WormMine

WS294

Intermine data mining platform for C. elegans and related nematodes

Gene :

WormBase Gene ID  ? WBGene00002174 Gene Name  itx-1
Sequence Name  ? W03D8.6 Brief Description  itx-1 encodes one of two Caspr orthologues found in the C. elegans genome; Caspr proteins belong to the Neurexin superfamily and are involved in mediating cell-cell contacts and in the formation of specialized membrane-domains in polarized epithelial and nerve cells; RNA interference of itx-1 suggests that itx-1 is involved in the correct positioning and maintenance of apical junctions and in maintaining epithelial integrity in the gut; gfp-reporter studies indicate that ITX-1 is expressed in intestinal cell epithelia and in the socket cells of the inner and outer labial sensilla; immunofluorescence studies indicate that ITX-1 localizes to the baso-lateral membranes of intestinal epithelia.
Organism  Caenorhabditis elegans Automated Description  Located in adherens junction and basolateral plasma membrane. Expressed in anterior ganglion; intestine; spermatheca; and vulval muscle.
Biotype  SO:0001217 Genetic Position  I :-6.26431 ±0.451296
Length (nt)  ? 13028
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1 Organism

Name Taxon Id
Caenorhabditis elegans 6239

1 Synonyms

Value
WBGene00002174

Genomics

5 Transcripts

WormMine ID Sequence Name Length (nt) Chromosome Location
Transcript:W03D8.6b.1 W03D8.6b.1 5059   I: 2802803-2815820
Transcript:W03D8.6c.1 W03D8.6c.1 5135   I: 2802803-2815830
Transcript:W03D8.6a.1 W03D8.6a.1 5113   I: 2802822-2815818
Transcript:W03D8.6d.1 W03D8.6d.1 4428   I: 2805096-2815643
Transcript:W03D8.6e.1 W03D8.6e.1 4362   I: 2805096-2815643
 

Other

5 CDSs

WormMine ID Sequence Name Length (nt) Chromosome Location
CDS:W03D8.6b W03D8.6b 4863   I: 2802822-2802960
CDS:W03D8.6c W03D8.6c 4929   I: 2802822-2802960
CDS:W03D8.6e W03D8.6e 4362   I: 2805096-2805230
CDS:W03D8.6a W03D8.6a 4938   I: 2802822-2802960
CDS:W03D8.6d W03D8.6d 4428   I: 2805096-2805230

4 RNAi Result

WormBase ID
WBRNAi00054687
WBRNAi00004392
WBRNAi00036229
WBRNAi00115344

359 Allele

Public Name
gk963902
gk964159
gk962616
gk964303
otn12774
WBVar01430785
WBVar00246604
WBVar01545900
WBVar01655151
WBVar01655150
WBVar02028321
WBVar01762025
WBVar01413455
WBVar01420633
WBVar01420636
WBVar01420632
WBVar01413444
WBVar01251695
ttTi54479
WBVar02016303
WBVar01956438
WBVar01252250
WBVar01531690
WBVar01500424
WBVar01500425
WBVar01500422
WBVar01500423
WBVar01500420
WBVar01500421
WBVar01500419

1 Chromosome

WormBase ID Organism Length (nt)
I Caenorhabditis elegans 15072434  

1 Chromosome Location


Feature . Primary Identifier
Start End Strand
WBGene00002174 2802803 2815830 1

4 Data Sets

Name URL
WormBaseAcedbConverter  
GO Annotation data set  
C. elegans genomic annotations (GFF3 Gene)  
Panther orthologue and paralogue predictions  

1 Downstream Intergenic Region

WormBase ID Name Sequence Name Length (nt) Chromosome Location Organism
intergenic_region_chrI_2815831..2816414   584 I: 2815831-2816414 Caenorhabditis elegans

173 Expression Clusters

Regulated By Treatment Description Algorithm Primary Identifier
  Genes with expression altered >= 3-fold in dpy-10(e128) mutants. Data across the wild type series was analyzed using the Significance analysis of Microarrays (SAM) algorithm (to calculate the False Discovery Rate (FDR)). WBPaper00035873:dpy-10_regulated
  Transcripts that showed significantly increased expression in L1 neural cells comparing to in adult neural cells. DESeq2 (v1.18.1) fold change > 2, P-adj<0.05, using BenjaminiHochberg correction. WBPaper00060811:L1_vs_adult_upregulated_neural
  Transcripts of coding genes that showed significantly decreased expression in muscle. DESeq2 (version 1.24.0). Transcripts with a false-discovery rate adjusted p-value less than 0.05 were considered significantly differentially expressed. WBPaper00062325:muscle_depleted_coding-RNA
  Transcripts expressed in neuronal cells, by analyzingfluorescence-activated cell sorted (FACS) neurons. DESeq. False discovry rate (FDR) < 0.1. WBPaper00048988:neuron_expressed
adult vs dauer larva Transcripts that showed differential expression in adult vs dauer lava in N2 animals at 20C. N.A. WBPaper00050488:adult_vs_dauer_regulated_N2_20C
Osmotic stress Transcripts that showed significantly altered expression with 500 mM salt (NaCl) vs 100 mM salt when food was present DESeq(version 1.10.1), FDR < 0.05. WBPaper00050726:OsmoticStress_regulated_Food
  Transcripts that showed significantly increased expression glp-1(e2141); TU3401 animals comparing to in TU3401 animals. Fold change > 2, FDR < 0.01. WBPaper00065993:glp-1(e2141)_upregulated
  Proteins interacting with NHR-49-GFP according to co-IP and LC-MS. N.A. WBPaper00064071:NHR-49_interacting
  Transcripts expressed in the epithelial tissues surrounding the pharynx that includes the arcade and intestinal valve (AIV) cells, according to PAT-Seq analysis using Pbath-15-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:arcade_intestinal-valve_expressed
  Transcripts expressed in body muscle, according to PAT-Seq analysis using Pmyo-3-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:body-muscle_expressed
  Transcripts that showed significantly decreased expression in atfs-1(cmh15) (null allele) animals comparing to in N2 animals at L4 larva stage. edgeR, fold change > 2, FDR < 0.05 WBPaper00060909:atfs-1(cmh15)_downregulated
  Transcripts expressed in intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:intestine_expressed
  Transcripts that showed significantly increased expression in rrf-3(pk1426) comparing to in N2 at embryo stage. DESeq2v 1.18.1, fold change > 1.5, adjusted p-value < 0.01. WBPaper00056169:rrf-3(pk1426)_upregulated_embryo
  Transcripts that showed significantly increased expression after four-day-old young adult worms were placed on NGM plates seeded with OP50 in the presence 5% Agaro-oligosaccharides(AGO) for 24 h, comparing to animals grown in the absence of AGO. Fold change > 2. WBPaper00064306:Agaro-oligosaccharides_upregulated
  Transcripts that showed significantly increased expression in sin-3(tm1276) comparing to in N2. DESeq2, fold change > 2, p-value < 0.01. WBPaper00061203:sin-3(tm1276)_upregulated
  Transcripts that showed significantly increased expression in aak-1(tm1944);aak-2(ok524) animals comparing to in N2. DEseq 1.18.0, adjusted p-value < 0.05. WBPaper00056471:aak-1(tm1944);aak-2(ok524)_upregulated
Bacteria infection: Staphylococcus aureus MW2. 4 hours of exposure. Transcripts that showed significantly increased expression after N2 animals had 4 hours of infection by Staphylococcus aureus (MW2). DEseq 1.18.0, adjusted p-value < 0.05. WBPaper00056471:S.aureus-4h_upregulated_N2
  Transcripts that showed significantly decreased expression in N2 animals exposed to 0.1mM Paraquat from hatching to reaching adult stage. DESeq2 version 1.22.2, p < 0.05 WBPaper00064716:paraquat_downregulated
  Transcripts that showed significantly decreased expression in sin-3(tm1276) comparing to in N2 at early embryo when there were only 3 -5 eggs in the adult. DESeq2, fold change > 2, adjusted p-value < 0.01 WBPaper00058598:sin-3(tm1276)_downregulated
  Expression Pattern Group C, enriched for genes involved in metabolic processes. The significance (P 0.0001) of the relative age (time) was used to determine if a gene was differentially expressed between the three age (time) groups. The effect of this factor explaining gene expression differences was used to determine if the expression went up or down during the two age/time periods (t1 - t2 and t2 -t3). Authors used a permutation approach to determine the thresholds for the different mapping strategies. For each of the used models for eQTL mapping, authors used 23,000 permutations. For each permutation, authors randomly picked a spot; each spot could only be picked once. The gene expression and relative lifespan values were than randomly distributed over the RILs (and time points) and used for mapping. In this way, authors obtained a threshold for each of the explaining factors. For the single time points, authors used a FDR of 0.01 to adjust for multiple testing. The genome-wide threshold for this FDR is -log10 P = 3.8 for each of the three time points. For the combined models (t1 to t2 and t2 to t3), authors used a genome-wide threshold of -log10 P = 4, which resembles an FDR of 0.006, 0.001, and 0.006 for marker, age, and the interaction between marker and age, respectively. To determine the threshold for the single gene examples, authors used 1000 permutations as in the genome-wide threshold. The difference is that they use the gene under study in all of the permutations. The P-values for the gene specific thresholds were determined at FDR = 0.05. WBPaper00036286:Pattern_C
  Transcripts depleted in purified oocyte P bodies comparing to in the whole animal. DESeq2, FDR < 0.05, fold change > 2. WBPaper00065975:P-body_vs_WholeAnimal_depleted
  Proteins that showed significantly decreased expression after 1-day-old wild type adults were exposed to cisplatin (300ug per mL) for 6 hours. The differential expression analysis was performed in R. Differentially expressed proteins were identified by using a two-sided t-test on log-transformed data. WBPaper00065373:Cisplatin_downregulated_WT
  Transcripts that showed significantly increased expression in hda-1(ne4752[3xFLAG-Degron-HDA-1]) in gonads dissected from 1-day old adult animals. Salmon was used to map the mRNA-seq reads with the worm database WS268, and its output files were imported to DESeq2 in R. The differentially expressed genes were filtered by fold change more than 2 and adjusted p-value < 0.05. The scatter plots were generated by the plot function in R. WBPaper00061479:hda-1(ne4752)_upregulated
  Genes that showed expression levels higher than the corresponding reference sample (L3/L4 all cell reference). A Mann-Whitney U test with an empirical background model and FDR correction for multiple testing was used to detect expressed transcripts (Benjamini and Hochberg 1995). Genes and TARs with an FDR <= 0.05 were reported as expressed above background. Authors detected differentially expressed transcripts using a method based on linear models. Genes and TARs were called differentially expressed if the FDR was <= 0.05 and the fold change (FC) >= 2.0. To more strictly correct for potential false-positives resulting from multiple sample comparisons, authors divided individual FDR estimates by the number of samplesor sample comparisons, respectively. This resulted in an adjusted FDR of 1.3 * 0.0001 for expression above background and of 7.4 * 0.0001 for differential expression. Authors called genes selectively enriched in a given tissue if they met the following requirements: (1) enriched expression in a given tissue (FDR <= 0.05 and FC >= 2.0), (2) fold change versus reference among the upper 40% of the positive FC range observed for this gene across all tissues, and (3) fold-change entropy among the lower 40% of the distribution observed for all genes. WBPaper00037950:dopaminergic-neurons_L3-L4-larva_expressed
  Transcripts that showed significantly increased expression in mep-1(ne4629[MEP-1-GFP-Degron]) in gonads dissected from 1-day old adult animals. Salmon was used to map the mRNA-seq reads with the worm database WS268, and its output files were imported to DESeq2 in R. The differentially expressed genes were filtered by fold change more than 2 and adjusted p-value < 0.05. The scatter plots were generated by the plot function in R. WBPaper00061479:mep-1(ne4629)_upregulated
  Transcripts that showed significantly increased expression in ubc-9(ne4833[ubc-9(G56R)] in gonads dissected from 1-day old adult animals. Salmon was used to map the mRNA-seq reads with the worm database WS268, and its output files were imported to DESeq2 in R. The differentially expressed genes were filtered by fold change more than 2 and adjusted p-value < 0.05. The scatter plots were generated by the plot function in R. WBPaper00061479:ubc-9(ne4833)_upregulated
  Genes that showed expression levels higher than the corresponding reference sample (L2 all cell reference). A Mann-Whitney U test with an empirical background model and FDR correction for multiple testing was used to detect expressed transcripts (Benjamini and Hochberg 1995). Genes and TARs with an FDR <= 0.05 were reported as expressed above background. Authors detected differentially expressed transcripts using a method based on linear models. Genes and TARs were called differentially expressed if the FDR was <= 0.05 and the fold change (FC) >= 2.0. To more strictly correct for potential false-positives resulting from multiple sample comparisons, authors divided individual FDR estimates by the number of samplesor sample comparisons, respectively. This resulted in an adjusted FDR of 1.3 * 0.0001 for expression above background and of 7.4 * 0.0001 for differential expression. Authors called genes selectively enriched in a given tissue if they met the following requirements: (1) enriched expression in a given tissue (FDR <= 0.05 and FC >= 2.0), (2) fold change versus reference among the upper 40% of the positive FC range observed for this gene across all tissues, and (3) fold-change entropy among the lower 40% of the distribution observed for all genes. WBPaper00037950:intestine_L2-larva_expressed
  Genes that showed expression levels higher than the corresponding reference sample (L3/L4 all cell reference). A Mann-Whitney U test with an empirical background model and FDR correction for multiple testing was used to detect expressed transcripts (Benjamini and Hochberg 1995). Genes and TARs with an FDR <= 0.05 were reported as expressed above background. Authors detected differentially expressed transcripts using a method based on linear models. Genes and TARs were called differentially expressed if the FDR was <= 0.05 and the fold change (FC) >= 2.0. To more strictly correct for potential false-positives resulting from multiple sample comparisons, authors divided individual FDR estimates by the number of samplesor sample comparisons, respectively. This resulted in an adjusted FDR of 1.3 * 0.0001 for expression above background and of 7.4 * 0.0001 for differential expression. Authors called genes selectively enriched in a given tissue if they met the following requirements: (1) enriched expression in a given tissue (FDR <= 0.05 and FC >= 2.0), (2) fold change versus reference among the upper 40% of the positive FC range observed for this gene across all tissues, and (3) fold-change entropy among the lower 40% of the distribution observed for all genes. WBPaper00037950:PVD-OLL-neurons_L3-L4-larva_expressed
  Transcripts that showed significantly increased expression in ilc-17.1(syb5296) comparing to in N2 animals at L4 larva stage. DESeq2, fold change > 2, FDR < 0.05. WBPaper00066594:ilc-17.1(syb5296)_upregulated
  Transcripts that showed significantly increased expression in hda-2(ok1479) comparing to in N2 animals. DESeq2 (version 1.28.1), FDR < 0.01, fold change > 2. WBPaper00062159:hda-2(ok1479)_upregulated

7 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
    Expr1031269 Tiling arrays expression graphs  
Picture: Fig. 3.   Expr9160 Expression of itx-1prom::gfp was observed in the intestinal tract of embryos from 1.5-fold stage throughout post-embryonic larval development and adulthood. Furthermore, GFP could be detected in socket cells ensheathing the inner and outer labial neurons. Expression could also be observed in the spermatheca and vulva muscle cells. No other cell type displays consistent reporter gene expression.  
Picture: Fig. 5A to 5C.   Expr9162 Whole mount antibody staining established the expression of the protein at the baso-lateral membranes of gut epithelia in embryonic and post-embryonic stages. Its expression was restricted to gut and was not observed in other polarized epithelia, such as the pharynx or post-embryonic vulva, uterus, and hypodermis. Immunoelectron microscopy experiments confirmed localization of ITX-1 to intestinal adherens junctions. ITX-1 defines a lateral membrane domain basal to the apical junction. However, ITX-1 staining along the apical junction appears as a wider belt differently than the typical AJM/DLG pattern. Moreover, ITX-1 localization is independent of AJM-1, as ajm-1 null mutant embryos show normal ITX-1 staining. Co-labeling of ITX-1 with anti beta-G Spectrin show that it co-localizes with ITX-1 along the entire lateral membrane of gut epithelia.
    Expr2012877 Single cell embryonic expression. Only cell types with an expression fraction of greater 0.2 of the maximum expressed fraction are labeled (Full data can be downloaded from http://caltech.wormbase.org/pub/wormbase/datasets-published/packer2019/). The colors represent the broad cell class to which the cell type has been assigned. The size of the point is proportional to the log2 of the numbers of cells in the dataset of that cell type. Interactive visualizations are available as a web app (https://cello.shinyapps.io/celegans/) and can also be installed as an R package (https://github.com/qinzhu/VisCello.celegans).  
    Expr1158225 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015  
    Expr2031111 Single cell embryonic expression. Only cell types with an expression fraction of greater 0.2 of the maximum expressed fraction are labeled (Full data can be downloaded from http://caltech.wormbase.org/pub/wormbase/datasets-published/packer2019/). The colors represent the broad cell class to which the cell type has been assigned. The size of the point is proportional to the log2 of the numbers of cells in the dataset of that cell type. Interactive visualizations are available as a web app (https://cello.shinyapps.io/celegans/) and can also be installed as an R package (https://github.com/qinzhu/VisCello.celegans).  
    Expr1013654 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012  

3 GO Annotation

Annotation Extension Qualifier
  located_in
  located_in
  located_in

7 Homologues

Type
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue

1 Locations


Feature . Primary Identifier
Start End Strand
WBGene00002174 2802803 2815830 1

3 Ontology Annotations

Annotation Extension Qualifier
  located_in
  located_in
  located_in

0 Regulates Expr Cluster

1 Sequence

Length
13028

1 Sequence Ontology Term