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Mostrando ítems 1-10 de 12
Artículo
Cell type-dependent variations in the subcellular distribution of alpha-mannosidase I and II
(Rockefeller University Press, 1993)
alpha-mannosidases I and II (Man I and II) are resident enzymes of the Golgi complex involved in oligosaccharide processing during N-linked glycoprotein biosynthesis that are widely considered to be markers of the cis- and ...
Artículo
Presence of terminal N-acetylgalactosamine residues in subregions of the endoplasmic reticulum is influenced by cell differentiation in culture
(The American Society for Biochemistry and Molecular Biology, 1991)
Using Helix pomatia lectin as a specific probe for terminal, nonreducing N-acetylgalactosamine residues, glycoprotein precursors bearing newly initiated O-linked oligosaccharides have been localized in the lumen of the ...
Artículo
Trimeric G proteins modulate the dynamic interaction of PKAII with the Golgi complex
(The Company of Biologists Ltd, 1999)
The Golgi complex represents a major subcellular location of protein kinase A (PKA) concentration in mammalian cells where it has been previously shown to be involved in vesicle-mediated protein transport processes. We ...
Artículo
Protein kinase A activity is required for the budding of constitutive transport vesicles from the trans-Golgi network
(National Academy of Sciences of the USA, 1997)
We have examined the role played by protein kinase A (PKA) in vesicle-mediated protein transport from the trans-Golgi network (TGN) to the cell surface. In vivo this transport step was inhibited by inhibitors of PKA catalytic ...
Artículo
La utilización de bases de datos como herramientas de evaluación
(Universidad de Sevilla. SAV, 1996)
En este artículo se comprueba la validez de utilización de las bases de datos para elaborar pruebas objetivas. Al comparar distintos grupos no se han encontrado diferencias estadísticamente significativas entre los alumnos ...
Artículo
An experimental approach to the study of ag-nor proteins
(Japan Society Of Histochemistry and Cytochemistry, 1994)
Purified polyclonal antibodies have been obtained against 100 KD and 36 KD Ag-NOR proteins. These two antibodies have been used to study the immunolocalization of both proteins on different cell types subjected to various ...
Artículo
Trimeric G proteins regulate the cytosol-induced redistribution of Golgi enzymes into the endoplasmic reticulum
(Company of Biologists Ltd, 1995)
Streptolysin O-permeabilized cells incubated with a high concentration (5-10 mg/ml) of cytosolic proteins and ATPgenerating system exhibit redistribution into the endoplasmic reticulum (ER) of Golgi integral proteins ...
Artículo
A Regulatory Role for cAMP-dependent Protein Kinase in Protein Traffic along the Exocytic Route
(The American Society for Biochemistry and Molecular Biology, 1996)
The influence of protein kinase A activity on transport of newly synthesized vesicular stomatitis virus G glycoprotein along the exocytic pathway was examined. Transport of vesicular stomatitis virus G glycoprotein ...
Artículo
Characterization and immunolocalization of RNA polymerase I transcription factor UBF with anti-NOR serum in protozoa, higher plant and vertebrate cells
(The Company of BiologistsCompany of Biologists, 1992)
We have used anti-NOR serum from a patient with rheumatoid arthritis, to study its reactivity on different phylogenetically separated species such as protozoa, higher plants, birds and mammals. The biochemical characteristics ...
Artículo
Efectos de la ranitidina sobre células parietales en regeneración : Estudio estereológico
(Sociedad Española de Patología Digestiva, 1990)
In this work, we have carried out a stereological and morphological study in order to verify the effects of Ranitidine on regenerating parietal cells. We have used a control group and operated or non-operated groups ...