WormMine

WS294

Intermine data mining platform for C. elegans and related nematodes

Gene :

WormBase Gene ID  ? WBGene00006668 Gene Name  twk-13
Sequence Name  ? R04F11.4 Brief Description  twk-13 encodes one of 44 C. elegans TWK (two-P domain K+) potassium channel subunits that contain two pore-forming domains and four transmembrane domains; as loss of TWK-13 function via RNA-mediated interference (RNAi) does not result in any abnormalities, the precise role of TWK-13 in C. elegans development and/or behavior is not yet known; however, TWK-13 likely functions redundantly with other TWK channels; the TWK-13 expression pattern has not been determined.
Organism  Caenorhabditis elegans Automated Description  Predicted to enable outward rectifier potassium channel activity and potassium ion leak channel activity. Predicted to be involved in potassium ion transmembrane transport and stabilization of membrane potential. Predicted to be located in plasma membrane. Expressed in cholinergic neurons and ventral cord neurons.
Biotype  SO:0001217 Genetic Position  V :3.99986 ±0.000794
Length (nt)  ? 17825
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1 Organism

Name Taxon Id
Caenorhabditis elegans 6239

1 Synonyms

Value
WBGene00006668

Genomics

4 Transcripts

WormMine ID Sequence Name Length (nt) Chromosome Location
Transcript:R04F11.4a.1 R04F11.4a.1 2094   V: 12320170-12332117
Transcript:R04F11.4c.1 R04F11.4c.1 2318   V: 12320172-12337994
Transcript:R04F11.4b.1 R04F11.4b.1 2562   V: 12320173-12328727
Transcript:R04F11.4d.1 R04F11.4d.1 1773   V: 12320560-12336705
 

Other

4 CDSs

WormMine ID Sequence Name Length (nt) Chromosome Location
CDS:R04F11.4b R04F11.4b 1878   V: 12320560-12320668
CDS:R04F11.4c R04F11.4c 1839   V: 12320560-12320668
CDS:R04F11.4d R04F11.4d 1773   V: 12320560-12320668
CDS:R04F11.4a R04F11.4a 1704   V: 12320560-12320668

4 RNAi Result

WormBase ID
WBRNAi00051252
WBRNAi00051253
WBRNAi00017414
WBRNAi00092869

228 Allele

Public Name
gk963271
gk963301
gk964458
gk964459
gk963618
WBVar02061338
WBVar02061339
WBVar02061340
WBVar02061341
WBVar02061342
WBVar02061343
WBVar02061344
WBVar02061345
WBVar02061346
WBVar00007265
gk926024
gk387932
gk348620
gk894857
gk249325
gk712424
otn12443
gk551263
gk611947
gk249340
WBVar01867018
gk731055
gk249324
gk343704
gk380026

1 Chromosome

WormBase ID Organism Length (nt)
V Caenorhabditis elegans 20924180  

1 Chromosome Location


Feature . Primary Identifier
Start End Strand
WBGene00006668 12320170 12337994 -1

4 Data Sets

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

0 Downstream Intergenic Region

174 Expression Clusters

Regulated By Treatment Description Algorithm Primary Identifier
  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 expressed in neuronal cells, by analyzingfluorescence-activated cell sorted (FACS) neurons. DESeq. False discovry rate (FDR) < 0.1. WBPaper00048988:neuron_expressed
  Genes significantly enriched (> 2x, FDR < 5%) in a particular cell-type versus a reference sample of all cells at the same stage. 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:A-class-motor-neurons_larva_enriched
  Genes that showed expression levels higher than the corresponding reference sample (embryonic 24hr 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:all-neurons_L1-larva_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
  Neuronally enriched transcripts according to a comparison of neuronal nuclei IP samples to total nuclei using isolation of nuclei from tagged specific cell types (INTACT) technology. DESEQ2, fold change > 2 and FDR < 0.01. WBPaper00062103:neuron_enriched
  Genes that showed increased expression in wdr-5(ok1417) comparing with in N2. Statistical analysis for misexpression was performed using a moderated t test from the package limma. All genes with a false discovery rate (FDR) of <= 5% (p <= 0.05) were selected as differentially regulated. WBPaper00045861:wdr-5(ok1417)_upregulated
  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
  Transcripts expressed in GABAergic neuron, according to PAT-Seq analysis using Punc-47-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:GABAergic-neuron_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 NMDA neuron, according to PAT-Seq analysis using Pnmr-1-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:NMDA-neuron_expressed
  Genes with expression level regulated by genotype (N2 vs CB4856) and age at L3 larva and Late reproduction stage (96 hours at 24 centigrade). For model 2, authors used 100 permutations to estimate the FDR threshold. Per permutation, genotypes and ages were independently randomly distributed, keeping the among-gene structure intact. Then for each spot (23,232) on the array, model 2 was tested. The obtained P-values were used to estimate a threshold for each of the explanatory factors. Authors also used a genome-wide threshold of -log10 P-value = 2, which resembles an FDR of 0.072 and 0.060 for marker and the interaction age-marker for the developing worms and FDR of 0.050 and 0.065 for marker and age-marker for the aging worms. For the physiological age effect, authors used a log10 P-value = 8 in developing worms (0.012 FDR) and -log10 P-value = 6 (0.032 FDR). WBPaper00040858:eQTL_age_regulated_developing
  Genes with expression level regulated by genotype (N2 vs CB4856) at L3 larva and Late reproduction stage (96 hours at 24 centigrade). For model 2, authors used 100 permutations to estimate the FDR threshold. Per permutation, genotypes and ages were independently randomly distributed, keeping the among-gene structure intact. Then for each spot (23,232) on the array, model 2 was tested. The obtained P-values were used to estimate a threshold for each of the explanatory factors. Authors also used a genome-wide threshold of -log10 P-value = 2, which resembles an FDR of 0.072 and 0.060 for marker and the interaction age-marker for the developing worms and FDR of 0.050 and 0.065 for marker and age-marker for the aging worms. For the physiological age effect, authors used a log10 P-value = 8 in developing worms (0.012 FDR) and -log10 P-value = 6 (0.032 FDR). WBPaper00040858:eQTL_regulated_developing
  Transcripts that showed significantly decreased expression in day 3 adult hermaphrodite comparing to in L4 larva daf-16(mu86);glp-1(e2141) animals. Fold change > 2, FDR < 0.05 WBPaper00064088:Day-3-adult_vs_L4_downregulated_daf-16(mu86);glp-1(e2141)
  Transcripts that showed significantly decreased expression in day 3 adult hermaphrodite comparing to in L4 larva glp-1(e2141) animals. Fold change > 2, FDR < 0.05 WBPaper00064088:Day-3-adult_vs_L4_downregulated_glp-1(e2141)
Bacteria infection: Bacillus thuringiensis Transcripts that showed significantly increased expression in N2 animals infected by bacteria BMB171/Cry5Ba, an acrystalliferous Bt mutant BMB171 transformed with toxin gene cry5Ba on the shuttle vector pHT304, comparing to N2 animals infected by BMB171/pHT304. N.A. WBPaper00064229:B.thuringiensis-Cry5Ba_upregulated
  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
  Genes that showed significantly increased expression in daf-2(e1370);hel-1(gk148684) comparing to in hel-1(gk148684) To identify DEGs, Students t test and the log2 median ratio test were performed to compute t values and median ratios for all the annotated genes. The adjusted P values from each test were computed using an empirical distribution of the null hypothesis, which was obtained from random permutations of the samples. Finally, the adjusted P values from the individual tests were combined to compute the overall P values using Stouffers method , and genes with overall P < 0.05 and fold change > 1.5 were selected as DEGs. WBPaper00047131:daf-2(e1370)_upregulated_hel-1(gk148684)-background
  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 altered expression after 24 hour exposure to stavudine (d4T) starting at L1 lava stage. DESeq WBPaper00053302:stavudine_24h_regulated
  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
  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:A-class-motor-neurons_L2-larva_expressed
  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:all-neurons_L2-larva_expressed
  Transcripts that showed significantly increased expression in animals with germline-specific inx-14(RNAi) comparing to in aniamls fed with control vector, both exposed to PA14 infection. DESeq2. Differentially-expressed genes (DEG) were identified based on two criteria: FDR (False discovery rateusing Benjamini-Hochberg adjusted p-values) < 0.01 and absolute value of log2(Fold Change) > 1. WBPaper00066146:germline-inx-14(RNAi)_upregulated_PA14
  Transcripts that showed significantly increased expression in hpk-1(pk1393) comparing to in N2 at adult day 2. DESeq 2, fold change > 2, FDR < 0.05. WBPaper00065581:hpk-1(pk1393)_upregulated
  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

6 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
    Expr2035781 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).  
    Expr1032769 Tiling arrays expression graphs  
    Expr9868 twk-13 is expressed in cholinergic motor neurons of the ventral nerve cord.  
    Expr1154954 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015  
    Expr2017641 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).  
    Expr1018879 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012  

11 GO Annotation

Annotation Extension Qualifier
  located_in
  located_in
  located_in
  located_in
  involved_in
  involved_in
  involved_in
  involved_in
  enables
  enables
  enables

6 Homologues

Type
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue

1 Locations


Feature . Primary Identifier
Start End Strand
WBGene00006668 12320170 12337994 -1

11 Ontology Annotations

Annotation Extension Qualifier
  located_in
  located_in
  located_in
  located_in
  involved_in
  involved_in
  involved_in
  involved_in
  enables
  enables
  enables

0 Regulates Expr Cluster

1 Sequence

Length
17825

1 Sequence Ontology Term