WormMine: ExpressionPattern Expr845

• Pattern: Robust GFP fluorescence was observed in cells comprising the intestine. CKA1 promoter activity was also evident in pharyngeal cells and the anal sphincter and depressor muscles. Robust CKA1 promoter activity was evident in both the large nuclei of (~10) intestinal (gut) cells and smaller nuclei located in anal depressor and sphincter muscle cells and cells of the intestinal-rectal valve. A modest level of CKA1 gene transcription was detected in pharyngeal muscle nuclei. Similar patterns of CKA1 gene transcription were obtained for both adults and larvae in several experiments.
• Primary Identifier: Expr845
• Remark: T03D8.1 = cka-1 --WS59.

7 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
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
type of cells that make up muscle layers in the pharynx.	pharyngeal muscle cell		WBbt:0005451
a single, H-shaped cell which lies just above the anus and connects the roof of the anal canal to the dorsal bodywall; its contractions act to increase the size of the anal opening by lifting the roof of the rectum and hence facilitate expulsion of intestinal contents.	anal depressor muscle	dilator muscle	WBbt:0004292
a saddle-shaped muscle cell that encircles the intestinal-rectal valve	anal sphincter muscle	lineage name: ABprpppppap	WBbt:0005798
Intestino-rectal valve	virL	lineage name: ABprpappppp	WBbt:0004511
Intestino-rectal valve	virR	lineage name: ABprpappppa	WBbt:0004510
cell that forms intestinal-rectal valve.	rectal valve cell	intestinal-rectal valve cell	WBbt:0005797

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00003830	num-1	T03D8.1	Caenorhabditis elegans

5 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
	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
	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