WormMine: ExpressionPattern Expr16176

• Pattern: As for IRK-1, IRK-2 is also expected by be targeted to the plasma membrane. The most notable cells labeled by irk-2 promoter expression were neurons of the anterior ganglia, the pharyngeal intestinal valve cell, and the posterior intestine, where again clear basolateral plasma membrane targeting can be observed. In adults, the spermatheca and the uterus were prominently labeled, and the IRK-2 fusion protein resided in the plasma membrane. It is interesting that irk gene expression was notably absent in muscle and hypodermal cells.
• Primary Identifier: Expr16176

4 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
an accordion-like tube that contains sperm and is the site of oocyte fertilization.	spermatheca		WBbt:0005319
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.	intestine	gut	WBbt:0005772
The organ in which the eggs are developed and protected until laid.	uterus		WBbt:0006760
cell that makes up the pharyngeal-intestinal valve.	pharyngeal-intestinal valve cell		WBbt:0007848

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00002150	irk-2	M02A10.2	Caenorhabditis elegans

1 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The stage that begins when a C.elegans individual is fully-developed and has reached maturity.		adult Ce	WBls:0000041