WormMine: ExpressionPattern Expr3123

• Pattern: Animals transformed with mfb-1p::gfp exhibit GFP fluorescence in the late embryo and through the larval and adult stages, strong expression in the head and tail ganglia, the ventral nerve cord, the tail hypodermal cells and the intestine, weak expression in some lateral neurones, seam cells and body wall muscles in some lines, and no expression in the pharynx and distal tip cells. MFB-1::GFP was prominently detected in some head and tail ganglia, weakly in the ventral nerve cord, but little or not at all in the hypodermis, intestine, seam cells and muscles.
• Primary Identifier: Expr3123
• Subcellular Localization: In the head and tail ganglia, MFB-1::GFP was preferentially localized to the nuclei.

12 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
a large process bundle that runs along the vental mid-line extending from the ventral region of the nerve ring.	ventral nerve cord	ventral cord	WBbt:0005829
Longitudinal bands of muscle cells surrounding animal body, with one band running in each quadrant of the body, regulated contraction and relaxation of these muscles cause locomotion.	body wall musculature	body muscle	WBbt:0005813
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
neuron with its cell body situated in the tail, posterior to rectum.	tail neuron		WBbt:0006759
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
Tail ventral hypodermis	hyp10	lineage name: ABplppppppp	WBbt:0004378
Tail ventral hypodermis, 8th hypodermis cell	hyp8		WBbt:0004381
Tail ventral hypodermis, 9th hypodermis cell	hyp9		WBbt:0004380
Tail dorsal hypodermis	hyp11	lineage name: Cpappv	WBbt:0004377
Preanal hypodermis	hyp12	lineage name: P12.pa	WBbt:0004376
The left and right lateral ganglia lie beside the nerve ring in the head. They each contain about (30) neuron cell bodies and send their neuronal processes into the ring at its posterior margin either laterally or ventrally via the amphid commissures and ventral ganglion, but form no local neuropil separate from the nerve ring. The lateral ganglia are in close contact with the lateral hypodermal cords.	lateral ganglion	lateral ganglia	WBbt:0005105

1 Genes

WormBase Gene ID	Gene Name	Sequence Name	Organism
WBGene00008439	mfb-1	DY3.6	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 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