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The RPE65 protein of the retinal pigment epithelium (RPE) enables the conversion of retinyl esters to the visual pigment chromophore 11‐cis retinal. Fresh 11‐cis retinal is generated from retinyl esters following photoisomerization of the visual pigment chromophore to all‐trans during light detection. Large amounts of esters accumulate in Rpe65−/− mice, indicating their continuous formation when 11‐...
Interleukin-2 (IL-2)-induced transcription of the J chain gene was used as a model for analyzing cytokine regulation during B cell development. To determine whether IL-2 signals are targeted to a J chain gene enhancer as well as to its promoter, the sequences flanking the J chain gene were first examined for DNase I hypersensitivity. Of six sites identified, two strong ones, 7.5 kb upstream of the...
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