We noted a striking difference in GFP expression between the functional PCK-2::GFP translational fusion and the Ppck-2 transcriptional reporter: while the PCK-2::GFP translational fusion is constitutively expressed, the pck-2 promoter-only transcriptional reporter is expressed solely in the intestine and only under food limitation conditions.
Primary Identifier
Expr15203
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1 Anatomy Terms
Definition
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Synonym
Primary Identifier
A chain of very large cuboidal cells forming a wide central lumen in which food arrives from the posterior pharynx, is digested, and from which waste products proceed to the rectum. Intestinal rings form in groups of two and four cells surrounding the common lumen; thus the epithelium is only one cell deep at any point, with neighboring cells firmly secured to their neighbors by apical adherens junctions. These cells have very large nuclei and many large vacuoles, yolk granules, and other inclusions; the latter increase in number and electron density as the animal ages.
