WormMine

WS294

Intermine data mining platform for C. elegans and related nematodes

Gene :

WormBase Gene ID  ? WBGene00006673 Gene Name  twk-20
Sequence Name  ? C40C9.1 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 muscle cell and neurons. Human ortholog(s) of this gene implicated in Birk-Barel syndrome and primary pulmonary hypertension. Is an ortholog of human KCNK3 (potassium two pore domain channel subfamily K member 3) and KCNK9 (potassium two pore domain channel subfamily K member 9). Biotype  SO:0001217
Genetic Position  X :14.0098 ±0.006152 Length (nt)  ? 2483
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1 Organism

Name Taxon Id
Caenorhabditis elegans 6239

1 Synonyms

Value
WBGene00006673

Genomics

1 Transcripts

WormMine ID Sequence Name Length (nt) Chromosome Location
Transcript:C40C9.1.1 C40C9.1.1 1198   X: 13639877-13642359
 

Other

1 CDSs

WormMine ID Sequence Name Length (nt) Chromosome Location
CDS:C40C9.1 C40C9.1 1095   X: 13639877-13639976

2 RNAi Result

WormBase ID
WBRNAi00042248
WBRNAi00027783

50 Allele

Public Name
gk964260
gk964029
gk962707
gk964028
gk963810
gk963581
WBVar01759998
gk299167
gk299168
gk299169
gk299170
gk299171
gk898442
gk732705
gk609068
gk531996
gk666330
gk956010
nf130
gk504056
gk378947
WBVar01472146
WBVar01472147
WBVar01472144
gk729916
gk472449
gk490327
gk491340
gk488429
gk566334

1 Chromosome

WormBase ID Organism Length (nt)
X Caenorhabditis elegans 17718942  

1 Chromosome Location


Feature . Primary Identifier
Start End Strand
WBGene00006673 13639877 13642359 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

29 Expression Clusters

Regulated By Treatment Description Algorithm Primary Identifier
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
  mRNAs that showed decreased expression in 1 cell mebryo comparing to in oocyte, according to RNAseq analysis. Gaussian error propagation. As cutoff for the up-regulated genes authors used log2 fold change > 1 and P < 0.05 and as cutoff for the down-regulated genes authors used log2 fold change < -1 and P < 0.05. WBPaper00045420:fertilization_downregulated_transcript
  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
  Transcripts that showed significantly increased expression in csr-1a(tor159) comparing to in N2 at 25C. DESeq2, fold change > 2, p-value < 0.05. WBPaper00061753:csr-1(tor159)_upregulated_25C
  Coexpression clique No. 203, sre-33-ZK1025.1_8337, on the genome-wide coexpression clique map for the nematode GPL200 platform. All available microarray datasets for the GPL200 platform (Affymetrix C. elegans Genome Array) were obtained from the GEO repository. This included 2243 individual microarray experiments. These were normalized against each other with the software RMAexpress (Bolstad, 2014). Based on these normalized values, Pearsons correlation coefficients were obtained for each probe-probe pair of the 22,620 probes represented on this array type. The resulting list of correlation coefficients was then ranked to generate the ranked coexpression database with information on each probe represented on the GPL200 platform. WBPaper00061527:sre-33-ZK1025.1_8337
  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
  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
  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
  Transcripts that showed significantly decreased expression in eat-2(ad1116) comparing to in N2 at 3-days post L4 adult hermaphrodite animals. DESeq2(v1.14.1), fold change > 2, p-value < 0.05 WBPaper00055354:eat-2(ad1116)_downregulated
  Genes found to be regulated by low-copy overexpression of sir-2.1 with p < 0.014. N.A. WBPaper00026929:sir-2.1_overexpression_regulated
  Transcripts of coding genes that showed significantly increased 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_enriched_coding-RNA
  Genes expressed in N2. Expressed transcripts were identified on the basis of a Present call in 3 out of 4 N2 experiments as determined by Affymetrix MAS 5.0. WBPaper00025141:N2_Expressed_Genes
heat-shock hlh-1 Genes enriched in HLH-1 heat shock dataset. A two-class unpaired analysis was performed to identify genes that are elevated 1.7-fold or greater when compared with the reference for each dataset, at a false discovery rate of 1.8% or less for M0 and 1.2% or less for the M24 datasets. WBPaper00031003:hlh_1_enriched
  Genes with differential expression under 1.0mg/l Diazinon treatment at 16 centigrade. To identify the differentially expressed genes in each treatment authors used linear models per toxicant and temperature (gene expression = Toxicant (effect) + error). The lm function in R stats package was used to implement the linear models analysis with recommended default options. For threshold determination authors used a permutation approach. For each of the 23,232 permutations used authors randomly picked a transcript (array spot), which could only be picked once. Authors combined all the expression values of this transcript and randomly distributed them over the replicates and used them in the linear model. In this way authors obtained a threshold for each of the toxicants. Authors used a -log10 p-value 2 as common threshold for the analysis, which resembles to the following FDR per toxicant: 0.0155 for CPF at 24 centigrade, 0.0148 for DZN at 24 centigrade, 0.0168 for CPF+DZN at 24 centigrade, 0.0142 for CPF at 16 centigrade, 0.0151 for DZN at 16 centigrade, and 0.0148 for CPF+DZN, at 16 centigrade. WBPaper00037113:Diazinon_16C_regulated
male mating Transcripts that showed significantly decreased expression in sterile glp-1(e2144) animals after exposed to males during day 2 to day 7 adult stage. DESeq2 v.1.10.1, fold change > 2, FDR < 0.05. WBPaper00065315:mating_downregulated_Day2-7
  Transcripts that showed significantly decreased expression after animals were treated with 50uM Rifampicin and 100uM Psora from day 1 to day 3 adult hermaphradite. DESeq2(v1.14.1), fold change > 2, p-value < 0.05 WBPaper00055354:Rifampicin-Psora_downregulated
Bacteria infection: Photorhabdus luminescens Genes with increased expression after 24 hours of infection by P.lumniescens Fold changes shown are pathogen vs OP50. For RNA-seq and tiling arrays, log2 fold changes between gene expression values of infected versus uninfected nematodes were calculated. For log2 fold changes > 0.00001 the values > 81.25th percentile were defined as up-regulated and for log2 fold changes < -0.00001 the values < 18.75th percentile were defined as down-regulated. WBPaper00038438:P.lumniescens_24hr_upregulated_RNAseq
Bacteria infection: Enterococcus faecalis Genes with increased expression after 24 hours of infection by E.faecalis Fold changes shown are pathogen vs OP50. For RNA-seq and tiling arrays, log2 fold changes between gene expression values of infected versus uninfected nematodes were calculated. For log2 fold changes > 0.00001 the values > 81.25th percentile were defined as up-regulated and for log2 fold changes < -0.00001 the values < 18.75th percentile were defined as down-regulated. WBPaper00038438:E.faecalis_24hr_upregulated_RNAseq
  Transcripts that showed significantly increased expression in mex-1(or286) comparing to in N2 at early embryo when there were only 3 -5 eggs in the adult. RPKM fold change > 2. WBPaper00058598:mex-1(or286)_upregulated
  Transcripts that showed significantly increased expression in spn-4(tm291) comparing to in N2 at early embryo when there were only 3 -5 eggs in the adult. RPKM fold change > 2. WBPaper00058598:spn-4(tm291)_upregulated
  Transcripts that showed significantly decreased expression after animals were treated with 100uM Rapamycin, 50uM Rifampicin and 100uM Psora from day 1 to day 3 adult hermaphradite. DESeq2(v1.14.1), fold change > 2, p-value < 0.05 WBPaper00055354:Rapamycin-Rifampicin-Psora_downregulated
  Transcripts that showed significantly increased expression in let-418(n3536);dcp-66(RNAi) comparing to control. DESeq, fold change > 2. WBPaper00062672:let-418(n3536)dcp-66(RNAi)_upregulated
Fungi infection: Harposporium sp. Genes with increased expression after 24 hours of infection by Harposporium Fold changes shown are pathogen vs OP50. For RNA-seq and tiling arrays, log2 fold changes between gene expression values of infected versus uninfected nematodes were calculated. For log2 fold changes > 0.00001 the values > 81.25th percentile were defined as up-regulated and for log2 fold changes < -0.00001 the values < 18.75th percentile were defined as down-regulated. WBPaper00038438:Harposporium_24hr_upregulated_RNAseq
  Transcripts that showed significantly increased expression in tetraploid N2 animals after exposure to 5 uM doxorubicin for 72 hours at 15C from L1 to L4 larve stage. DESeq2 R package (1.20.0), fold change > 2, and FDR < 0.05. WBPaper00066110:Doxorubicin_upregulated_tetraploid
  Transcripts that showed significantly decreased expression after animals were treated with 100uM Rapamycin, 100uM Psora and 250uM Allantoin from day 1 to day 3 adult hermaphradite. DESeq2(v1.14.1), fold change > 2, p-value < 0.05 WBPaper00055354:Rapamycin-Psora-Allantoin_downregulated
  Transcripts that showed significantly increased expression in FACS sorted neuron cells (labelled by pan-neuronal GFP) from edIs6[unc-119::GFP + rol-6(su1006)]; thoc-5(wy822) comparing to in edIs6. DESeq2, log2 fold change > 2, adjusted p-value < 0.005. WBPaper00055103:thoc-5(wy822)_upregulated
  Genes up regulated in the absence of TDP-1, when the threshold was set at a fold change (FC) of 1.2. The management and statistical analysis of the microarray data were performed using the Partek Genomic Suite (Partek, Missouri) and Spotfire DecisionSite software (TIBCO, California). WBPaper00040603:tdp-1(lf)_up_vs_N2_FC_1.2
  Transcripts that showed significantly increased expression in alh-4(hj221) deletion allele comparing to in N2. N.A. WBPaper00061653:alh-4(hj221)_upregulated
  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:GABAergic-motor-neurons_embryo_enriched

5 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
    Expr2035787 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).  
This gene is called n2P20 in the article.   Expr1370 Neurons and muscle.  
    Expr1012496 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012  
    Expr1146239 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015  
    Expr2017647 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).  

13 GO Annotation

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

12 Homologues

Type
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue
orthologue

1 Locations


Feature . Primary Identifier
Start End Strand
WBGene00006673 13639877 13642359 1

13 Ontology Annotations

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

0 Regulates Expr Cluster

1 Sequence

Length
2483

1 Sequence Ontology Term