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Lactase-phlorizin hydrolase (LPH) and sucrase-isomaltase (SI) are enterocyte-specific gene products. The identification of regulatory cis-elements in the promoter of these two genes has enabled us to carry out comparative studies of the corresponding intestinal-specific nuclear factors (NF-LPH1 and SIF1-BP). Electrophoretic mobility shift assays demonstrated that the two nuclear factors compete for...
The sequence of a cDNA clone (2.82 kbp) of rabbit intestinal aminopeptidase N (CD 13) is reported. Using the corresponding anti-sense RNA probe, the distribution of aminopeptidase N mRNA along the crypt/villus axis of the rabbit small intestine was studied by in situ hybridization. The aminopeptidase N gene is expressed along the whole length of the villus with a maximum at its base. Expression was...
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