WormMine: Gene WBGene00006663

• WormBase Gene ID: WBGene00006663
• Gene Name: twk-8
• Sequence Name: ZC410.4
• Brief Description: twk-8 encodes one of more than 40 TWK (two-P domain K+) potassium channels in C. elegans that contain two pore regions and four transmembrane domains; expressed in body-wall muscle.
• 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 body wall musculature.
• Biotype: SO:0001217
• Genetic Position: IV :4.02731 ±0.001297
• Length (nt): 5225

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00006663

Genomics

2 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:ZC410.4b.1	ZC410.4b.1	2513	IV: 9082355-9087579
Transcript:ZC410.4a.1	ZC410.4a.1	2533	IV: 9082361-9087563

Other

2 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:ZC410.4a	ZC410.4a	2310	IV: 9082363-9082437
CDS:ZC410.4b	ZC410.4b	2268	IV: 9082363-9082437

4 RNAi Result

• WBRNAi00058895
• WBRNAi00021683
• WBRNAi00038044
• WBRNAi00024261

63 Allele

• gk964278
• gk964500
• gk962765
• gk962666
• gk963135
• h8527
• h8970
• h12938
• WBVar01453568
• ttTi23932
• WBVar01453567
• WBVar01453570
• WBVar01453569
• gk208325
• gk586071
• gk618452
• gk208323
• WBVar01453566
• WBVar01730343
• gk208324
• gk397686
• gk441166
• gk906712
• gk546131
• gk784750
• gk553296
• gk869778
• gk716968
• gk843480
• WBVar01846945

1 Chromosome

• WormBase ID: IV
• Organism: Caenorhabditis elegans
• Length (nt): 17493829

1 Chromosome Location

• Feature . Primary Identifier: WBGene00006663
• Start: 9082355
• End: 9087579
• Strand: 1

4 Data Sets

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

1 Downstream Intergenic Region

• WormBase ID: intergenic_region_chrIV_9087580..9088593
• Length (nt): 1014
• Chromosome Location: IV: 9087580-9088593
• Organism: Caenorhabditis elegans

161 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	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
	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:bodywall-muscle_L1-larva_expressed
	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 that showed significantly increased expression after animals were treated with 50uM Rifampicin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rifampicin_upregulated
	Transcripts that showed significantly increased expression after animals were treated with 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:Psora-Allantoin_upregulated
	Transcripts that showed significantly increased expression after animals were treated with 100uM Rapamycin and 50mM Metformin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rapamycin-Metformin_upregulated
	Proteins interacting with NHR-49-GFP according to co-IP and LC-MS.	N.A.	WBPaper00064071:NHR-49_interacting
	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 expressed in intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:intestine_expressed
	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	mRNAs that showed significantly decreased expression after pathogenic bacteria Bacillus thuringiensis infections comparing to non pathogenic BT (BT247(1 to 10 mix) vs BT407 12h), according to RNAseq.	Cuffdiff, ajusted p-value < 0.01.	WBPaper00046497:B.thuringiensis_0.1mix_downregulated_12h
	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
	mRNAs that showed differential expression in activated AAK-2(uthIs202[aak-2 (intron 1)::aak-2(aa1-aa321)::Tomato::unc-54 3'UTR + rol-6(su1006)]), activiated CRTC-1 (uthEx222[crtc-1p::crtc-1 cDNA (S76S, S179A)::tdTomato::unc-54 3'UTR + rol-6(su1006)]), or AAK-2;CRTC-1 comparing to in N2.	Genes were tested for differential expression between each mutant strain and wild-type using edgeRs glm method. Briefly, negative binomial models were fitted and dispersion estimates obtained. These were then used to calculate average levels of change between conditions and determine differential expression, using the generalized linear model likelihood ratio test. For each comparison, genes with less than 5 CPM were filtered and those with at least 50% change and False Discovery Rate (FDR) of 1% or less were considered differentially expressed.	WBPaper00046499:AMPK_regulated
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 increased expression in alg-1(gk214), comparing to in N2.	DESeq2, Fold change > 1.5.	WBPaper00051404:alg-1(gk214)_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
	Genes that showed significantly increased expression in daf-2(e1370) comparing to in N2.	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_N2-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 changed expression in 6-day post-L4 adult hermaphrodite comparing to in 1-day post L4 adult hermaphrodite animals.	Sleuth	WBPaper00051558:aging_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
	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
	Transcripts detected in body muscle nuclei according to a nuclear FACS-based strategy.	Cufflinks	WBPaper00065120:body-muscle-transcriptome
	Transcripts that showed significantly increased expression in xrep-4(lax137).	DESeq2. Genes were selected if their p value < 0.01.	WBPaper00066062:xrep-4(lax137)_upregulated
	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 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

• Primary Identifier: Expr2035818
• Pattern: 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).

• Primary Identifier: Expr1162331
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr1032767
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr2446
• Pattern: Expressed in body-wall muscle.

• Primary Identifier: Expr2017680
• Pattern: 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).

• Primary Identifier: Expr1017012
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

11 GO Annotation

10 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00006663
• Start: 9082355
• End: 9087579
• Strand: 1

11 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 5225

1 Sequence Ontology Term

• Name: gene

0 Strains

1 Upstream Intergenic Region

• WormBase ID: intergenic_region_chrIV_9080301..9082354
• Length (nt): 2054
• Chromosome Location: IV: 9080301-9082354
• Organism: Caenorhabditis elegans