WormMine: AnatomyTerm WBbt:0003884

• Definition: one member of Amphid neurons, single ciliated endings, probably chemo-sensory; project into ring via commissure from ventral ganglion, make diverse synaptic connections in ring neuropil
• Name: ASKL
• Primary Identifier: WBbt:0003884
• Synonym: lineage name: ABalpppapppa

1 Children

Definition	Name	Synonym	Primary Identifier
nucleus of pedigree ABalpppapppa	ABalpppapppa nucleus		WBbt:0001687

2 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Top 300 transcripts enriched in ASKL, ASKR 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:ASK
	Single-cell RNA-Seq cell group 63_0 expressed in neuron.	scVI 0.6.0	WBPaper00065841:63_0

209 Expression Patterns

• Primary Identifier: Expr4693
• Remark: nsy-5 = T16H5.1.
• Pattern: A GFP reporter transgene with 5.8 kb of the nsy-5 promoter was expressed exclusively in sensory neurons and interneurons in the head and tail. The neurons that expressed nsy-5::GFP included AWC, ASH, AFD, ASI, ADL, ASK, BAG, AWB, and ADF (head sensory neurons); ADA, AIZ, RIC, AIY, and AIM (head interneurons); PHA and PHB (tail sensory neurons); and PVC and PVQ (tail interneurons). Expression began about halfway through embryogenesis, was strongest in late embryogenesis and the L1 larval stage, and faded thereafter. Adults maintained weak expression in several neurons, including ASH but not AWC.

• Primary Identifier: Expr4684
• Pattern: GFP expression was detected at most developmental stages, with the spatial expression depending on the developmental stage of the animal. Neuronal expression of hlh-29 was detected in larvae and adults in both amphid and phasmid sockets, in the ALA and PVT neurons, in the chemosensory and mechanosensory neurons, ASI, ASK, PHA, and PQR, and in neurons of the anterior pharyngeal bulb. Weaker expression was also detected in the ASG chemosensory neurons in some transgenic lines. L1 animals show strong expression of hlh-29 in intestinal cells, and weaker expression in the rectal glands and the pharyngeal muscle cell PM1. By L3 stage, intestinal expression of the hlh-29::GFP is limited to the posterior intestinal cells, and PM1 expression is no longer detected. Expression is also detected in the ventral posterior coelomocytes in the later L3-stage larvae, and in the spermatheca and vulval muscles of L4 and adult animals.

• Primary Identifier: Expr4796
• Remark: Reporter gene fusion type not specified.
• Pattern: cnx-1 was expressed ubiquitously in every blastomere of the embryos up to the gastrulation stage but expression became gradually restricted to the head and tail regions at the comma stage during embryogenesis. During post-embryonic development, cnx-1 was expressed prominently in the H-shaped excretory cell, in the neurons of head and tail, in the dorsal and ventral nerve cords, and in the spermatheca. cnx-1 expression was also observed in the spicules of the male tail. The two head neurons expressing cnx-1 are ASK and ADL, and two tail neurons are PHA and PHB. Therefore, cnx-1 is expressed in head neurons including ASK and ASI chemosensory neurons and tail neurons including PHA and PHB.

• Primary Identifier: Expr4403
• Pattern: Strong and consistent expression was observed in a limited number of neurons in the head and tail and coelomocytes. Weaker and/or inconsistent expression of TTX-7::EGFP was detected in nerve cord motor neurons, intestine, and somatic gonad. The head neurons expressing ttx-7::EGFP include AFD and RIA neurons. Also expressed in ASH, ASE, ASJ, AWC, ADF, ADL, ASI, ASK, AWB, VNC motor neurons, etc.
• Subcellular Localization: TTX-7::EGFP was diffusely expressed in the cytoplasm and was not localized to any specific subcellular compartment.

• Primary Identifier: Expr4204
• Remark: A translational DYF-2::GFP fusion was found to be localized only in cilia of CSN, thus precluding a confirmation of the cellular expression pattern obtained with the transcriptional dyf-2::gfp fusion or any further cell identification.
• Pattern: dyf-2::gfp expression was observed in only a subset of the ciliated sensory neuron (CSN) class in the worm. GFP signal was observed in seven out of twelve neurons of the amphids, including ASH, ASI, ASJ, ASK, ADL (ciliated neurons that fill with the fluorescent dye DiI) plus two hitherto unidentified amphid neurons. In addition, GFP expression was observed in the phasmid CSN and in neurons identified as AQR and PQR (asymmetric CSN in the head and tail, respectively). No or only very occasional GFP signal was detected in other CSN anterior to the nerve ring in the head of the worm.

• Primary Identifier: Expr4647
• Pattern: Transgenic lines generated with the partial protein fusion construct (for example, ljEx109) expressed TRPA-1:: GFP in the same cells as ljEx107 (see Expr4646), but with some additional cells, including the majority of amphid sensory neurons (for example, ASH, AWA, AWB, ASI and ASK) and the phasmid neurons PHA and PHB.

• Primary Identifier: Expr4648
• Pattern: Transgenic lines generated with the full-length protein fusion construct (for example, ljEx114) expressed TRPA-1:: GFP in the same cells as ljEx107 (see Expr4646), but with some additional cells, including the majority of amphid sensory neurons (for example, ASH, AWA, AWB, ASI and ASK) and the phasmid neurons PHA and PHB. The full-length TRPA-1:: GFP fusion was also expressed in the PVD and PDE in the postdeirid sensilla and the sensory neurons OLQ and IL1. Other neurons in the head and ventral nerve cord also expressed TRPA-1:: GFP.
• Subcellular Localization: The fusion protein was observed at the cilia of sensory neurons, as well as at the cell body.

• Primary Identifier: Expr4546
• Remark: asna-1 has been predicted to be the fourth gene in an operon together with the genes ZK637.2, ZK637.3, and ZK637.4 according to WS160.
• Pattern: An ASNA-1::GFP fusion protein driven by the 430 bp fragment fully rescued asna-1(sv42) and asna-1(ok938). In worms carrying the transgene, like those harboring the longer construct, GFP expression was seen in a restricted set of sensory neurons, in the intestine, and weakly in the hypodermis. Further analysis of the sensory neuron expression revealed that during the L1 and L2 stages, GFP was invariably expressed in ASI, and often also in ASK. In some animals, expression was also seen in ADL; however, in most animals expression was not seen in all three pairs of neurons simultaneously.

• Primary Identifier: Expr4541
• Pattern: Expressed in ASKL/R, ASIL/R, ASJL/R.

• Primary Identifier: Expr4511
• Pattern: RGS-3::GFP expression is seen in seven pairs of head sensory neurons (ASH, ADL, AWB, AWC, ASI, ASJ and ASK) as well as PHA and PHB in the tail.

• Primary Identifier: Expr14133
• Remark: Strain: OH14774
• Pattern: Asymmetric expression in AWC OFF, ASK, ASI

• Primary Identifier: Expr8656
• Remark: Picture: Fig 3.
• Pattern: The fusion protein encoded by the transgene was preferentially detected in several tissues including the nervous system. However, its presence was not uniform. Within the nervous system, ELPC-1::GFP was seen predominantly in a pair of neurons that control egg-laying, the HSNs, and in chemosensory neurons in the head. Within the latter class of neurons, the ELPC-1::GFP level was particularly high in the ASE, ADF and ASK pairs of neurons. Outside of the nervous system, a strong ELPC-1::GFP signal was seen in the pharynx and the vulva. In all animals examined, ELPC-1::GFP expression was also seen in the two CAN cells.
• Subcellular Localization: In the nervous system, expression was seen both within the cell bodies and along the entire lengths of the neuronal processes. Outside of the nervous system, in all cells in which ELPC-1::GFP was seen, fluorescence was restricted to the cytoplasm.

• Primary Identifier: Expr11200
• Remark: Reporter fusion construct for the translational fusion not specified.
• Pattern: Upstream regulatory sequences of cng-2 drove gfp expression exclusively in six pairs of head sensory neurons in the adult. AWC, ASE, ASG, ASI, ASJ, ASK (Fig. 2B).
• Subcellular Localization: When expressed under an ASK-specific promoter the CNG-2 fusion protein was restricted to the ASK cell bodies.

• Primary Identifier: Expr3175
• Pattern: Expressed in ADF, ADL, AFD, ASE, ASG, ASH, ASI, ASJ, ASK, AWA, AWB, AWC, BAG, PHA, PHB, URX, intestine.

• Primary Identifier: Expr8976
• Remark: Picture: Fig 4E to 4H. npr-5 = Y58G8A.4 in this paper.
• Pattern: The npr-5p::RFP transgene was expressed in a subset of amphid neurons (ADF, ASE, ASG, ASI, ASJ, ASK, AWA, AWB) in the inner labial neuron IL2, in the interneurons AIA and AUA, and in the phasmids (PHA, PHB). Outside the nervous system, npr-5p::RFP was expressed in head, neck, and body muscles throughout larval and adult development.

• Primary Identifier: Expr11691

• Primary Identifier: Expr10999
• Pattern: We noted ciliary localization of the SRBC-64 G protein-coupled receptor to the ASK cilia but also detected significant accumulation at the periciliary membrane compartment (PCMC) in wild-type animals.

• Primary Identifier: Expr11000
• Pattern: Full-length GFP-tagged SRBC-64 was expressed in and localized to the sensory cilia of the ASK chemosensory neurons.

• Primary Identifier: Expr11809
• Pattern: Robust GFP expression of pnc-1a::exon1a::GFP was detected in head and pharyngeal muscle, the two ASK neurons, the two distal tip cells and the three rectal gland cells (RectD, RectVL and RectVR). Whereas the four uv1 cells did not express pnc-1a::exon1a::GFP, four adjacent uv2 cells had moderate levels of GFP expression. Low levels of pnc-1a::exon1a::GFP expression were also detected in the vulval muscle. The pnc-1a reporter overlaps in expression pattern with the pnc-1b reporter only in head muscle and perhaps vulval muscle.

• Primary Identifier: Expr11753
• Remark: genomic

• Primary Identifier: Expr3169
• Pattern: Expressed in ADF, ADL, ASH, ASI, ASJ, ASK, PHA, PHB.

• Primary Identifier: Expr3185
• Pattern: Expressed in ADF, ADL, ASE, ASG, ASH, ASI, ASJ, ASK, PHA, PHB, URX, labial neurons.

• Primary Identifier: Expr15442

• Primary Identifier: Expr15558

• Primary Identifier: Expr15571

• Primary Identifier: Expr15572

• Primary Identifier: Expr15573

• Primary Identifier: Expr15579

• Primary Identifier: Expr2937
• Pattern: Both ahr-1:GFP reporters are expressed during embryonic and larval development. Expression is first detected in two cells 260 min after the first cleavage. By midembryogenesis (pre-comma stage), 14 cells express the pJ360 ahr-1:GFP fusion gene. At the 2-fold stage of embryogenesis, two cells express ahr-1:GFP in the tail, and the remaining fluorescing cells are in the forming head. During the first larval stage. ahr-1:GFP is expressed in 28 neurons, several blast cells, and two phasmid socket cells. The neurons that express ahr-1:GFP include ALNR/ALNL, AQR/PQR, AVM/PVM, BDUR/BDUL, PLMR/PLML, PLNR/PLNL, PHCL/PHCR, PVWL/PVWR, RMEL/RMER, SDQR/SDQL, and URXR/URXL. The T.pa, T.ppa, and T.ppp blast cells in the tail express ahr-1:GFP, as do all of their descendents, including the PHso1 and PHso2 phasmid socket cells. ahr-1:GFP is also expressed in the MI and I3 neurons in the pharynx and the G2 and W blast cells. Four additional cells in the head express ahr-1:GFP, tentatively identified as the ASK and RIP neurons.
• Subcellular Localization: The pJ360 construct includes the entire ahr-1 genomic sequence, and transgenic animals express this fusion protein in a subset of neuronal nuclei. The pHT102 transgene lacks most of the ahr-1 coding sequence and labels axons as well as nuclei.

• Primary Identifier: Expr15586

8 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 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 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 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

6 Parents

Definition	Name	Synonym	Primary Identifier
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
cell that exists in and is part of an embryo.	embryonic cell		WBbt:0007028
embryonic cell	ABalpppappp		WBbt:0006623
Neuron class of two ciliated neurons that are part of the amphid sensilla. The endings are in the amphid channel, which is open to the outside.	ASK		WBbt:0005668
neuron type, cell body located in left lateral ganglion.	lateral ganglion left neuron		WBbt:0005102
	amphid left sensillum		WBbt:0005395