WormMine: ExpressionPattern Expr11279

• Pattern: Both pe39 and pe41 enhanced expression specifically in pharyngeal muscles. Transgenic lines bearing pe39:: pes-10::lacZ and pe41::pes-10::lacZ reporters exhibited robust reporter gene expression in the m3, m4, m5, and m7 pharyngeal muscles, cells that express the endogenous ceh-22 gene. In addition,the pe41::pes-10::lacZ was also expressed in one non muscle cell in the pharynx (provisionally identified as a g1 gland), the pharyngeal-intestinal valve cells, and a pair of neurons outside the pharynx. The onset of pharyngeal-galactosidase expression was as early as the comma stage of embryogenesis, and expression persisted in the pharyngeal muscles through the remainder of embryogenesis and larval development. Both the spatial and temporal specificity of the pe39 enhancer in particular was nearly indistinguishable from that of the full-length proximal enhancer.
• Primary Identifier: Expr11279
• Remark: Feature : "ceh-22.pe39_pe41"

8 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
A group of six equivalent cells forms a tightly constructed `valve` that links the posterior bulb of the pharynx to the anterior four cells of the intestine. These six cells comprise a small epithelial channel with a cuticular lining in continuity with the pharyngeal cuticle and link the lumen of the pharynx to the large lumen of the anterior intestine.	pharyngeal-intestinal valve	cardia	WBbt:0005767
type of cells that make up muscle layers in the pharynx.	pharyngeal muscle cell		WBbt:0005451
Major cell type of nervous tissue, specialized for transmission of information in the form of patterns of impulses.	neuron	neurone	WBbt:0003679
seventh pharyngeal muscle cell layer	pm7	m7	WBbt:0003721
third pharyngeal muscle cell layer	pm3	M3	WBbt:0003740
fifth pharyngeal muscle cell layer	pm5	M5	WBbt:0003737
fourth pharyngeal muscle cell layer	pm4	M4	WBbt:0003739
Postembryonic blast cell, excretory socket in embryo	G1	lineage name: ABprpaaaapa	WBbt:0004780

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00000445	ceh-22	F29F11.5	Caenorhabditis elegans

6 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The C. elegans life stage spanning 620-800min(hatch) after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. A stage after elongation is over. The last stage of embryogenesis. Also called pre-hatched embryo, late embryo or morphogenetic embryo.		fully-elongated embryo Ce	WBls:0000021
	A developmental life stage of the nematode Caenorhabditis elegans that occurs from egg hatching until adulthood.		larva Ce	WBls:0000023
	The C. elegans life stage spanning 520-620min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo is elongated and tripple fold. A stage between 2-fold embryo and fully-elongated embryo. Also called pretzel embryo or pretzel stage.		3-fold embryo Ce	WBls:0000020
	The C. elegans life stage spanning 420-460min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo is elongated and fold back 50%. A stage between comma embryo and 2-fold embryo.		1.5-fold embryo Ce	WBls:0000018
	The C. elegans life stage spanning 390-420min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo looks like a comma. A stage between bean embryo and 1.5-fold embryo.		comma embryo Ce	WBls:0000017
	The C. elegans life stage spanning 460-520min after first cleavage at 20 Centigrade. Cell number remains at ~560 cells, with some new cells generated and some cells go through programmed cell death. The shape of embryo is elongated and double fold. A stage between 1.5-fold embryo and 3-fold embryo.		2-fold embryo Ce	WBls:0000019