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Described is method for introducing a desired nucleic acid into a eukaryotic host cell, said method comprising a) admixing the desired nucleic acid, a mono- and/or divalent metal cation and a eukaryotic host cell lacking a cell wallb) incubating the mixtur ...
A variety of extracellular ligands and pathogens interact with raft domains in the plasma membrane of eukaryotic cells. In this study, we examined the role of lipid rafts and raft-associated glycosylphosphatidylinositol (GPI)-anchored proteins in the proce ...
A general method for the specific and covalent labeling of fusion proteins in vivo is described. The approach is based on the unusual mechanism of the human DNA repair protein O6-alkylguanine-DNA alkyl-transferase, which irreversibly transfers an alkyl gro ...
Biosynthesis of glycosylphosphatidylinositol (GPI)-anchored proteins involves the action of a GPI trans-amidase, which replaces the C-terminal GPI signal sequence (GPI-SS) of the primary translation product with a preformed GPI lipid. The transamidation de ...
Cysteine-dependent aspartic proteases (caspases) are a family of enzymes which play a crucial role in apoptosis. Caspases accumulate in eukaryotic cells in the form of low-activity proenzyme precursors. Proteolytic cleavage of specific sites triggers confo ...
UMR 1931, CNRS and Laboratoires Goemar, Station Biologique, 29680 Roscoff, France. Marine algae encompass lineages that diverged about one billion years ago. Recent results suggest that they feature natural immunity traits that are conserved, as well as ot ...
We have cloned Pfnek-1, a gene encoding a novel protein kinase from the human malaria parasite Plasmodium falciparum. This enzyme displays maximal homology to the never-in-mitosis/Aspergillus (NIMA)/NIMA-like kinase (Nek) family of protein kinases, whose m ...
Cultured myofibroblasts are characterized by stress fibers, containing alpha-smooth muscle actin (alpha-SMA) and by supermature focal adhesions (FAs), which are larger than FAs of alpha-SMA-negative fibroblasts. We have investigated the role of alpha-SMA f ...
The interaction of a microbial pathogen with its host is a highly dynamic process shaped by evolution. Understanding cellular responses to microbial products is essential for a complete understanding of virulence. Similarly, studies aimed at determining ho ...
The intraerythrocytic asexual cycle of the malarial parasite is complex and atypical: during schizogony the parasite undergoes multiple rounds of DNA replication and asynchronous nuclear division without cytokinesis. This cell cycle deviates from the class ...