC) was screened under low stringency conditions using the...

PtdIns(4,5)P-restricted plasma membrane localization of FAN is involved in TNF-induced actin reorganization

Haubert, Dirk, Gharib, Nina, Rivero, Francisco, Wiegmann, Katja, Hösel, Marianna, Krönke, Martin, ...

The WD-repeat protein factor associated with nSMase activity (FAN) is a member of the family of TNF receptor adaptor proteins that are coupled to specific signaling cascades. However, the precise...