WormMine

WS294

Intermine data mining platform for C. elegans and related nematodes

Anatomy Term :

Definition  embryonic cell Name  ABpraaappa
Primary Identifier  WBbt:0006483

3 Children

Definition Name Synonym Primary Identifier
Amphid neuron, prob. chemosensory ADFR lineage name: ABpraaappaa WBbt:0003999
Amphid wing cells, neurons having ciliated sheet-like sensory endings closely associated with amphid sheath AWBR lineage name: ABpraaappap WBbt:0003828
nucleus of pedigree ABpraaappa ABpraaappa nucleus   WBbt:0001485

1 Expression Clusters

Regulated By Treatment Description Algorithm Primary Identifier
  Top 300 transcripts enriched in ABalpppppa, ABpraaappa 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:Neuroblast_ADF_AWB

12 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
Other strain-- UL123   Expr103 This strain exhibits strong expression in the embryo. Expression is first seen in the 50-80 cell embryo and extends through to adulthood. It appears that most of the AB cells in the embryo stain, and what appears to be the cells of the C lineage. Some embryos exhibit staining in the two rows of nuclei that are the E lineage. All embryonic staining is very intense, and it spreads to the cytoplasm giving blue embryos, therefore obscuring the DAPI staining, making it difficult to count the number of cells in the embryos as each component begins expressing. This intense staining fades as the embryo ages, sometimes leaving blue comma stage embryos with no distinct nuclei staining. Hypodermal expression is seen in the 3 fold stage of embryogenesis and in young larvae which most probably are C-derived hyp-7 nuclei. Expression weakens as the worm gets older and is much less frequently expressed in adults. Some adults do show staining in the anterior hypodermal nuclei (hyp-3, hyp-4) and in the anterior hypodermal seam cells, also some nuclei stain in the tail.  
This information was extracted from published material (Archana Sharma-Oates, Andrew Mounsey and Ian A. Hope).   Expr706 NHR-2 is detected in the nuclei of embryos as early as 2-cell stage. The protein is present in every nucleus until the 16-20 cell stage then no longer detected in germline precursor P4 and its sister D but at this point expression in other cells increase. No staining during or just after mitosis. 28-cell stage: Staining in E and MS descendants, variable expression generally weak particularly in E cells. Staining in ABplp and ABpr descendants also variable but can be quite strong. The other 10 AB cells and 4 C cells exhibit reproducible strong expression. 51-cell stage: No expression in descendants of E. Staining in C cells, many AB cells and some MS cells (particularly those in anterior and dorsal positions). As embryogenesis progresses NHR-2 expression is restricted to anterior and dorsal regions of embryo. 250 cell stage: Nuclei staining include (but not limited to) Cp descendants contributing to hyp7 synctium, many but not all AB descendants. NHR-2 last detected in one or a few nuclei in vicinity of excretory cell before expression ceases at early comma stage.  
This myc::lim-4 transgene potently rescues ADF serotonergic phenotype in yz12 mutants, indicating that the MYC::LIM-4 protein is expressed in cells necessary to specify ADF serotonergic identity.   Expr3765 To examine lim-4 expression during the embryogenesis, the eggs were stained at various developing stages with anti-myc antibodies. A GFP reporter was used for the GATA gene elt-2, which is specifically expressed in the gut lineage, to stage the embryos. MYC::LIM-4 immunoreactivity is first detected in two cells approximately 160 min post-fertilization at 8 gut nuclei stage. The two MYC::LIM-4-staining cells was identified as the neuroblasts ABalpppppa and ABpraaappa that respectively give rise to left/right ADF and AWB neurons, based on triple labeling of the embryos with antibodies raised against the LIN-26 protein, which is expressed in the nuclei of the hypodermal cells that border the ADF/AWB mother cells. Like lim-4::gfp, the MYC::LIM-4 immunoreactivity is not detected in ADF at any stage of larvae or adults, but it is observed in AWB and several other neurons in the head throughout life (N > 200). It is difficult to determine if LIM-4 is excluded from ADF or it is present there transiently.  
    Expr3279 In the embryo, the downstream promoter (ten-1b) is most active in the descendants of the ABp cell and in the hypodermis. The dorsal hypodermal cells and the ventral leader cells were most prominently labeled. During postembryonic development, GFP fluorescence was visible in specialized epithelial cells including the arcade cells of the anterior end and the excretory duct. Ten-1b is also active in a subset of neurons including CAN and HSN neurons as well as neurons of the lumbar and retro-vesicular ganglion and some nerve ring interneurons. In males, GFP fluorescence is also visible in R8 and R9 ray neurons.  
    Expr1633 First, pKK52 expression begins at the 28-cell stage in all four granddaughters and 16 great-great granddaughters of the MS and AB founder cells, respectively; this expression continues in many, possibly all, of their descendants until around the time of hatching. Second, expression becomes more pronounced in seam cells about 1 hour after their birth. This seam expression remains strong throughout embryonic and larval development, but becomes slightly reduced in adults. Third, robust expression is also seen in several cells in the head region, at least some of which are cells in the nervous system (neurons and/or support cells), beginning at approximately the comma stage and continuing through adulthood. For simplicity, this component of the expression pattern was referred as nervous system expression, although the precise identity of these cells were not determined.  
See Expr1633 for pKK52 expression pattern.   Expr1634 pKK41 is expressed in the same groups of cells as the elt-5 translational reporter (pKK52), but the relative expression levels are different. Whereas the elt-5 reporter is strongly expressed in both seam cells and the nervous system during the comma through pretzel stages, the elt-6 reporter is strongly expressed only in the nervous system. Only weak expression of the elt-6 reporter is apparent in seam cells and in the AB and MS descendants during embryogenesis, but the seam expression becomes stronger during larval development. Strong expression of the elt-6 reporter in the nervous system continues throughout larval development.  
    Expr10312 Inferred expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  
    Expr10307 Inferred expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  
    Expr10253 Inferred expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  
    Expr10266 Inferred expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  
    Expr10422 Inferred Expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  
    Expr10443 Inferred Expression. EPIC dataset. http://epic.gs.washington.edu/ Large-scale cellular resolution compendium of gene expression dynamics throughout development. This reporter was inferred to be expressing in this cell or one of its embryonic progenitor cells as described below. To generate a compact description of which cells express a particular reporter irrespective of time, the authors defined a metric "peak expression" for each of the 671 terminal ("leaf") cells born during embryogenesis. For each of these cells, the peak expression is the maximal reporter intensity observed in that cell or any of its ancestors; this has the effect of transposing earlier expression forward in time to the terminal set of cells. This metric allows straightforward comparisons of genes' cellular and lineal expression overlap, even when the expression occurs with different timing and despite differences in the precise time point that curation ended in different movies, at the cost of ignoring the temporal dynamics of expression, a topic that requires separate treatment. For simplicity, the authors use the term "expressing cells" to mean the number of leaf cells (of 671) with peak expression greater than background (2000 intensity units) and at least 10% of the maximum expression in that embryo. Quantitative expression data for all cells are located here: ftp://caltech.wormbase.org/pub/wormbase/datasets-published/murray2012/  

4 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 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 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

2 Parents

Definition Name Synonym Primary Identifier
embryonic cell ABpraaapp   WBbt:0006716
cell that exists in and is part of an embryo. embryonic cell   WBbt:0007028