WormMine: ExpressionPattern Expr1979

• Pattern: From late embryogenesis onwards, expression was observed in two rows of fourteen cells. The identity of these cells as the hypodermal seam cells was confirmed by immunohistochemistry using the MH27 antibody. Starting at the L3L4 stages, a dynamic pattern of expression was seen in the vulval precursor cells, and persisted into adulthood. Expression was also observed in at least six additional posterior cells that remain to be identified. No expression was observed in the gonad, presumably due to the previously described silencing of transgenes in the germline. In adult males, as well as expression in the seam cells, a specific pattern of expression was observed in the tail, in a number of unidentified cells. The protein is expressed almost ubiquitously in the embryos and the pattern becomes more and more specific during development.
• Primary Identifier: Expr1979
• Subcellular Localization: In all positive cells, fluorescence was observed in the nucleus.

9 Anatomy Terms

Definition	Name	Synonym	Primary Identifier
Epidermal layer.	hypodermis	epidermis	WBbt:0005733
a group of hypodermal cells that lie along the apical midline of the hypodermis, at the extreme left and right sides between nose and tail	seam cell	lateral hypodermis	WBbt:0005753
descendent cell of post-embryonic blast cell P5, posterior, in hermaphrodite.	P5.p hermaphrodite		WBbt:0008121
descendent cell of post-embryonic blast cell P4, posterior, in hermaphrodite.	P4.p hermaphrodite		WBbt:0008117
descendent cell of post-embryonic blast cell P3, posterior in hermaphrodite.	P3.p hermaphrodite		WBbt:0008112
	P8.p hermaphrodite		WBbt:0008133
	P7.p hermaphrodite		WBbt:0008129
	P6.p hermaphrodite		WBbt:0008125
cells or anatomical parts specific to the male sex	male-specific anatomical entity		WBbt:0005757

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00004781	set-1	T26A5.7	Caenorhabditis elegans

6 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
	The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003