WormMine: AnatomyTerm WBbt:0004740

• Definition: Neuron class of one pharyngeal interneuron, posterior sensory.
• Name: I5 neuron
• Primary Identifier: WBbt:0004740
• Synonym: I5

1 Children

Definition	Name	Synonym	Primary Identifier
nucleus of pedigree ABarapapapp	ABarapapapp nucleus		WBbt:0002103

6 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Expressed transcripts enriched in embryonic motor neurons (identified by unc-4::GFP expressing cells).	Comparisons of RMA normalized intensities for unc-4::GFP vs reference cells were statistically analyzed using Significance Analysis of Microarrays software (SAM, Stanford). A two-class unpaired analysis of the data was performed to identify genes that differ by 1.7-fold from the wildtype reference at a False Discovery Rate (FDR) of 1%. These genes were considered significantly enriched.	WBPaper00025141:unc-4::GFP_Enriched_Genes
	Genes expressed in embryonic motor neurons (identified by unc-4::GFP expressing cells).	Genes called Present by MAS 5.0 in 2 out of 3 unc-4::GFP hybridizations.	WBPaper00025141:unc-4::GFP_Expressed_Genes
	Top 300 transcripts enriched in I5 neuron according to single cell RNAseq.	Top 300 enriched transcripts were determined by log2.ratio of the tpm in the cell type vs the tpm in the other cells * the log2 of the cell.type tpm.	WBPaper00061340:I5
	Single-cell RNA-Seq cell group 105_0 expressed in neuron.	scVI 0.6.0	WBPaper00065841:105_0
	Transcripts enriched in I5 according to single cell RNAseq.	Genes that pass the Bonferroni threshold for multiple comparisons (q < 0.05) are significantly enriched.	WBPaper00061651:I5_enriched
	Single-cell RNA-Seq cell group 123 expressed in: I5; I4.	CellRanger, DecontX, Monocle3, Louvain algorithm.	WBPaper00065623:123

54 Expression Patterns

• Primary Identifier: Expr4859
• Pattern: A-class motor neuron: enriched in embryo (8.7) and larva (7.9). Neuronal expression include: I5, ASE, ASG, BAG, DD, M3, M5, head neurons. Pan-neuronal: expressed in embryo; enriched in larva (7.1).

• Primary Identifier: Expr4381
• Pattern: Expressed in AVA, AVB, DVA, I5, RID, RIM, PVQ, SAA, SIA, SIB, SMB(?), SMD, ventral cord motor neurons, some unidentified neurons in the head. Also expressed head muscles (weak), body wall muscles (weak).

• Primary Identifier: Expr11756
• Remark: Isoform 1b.2

• Primary Identifier: Expr15558

• Primary Identifier: Expr9325
• Pattern: Synaptogyrin is expressed in all 26 GABAergic neurons including also RMER and most though not all other neurons. Synaptogyrin is absent in amphids and phasmids and can be detected in non-neuronal glial-like sheath cells in adult worms. The cephalic neurons CEPDR/L and CEPVR/L and amphid-associated sheath cells CEPshDR/L, CEPshVR/L were tentatively positive. Several other neurons that could be tentatively identified in the anterior part are MI, M4, I4, AVL, AIY, RIS, I5, M3R/L, and in the posterior part DVA, AS11, ALNR/L, DVC, DVB, PQR, DA9 (characteristic axonal process denoted by arrowhead), VD13, DD6, VD12. Of these, AVL, RIS, VD13, DD6 and VD12 are GABAergic based on the colocalization with the unc-47p::GFP reporter. In addition, IL neurons were tentatively identified in the anterior (IL*). Synaptogyrin reporter constructs are also expressed in developing neurons. The expression of sng-1p::YFP is closely associated with the development of the nervous system being absent in the gastrula stage with first fluorescence in neuronal precursor cells and newly-formed neurons in the anterior part during the 1.5-fold stage. In addition, it is also detected transiently in cells in the posterior body at the 1.25-fold and 1.5-fold stage.

• Primary Identifier: Expr15567

• Primary Identifier: Expr15571

• Primary Identifier: Expr15572

• Primary Identifier: Expr15573

• Primary Identifier: Expr15579

• Primary Identifier: Expr15583

• Primary Identifier: Expr15586

• Primary Identifier: Expr15651

• Primary Identifier: Expr15652

• Primary Identifier: Expr15589

• Primary Identifier: Expr13158

• Primary Identifier: Expr15591

• Primary Identifier: Expr15598

• Primary Identifier: Expr11622
• Pattern: Expression of ceh-34::gfp transgene began during embryogenesis. CEH-34::GFP was localized to the nuclei of expressing cells. During embryonic morphogenesis and larval development and throughout adulthood, expression of the ceh-34::gfp transgene was seen predominantly in pharyngeal cells. The ceh-34::gfp transgene was expressed in all pharyngeal neurons (M4, I1, MI, I3, M3, NSM, MC, I2, I4, I5, I6, M1, M2, and M5), some pharyngeal muscle cells (pm1 and pm2) and pharyngeal epithelial cells (e1 and e3), and some body wall muscles around the anterior pharynx.

• Primary Identifier: Expr15604

• Primary Identifier: Expr14590
• Pattern: Embryonic expression of exc-7 was first observed at the bean stage. By reverse lineaging with use of SIMI-Biocell software, we confirm the identity of one of the expressing cells at this stage as the excretory canal cell. In L1 animals, broad expression in the head, ventral nerve cord (VNC), and tail was observed. In young adults, expression is notably observed in vulva cells. In the nervous system specifically, expression is observed in many neurons throughout the body, but unlike Drosophila Elav, exc-7::gfp it is not panneuronally expressed. We confirmed previously reported expression in cholinergic VNC MNs, but absence of GABAergic VNC MNs, consistent with previous reports (Fujita et al., 1999; Loria et al., 2003) and consistent with exc-7 functioning in cholinergic, but not GABAergic neurons to control alternative splicing (Norris et al., 2014). exc-7::gfp is also expressed in some non-neuronal cell types, including muscle and hypodermis, but not in the gut. A previous report showed that exc-7 is only transiently and weakly expressed in the excretory cell, which, based on exc-7's excretory mutant phenotype, has puzzled researchers (Fujita et al., 2003). We find that the gfp tagged exc-7 locus is strongly and continuously expressed in the excretory canal cell.

• Primary Identifier: Expr15608

• Primary Identifier: Expr11375
• Pattern: eat-4 is expressed in 78 of the 302 neurons of the adult hermaphrodite, which fall into 38 neuron classes (out of a total of 118 anatomically defined neuron classes in the hermaphrodite). Most of these neurons are either sensory- or interneurons. Only two motorneurons utilize glutamate; both are located in the pharynx.

• Primary Identifier: Expr15611

• Primary Identifier: Expr8
• Remark: life_stage summary : postembryonic
• Pattern: Post-embryonic expression. L1-L4, single ventral cell in middle of the second bulb of the pharynx. L1, single cell in dorsal midline near nerve ring, L2-young adult, 1 dorsal and 1 ventral cell near nerve ring. L2/L3 cell in dorsorectal ganglion.

• Primary Identifier: Expr2890
• Remark: The whole-mount in situ hybridization database by the Kohara Lab [NEXTDB Ver. 3.0 beta (July 07, 2001), yk112c4, shows that the gene is expressed transiently in the midembryonic stage.
• Pattern: Expression was detected in some neurons in the head and pharynx of larvae and adult animals. The neurons expressing Ce-TBX-2 was identified in adult animals: they were amphid sensory neurons AWB, AWC, ASJ, and pharyngeal neurons I1, I3, I5, M1, M2, M5, NSM.
• Subcellular Localization: Most Ce-TBX-2 protein molecules were localized in the cytoplasm and not in the nuclei of all the neurons that express this protein. The mutations ut180 and ut192 did not change the localization.

• Primary Identifier: Expr976
• Remark: Reporter gene fusion type not specified. The antibody staining showed EAT-20 expression in the seam cells and hypodermal cells, which is inconsistent with the absence of GFP expression in those cells in the promoter trap lines, suggesting that p5E5 may not contain all the cis-regulatory elements necessary for the expression of the eat-20 gene.
• Reporter Gene: GFP expression was analyzed in ncIs1 hermaphrodites carrying p5E5 as a stable integrated transgenic array. Though p5E5 contains a 2-kb genomic fragment derived from LGV at the 5' side in addition to the fragment corresponding to the eat-20 gene, it is confirmed that an extrachromosomal array of p5E5 and that of p5E5del, in which the 2-kb fragment was deleted, gave the same GFP expression pattern. Thus, the fragment at the 5' part of the insert had no effects on the expression of GFP. Neurons expressing GFP were first identified in L1 larvae.
• Pattern: In embryos, GFP expression was first detected at the 2-fold stage. Sometimes eight cells in the anterior half of the body expressed GFP. At the 3-fold stage, several cells around the pharynx expressed GFP in most embryos. About half of the embryos also expressed GFP weakly in the pharynx. At L1, GFP was detected in a subset of neurons. About half of the larvae also expressed GFP in the pharynx; expression in the terminal bulb was the most intense. At the adult stage, GFP was detected in the pharyngeal muscles, m3, m4, and m6. In addition, GFP was detected in a subset of neurons: IL1, OLQ, BAG, and ALN, several circumpharyngeal cells, and coelomocytes. Very faint GFP fluorescence was detected in the pharyngeal neurons including I4 and I5 in L1 larvae.

• Primary Identifier: Expr15648

• Primary Identifier: Expr3014
• Pattern: Expressed in ASE, ASG, ASK, BAG, DD, I5, M3, M5. Faint or variable expression observed in an extra pair of cells in the head. Male specific expression in VSP.

• Primary Identifier: Expr538
• Remark: Integrated strain PS1445 [dpy-20(e1362); him-5(e1490); syIs7(gpa-2::lacZ)].
• Pattern: Expressed in PVT, phasmids, AIA cells, mu_sph, M1, M5, and I5. The lacZ construct, but not a GFP construct (see Expression pattern 539), was expressed in AWC cells.

12 Life Stages

Remark	Definition	Other Name	Public Name	Primary Identifier
	The whole period of embryogenesis in the nematode Caenorhabditis elegans, from the formation of an egg until hatching.		embryo Ce	WBls:0000003
	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
	The C. elegans life stage spanning 350-620min 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. The stage that embryo starts elongation until elongation is over.		elongating embryo Ce	WBls:0000015
	The C. elegans life stage spanning 290-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage when embryo just finished gastrulation and is enclosing.		enclosing embryo Ce	WBls:0000013
	The C. elegans life stage spanning 100-290min after first cleavage at 20 Centigrade. Proliferate from 28 cells to 421 cells. Referring to the whole period of gastrulation.		gastrulating embryo Ce	WBls:0000010
	The C. elegans life stage spanning 0-350min after first cleavage at 20 Centigrade. Proliferate from 1 cell to 560 cells. From start of first cleavage until cleavage is over.		proliferating embryo Ce	WBls:0000004
	The C. elegans life stage spanning 520-620min 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. The shape of embryo is elongated and tripple fold. A stage between 2-fold embryo and fully-elongated embryo. Also called pretzel embryo or pretzel stage.		3-fold embryo Ce	WBls:0000020
	The C. elegans life stage spanning 420-460min 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. The shape of embryo is elongated and fold back 50%. A stage between comma embryo and 2-fold embryo.		1.5-fold embryo Ce	WBls:0000018
	The C. elegans life stage spanning 390-420min 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. The shape of embryo looks like a comma. A stage between bean embryo and 1.5-fold embryo.		comma embryo Ce	WBls:0000017
	The C. elegans life stage spanning 460-520min 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. The shape of embryo is elongated and double fold. A stage between 1.5-fold embryo and 3-fold embryo.		2-fold embryo Ce	WBls:0000019
	The C. elegans life stage spanning 350-390min 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. Emrbyo elongation started but have not formed comma shape yet. The shape of embryo looks like a lima bean. A stage right before comma embryo. Also called lima embryo or lima bean stage.		bean embryo Ce	WBls:0000016
	The C. elegans life stage spanning 210-350min after first cleavage at 20 Centigrade. Proliferate from 421 cells to 560 cells. The stage before the fast cleavage of cells finishes.		late cleavage stage embryo Ce	WBls:0000014

3 Parents

Definition	Name	Synonym	Primary Identifier
the last, posterior bulb of the pharynx.	terminal bulb		WBbt:0003732
interneuron of the pharyngeal nervous system.	pharyngeal interneuron		WBbt:0003668
embryonic cell	ABarapapap		WBbt:0005932