Angélica Limón

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Expression studies on the aldA gene encoding aldehyde dehydrogenase in Escherichia coli showed induction by two types of molecule (hydroxyaldehydes and 2-oxoglutarate), carbon catabolite repression and respiration dependence. Promoter deletion analysis showed that the proximal operator, which includes inducer-regulator complex and catabolite repression(More)
For over 30 years it has been established that the Entamoeba histolytica protozoan included two biologically and genetically different species, one with a pathogenic phenotype called E. histolytica and the other with a non-pathogenic phenotype called Entamoeba dispar. Both of these amoebae species can infect humans. E. histolytica has been considered as a(More)
Entamoeba histolytica calreticulin (EhCRT) is remarkably immunogenic in humans (90–100% of invasive amoebiasis patients). Nevertheless, the study of calreticulin in this protozoan is still in its early stages. The exact location, biological functions, and its role in pathogenesis are yet to be fully understood. The aim of the present work is to determine(More)
An open reading frame has been found downstream of the ald gene at 31 min in the Escherichia coli chromosome and has been designated gapC because of its high similarity with gapA (min 39, encoding glyceraldehyde-3-phosphate dehydrogenase), and with gapB (min 62, a gene with high similarity to gapA, encoding erythrose-4-phosphate dehydrogenase). The gapC(More)
Aldehyde dehydrogenase, encoded by the aldA gene in Escherichia coli, is inactive in nitrosoguanidine induced mutant strain ECL40 and temperature-sensitive in spontaneous mutant strain JA104. Both mutants were proven, by complementation experiments, to have a functional aldA regulator and promoter. In spite of no immunodetection of the aldA product, its(More)
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