WormMine: ExpressionPattern Expr39

• Pattern: All hatched stages exhibit expression in three cells in the anal region of the worm. One is positioned directly over the anal duct in the intestino-rectal region, and has thus been identified as the anal sphincter cell. The remaining two are symmetrically placed on the lateral ventral surfaces of the posterior intestine, a position consistent with that of the two intestinal muscles. These cells form part of the machinery necessary for the process of defecation in C.elegans
• Primary Identifier: Expr39

2 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
a saddle-shaped muscle cell that encircles the intestinal-rectal valve	anal sphincter muscle	lineage name: ABprpppppap	WBbt:0005798
intestinal muscle cell, attach to intestine and body wall anterior to anus	intestinal muscle	stomato-intestinal muscle	WBbt:0005796

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00011299	ikke-1	R107.4	Caenorhabditis elegans

5 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The second stage larva. At 25 Centigrade, it ranges 25.5-32.5 hours after fertilization, 11.5-18.5 hours after hatch.		L2 larva Ce	WBls:0000027
	The fourth stage larva. At 25 Centigrade, it ranges 40-49.5 hours after fertilization, 26-35.5 hours after hatch.		L4 larva Ce	WBls:0000038
	The first stage larva. At 25 Centigrade, it ranges 14-25.5 hours after fertilization, 0-11.5 hours after hatch.		L1 larva Ce	WBls:0000024
	The stage that begins when a C.elegans individual is fully-developed and has reached maturity.		adult Ce	WBls:0000041
	The third stage larva. At 25 Centigrade, it ranges 32.5-40 hours after fertilization, 18.5-26 hours after hatch.		L3 larva Ce	WBls:0000035