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WormBase Tree Display for Expr_pattern: Expr3952

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Name Class

Expr3952Expression_ofGeneWBGene00001130
Reflects_endogenous_expression_ofWBGene00001130
Expression_dataLife_stageWBls:0000024
WBls:0000038
WBls:0000027
WBls:0000035
WBls:0000041
Anatomy_termWBbt:0003681Certain
WBbt:0005733Certain
WBbt:0005772Partial
WBbt:0005828Certain
TypeReporter_gene
PatternIn larvae and adult hermaphrodites, the expression of a Pdyn-1 dyn-1::gfp reporter was observed in all previously described dyn-1-expressing tissues, including gonadal sheath cells. In embryos, many cell types express Pdyn-1 dyn-1::gfp, including known engulfing cells such as the hypodermal cells, intestinal precursor cells, and the entire pharyngeal primordium.
PictureWBPicture0000009998
RemarkSite of action: To determine whether DYN-1 activity is required in the engulfing cell or the dying cell for the removal of cell corpses, dyn-1 cDNA was expressed under the control of the engulfing cell-specific promoter Pced-1 or the dying cell-specific promoter Pegl-1 and authors examined the ability of these transgenes to promote engulfment. Pced-1 dyn-1::gfp rescued the Ced phenotype of dyn-1(n4039) to the same extent as Pdyn-1 dyn-1cDNA. In contrast, Pegl-1 dyn-1::gfp did not exhibit significant rescuing activity, although it produced a GFP signal in dying cells. These results indicate that the dyn-1 activity in engulfing cells, but not in dying cells, is sufficient for the rescue of the Ced phenotype. dyn-1 thus primarily functions in engulfing cells for the removal of apoptotic cells.
ReferenceWBPaper00027659
TransgeneWBTransgene00028991