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WormBase Tree Display for Expr_pattern: Expr3125

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Name Class

Expr3125Expression_ofGeneWBGene00003553
Reflects_endogenous_expression_ofWBGene00003553
Expression_dataLife_stageWBls:0000024
WBls:0000038
WBls:0000027
WBls:0000035
WBls:0000041
Anatomy_termWBbt:0004685Certain
WBbt:0005733Partial
WBbt:0005800Certain
WBbt:0008182Certain
TypeReporter_gene
PatternTo test whether peak NAS-37 expression coincided with ecdysis in each larval stage, a PEST protein degradation signal was fused onto the C-terminus of the pWD90 GFP construct. This sequence increases protein turnover and should rapidly eliminate GFP fluorescence after expression has stopped. As expected, bright fluorescence was observed in the Hyp5 cell at the anterior tip of the animal and in the rectal epithelial cells at ecdysis. After the molt, nas-37 expression was very low in all cells, although expression continued in Hyp5 and the rectal epithelial cells. GFP expression driven by the nas-37 promoter (Pnas-37::GPF) began to rise about 6 hours before ecdysis, with peak nas-37 expression in hypodermal cells (and seam cells exclusively in the L4 stage) about 4 hours before each molt.
PictureWBPicture0000007602
ReferenceWBPaper00024579
TransgeneWBTransgene00000335