WormMine: AnatomyTerm WBbt:0004979

• Definition: Receives a few synapses in the ring, has a posteriorly directed process that runs sublaterally
• Name: SIBDR
• Primary Identifier: WBbt:0004979
• Synonym: lineage name: ABprppaaaaa

1 Children

Definition	Name	Synonym	Primary Identifier
nucleus of pedigree ABprppaaaaa	ABprppaaaaa nucleus		WBbt:0002751

1 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Top 300 transcripts enriched in SIBDL, SIBDR, SIBVL, SIBVR 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:SIB

56 Expression Patterns

• Primary Identifier: Expr4382
• Pattern: Expressed in AVA, RIB, RID, SIB, SMD, CEP(?), ADE(?), some unidentified neurons in the head and tail. Also expressed in anal depressor, head muscles (strong), body wall muscles (strong).

• 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: Expr15649

• Primary Identifier: Expr9910
• Pattern: While DMA-1::GFP is dominantly expressed in PVD and FLP, especially by the adult stage, DMA-1::GFP expression in additional head and ventral cord neurons was detected during larval and early adult stages. DMA-1 expression was detected in the PVD cell body shortly after PVD are born (L2 larval stage) before any dendrite outgrowth or branching has occurred. Weaker DMA-1::GFP expression can be seen in ventral cord motorneurons and in the sub-lateral cords.Expression was variable from animal to animal, seen in both commissural and non-commissural motorneurons, and was mostly undetectable by the early adult stage. In the head, expression of DMA-1::GFP was detected during development in additional head neurons besides FLP. Of these neurons, the strongest expression was detected in neurons that run around the nerve ring and extend processes along the sub-lateral cords (likely some combinationof the SIA, SIB, SMB and/or SMD classes of neurons). A number of additional head neurons displayed inconsistent DMA-1::GFP expression from animal to animal. Again, expression in these additional neurons was transient and mostly undetectable by the early adult stage. d, Strong expression DMA-1::GFP was detected in vulva cells during the L3-L4 larval stages.
• Subcellular Localization: Bright DMA-1::GFP localization can be seen in intracellular membrane structures that are likely to be golgi/ER. The plasma membrane is also clearly visible, indicating that DMA-1::GFP is a cell-surface protein.

• Primary Identifier: Expr15558

• Primary Identifier: Expr15571

• Primary Identifier: Expr15572

• Primary Identifier: Expr15573

• Primary Identifier: Expr15579

• Primary Identifier: Expr15586

• Primary Identifier: Expr15651

• Primary Identifier: Expr15652

• Primary Identifier: Expr15589

• Primary Identifier: Expr15591

• Primary Identifier: Expr15598

• Primary Identifier: Expr8850
• Remark: Picture: Fig 3.
• Pattern: Neuronal Expression: AVA, AVB, AVE, PVC, AIB, AUA, AVG, RIB, RIC, SAA, SIA, SIB, RIF, RIM, RMD, RME, SMD, DA, DB, VA, VB, M5, NSM, MC, I3, MI?. Non-neuronal Expression: rectal epithelium, body wall muscle, spermethecae, vulva muscle.

• Primary Identifier: Expr15604

• Primary Identifier: Expr15608

• Primary Identifier: Expr15611

• Primary Identifier: Expr716
• Remark: This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).
• Pattern: Expression observed in most or all neurons at high levels as well as in some hypodermal and muscle cells. In most neurons, sax-3::GFP expression is transient, peaking during the period of axon outgrowth. Highest level of expression is observed in the embryo, particularly during the initial period of axon outgrowth at 350-400 min (comma-stage). At comma-stage high level of expression is observed in anterior embryo, including most developing neurons of the nerve ring and a swath of ventral cells that includes the developing motor neurons of the ventral nerve cord and posterior neurons such as PVQ. Lower level of expression is observed in the epidermal cells. 200-400 - cell stage; 200-300 min of development: Expression seen in all epidermal cells at low level. 3-fold stage; >500 min of development: Expression seen in muscles that extend from nerve ring to the anterior tip of the head. L1: Expression in motor neurons in the head including RMD, RMG, SMD, SIA and SIB neurons; projection interneurons in the head and tail, including AVA, AVB, PVC, AVD, PVQ and ALA neurons; and the sensory OLQ neuron. This neuronal expression diminishes throughout postembryonic development. During L1, expression persists in the head muscles and appears in muscles along the body wall, with ventral muscles expressing more strongly than posterior muscles. This expression continues until the adult stage. Epidermal expression was rarely seen in larval stages. L2: Expression observed in HSN motor neurons. HSN motor neurons extends a growth cone (axon from their lateral cell bodies) towards the ventral midline and expression is at its highest at this point. L3: Expression observed in the axon reaching the ventral nerve cord. L4: Expression continues in HSN, when HSN axon grows anteriorly to the head. Adult: Expression decreases in HSN at this stage after the completion of HSN axon outgrowth. In addition expression observed in motor neurons, interneurons and sensory neurons listed above also postembryonic ventral cord motorneurons, some interneurons from the tail and head, body wall and vulval muscles.

• Primary Identifier: Expr15406

• Primary Identifier: Expr8677
• Remark: Picture: Fig 3.
• Pattern: Expression in the alimentary canal: Strong and consistent expression in anterior arcades, posterior arcades. Weak or rare expression in pm2, pm3, pm4, pm5, pm6, pm7, pm8, mc1, g1, g2, rectal gland cells, rectal epithelial cells. Expression in the nervous system: Phsh, AVK, DVC (early larva), PVR, SIB (early larva), URB, I3. Expression in the reproductive system: In adult stage, expressed in gonad sheath, uterus, vulval muscle. In developing larva stage, expressed in vulva. Neuronal expression of inx-9 appears around three-fold stage. The rectal gland expresses inx-9 during early larval stages. inx-9 is expressed in adult hermaphrodite sex muscles. inx-9 was expressed at high levels in arcade cells starting around two-fold stage continuing throughout development and adulthood.

• Primary Identifier: Expr320
• Remark: Neuronal gene expression pattern from collation by Shawn Lockery of neuron-specific promotors posted 20/04/98 (http://chinook.uoregon.edu). Since cell AS is listed under 'body' in the pattern, it presumably means the AS.1-11 ventral cord neurons rather than the AS amphid neurons.[sdm-curator]
• Pattern: head: IL2 URA URB SAA SAB SIA SIB SMB SMD RMD AIY, sev more; phar: M1 M2 M5 I1f I6f, others; body: VA VB VC DA DB AS SDQ HSNf; tail: ALN PLN others [J. Duerr (personal communication to Shawn Lockery)], antibody

• Primary Identifier: Expr8694
• Remark: Picture: Fig 3.
• Pattern: Expression in the alimentary canal: Strong and consistent expression in M5, I1, I3, I6, NSM. Weak or rare expression in posterior arcades. Expression in the nervous system: Phsh, ADA, ADE, ADL, AIN, AIY, ALM, AUA, AVA, AVD, AVH, AVJ, AVK, AVM, AWB, BDU, CAN, CEP, DAn, DBn, DDn, DVB, DVC, FLP, HSN, IL1, IL2, LUA, OLL, PDA, PDB, PDE, PHA, PHB, PHC, PLM, PLN, PVC, PVD, PVM, PVN, PVP, PVQ, PVR, PVT, PVW, RIB, RIC, RIF, RIP, RIS, RME, SDQ, SIA (early larva), SIB (early larva), SMB (early larva), SMD (early larva), URA, URB, VAn, VBn, VCn, VDn, M5, I1, I6, NSM. Expression in the reproductive system: In adult stage, expressed in vulval muscle, uterine muscle, HSN, VCn. In developing larva stage, expressed in HSN, VCn, and anchor cell.

• Primary Identifier: Expr15648

• Primary Identifier: Expr12716

• Primary Identifier: Expr12717

• Primary Identifier: Expr15624

• Primary Identifier: Expr15327
• Remark: 3.7 kb

• Primary Identifier: Expr1329
• Pattern: UNC-42 expression was detected with a mouse antiserum in several cells as early as 260 minutes of embryogenesis and in neurons at high levels in the head by comma stage, the time when these neurons extend axons and establish connections. Expression in head neurons continues into adulthood. UNC-42 was strongly expressed in at least 20 pairs of neurons of the head, including the AVA, AVD and AVE interneurons, ASH sensory neurons, and RMD and SMB motor neurons. Other neurons that express high levels of UNC-42 include the AIN, AVH, AVJ, AVK, RIV, SAA and SIB interneurons. The same expression pattern in the head was detected in animals that carry a transgene that encodes an UNC-42 protein tagged at its C terminus with GFP(gmEx186). Antiserum to UNC-42 and the gmEx104 GFP reporter gene revealed low levels of unc-42 expression in hypodermis and additional neurons in the head. Transient expression of UNC-42 protein was also detected in the DD motor neurons at hatching and at low levels in postembryonic ventral cord motor neurons derived from P11. UNC-42 protein was not detected in descendants of P2-P10 or P12. In the tail, unc-42-gfp (gmEx104) is strongly expressed in PVT.

11 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 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

4 Parents

Definition	Name	Synonym	Primary Identifier
neuron with its cell body situated in the head, excluding the pharynx.	head neuron		WBbt:0006751
embryonic cell	ABprppaaaa		WBbt:0006505
Neuron class of four interneurons, which send processes posteriorly down the sub-lateral cords. SIBV has cell bodies, in the ventral ganglion, which send processes that run right round the nerve ring and return to the neuropile of the ventral ganglion.	SIB		WBbt:0005359
neuron type, cell body located in right lateral ganglion.	lateral ganglion right neuron		WBbt:0005100