WormMine: Gene WBGene00001374

• WormBase Gene ID: WBGene00001374
• Gene Name: exp-2
• Sequence Name: F12F3.1
• Brief Description: exp-2 encodes a member of the six-transmembrane voltage-activated (Kv-type) family of potassium channels; exp-2 is required for normal pharyngeal muscle action potentials and hence, for normal feeding behavior; in addition, exp-2 is required for chemotaxis; when expressed in Xenopus oocytes, EXP-2 displays inward rectifying currents, however when assessed in endogenous pharyngeal tissue, EXP-2 displays hyperpolarization-activated outward currents; an EXP-2 translational reporter fusion is expressed strongly in pharyngeal muscles, amphid, phasmid, and head neurons, posterior enteric muscles, and occasionally faintly in the egg-laying muscles.
• Organism: Caenorhabditis elegans
• Automated Description: Enables inward rectifier potassium channel activity. Involved in potassium ion transmembrane transport. Predicted to be located in membrane. Predicted to be part of voltage-gated potassium channel complex. Expressed in intestinal cell; muscle cell; nerve ring; neurons; and pharyngeal muscle cell. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 26. Is an ortholog of human KCNF1 (potassium voltage-gated channel modifier subfamily F member 1).
• Biotype: SO:0001217
• Genetic Position: V :-0.262655 ±0.010268
• Length (nt): 12571

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00001374

Genomics

11 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:F12F3.1a.2	F12F3.1a.2	2173	V: 6131400-6143970
Transcript:F12F3.1a.3	F12F3.1a.3	2424	V: 6135266-6143970
Transcript:F12F3.1a.4	F12F3.1a.4	2127	V: 6137996-6143970
Transcript:F12F3.1a.5	F12F3.1a.5	4307	V: 6139414-6143970
Transcript:F12F3.1a.6	F12F3.1a.6	2136	V: 6139836-6143970
Transcript:F12F3.1d.1	F12F3.1d.1	1506	V: 6139916-6143420
Transcript:F12F3.1a.7	F12F3.1a.7	2266	V: 6140803-6143970
Transcript:F12F3.1a.8	F12F3.1a.8	2221	V: 6140872-6143970
Transcript:F12F3.1b.1	F12F3.1b.1	1585	V: 6140958-6143420
Transcript:F12F3.1c.1	F12F3.1c.1	1533	V: 6141010-6143420
Transcript:F12F3.1a.1	F12F3.1a.1	1602	V: 6141471-6143536

Other

4 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:F12F3.1d	F12F3.1d	1506	V: 6139916-6139935
CDS:F12F3.1c	F12F3.1c	1533	V: 6141010-6141056
CDS:F12F3.1b	F12F3.1b	1473	V: 6141484-6141494
CDS:F12F3.1a	F12F3.1a	1410	V: 6141761-6141988

6 RNAi Result

• WBRNAi00089832
• WBRNAi00044446
• WBRNAi00013165
• WBRNAi00089883
• WBRNAi00090043
• WBRNAi00090201

162 Allele

• gk963301
• gk963591
• gk963553
• gk963042
• gk963041
• gk964259
• gk964351
• gk963850
• gk765468
• gk532314
• gk236611
• WBVar00210090
• gk236619
• gk687689
• gk468336
• gk937510
• sa26
• sa26ad1426
• WBVar01973721
• WBVar01973722
• WBVar02023742
• WBVar02023741
• WBVar01822080
• gk236617
• gk236618
• gk236615
• gk236616
• gk236613
• gk236614
• WBVar00027136

1 Chromosome

• WormBase ID: V
• Organism: Caenorhabditis elegans
• Length (nt): 20924180

1 Chromosome Location

• Feature . Primary Identifier: WBGene00001374
• Start: 6131400
• End: 6143970
• Strand: 1

4 Data Sets

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

0 Downstream Intergenic Region

181 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 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
	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
	TGF- Dauer pathway adult transcriptional targets. Results obtained by comparing the microarray results of the dauer-constitutive mutants daf-7(e1372), daf-7(m62), and daf-1(m40) with dauer-defective mutants daf-3(mgDf90), daf-5(e1386), and daf-7(e1372);daf-3(mgDf90) double mutants at the permissive temperature, 20C, on the first day of adulthood.	SAM	WBPaper00031040:TGF-beta_adult_upregulated
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
	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
Bacteria: E.faecalis strain OG1RF	Transcripts that showed significantly increased expression after infection by E. faecalis OG1RF.	Ballgown was used to calculate differential expression of genes using FPKM data and to generate tables with fold change and P values. Genes were shortlisted with a cutoff of 2-fold change and P values of less than 0.05.	WBPaper00059754:E.faecalis_OG1RF_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 that showed significantly increased expression in ogt-1(ok1474) neuronal cells isolated by FACs comparing to in FACs isolated neuronal cells from wild type.	DESeq2, fold change > 2, FDR < 0.05.	WBPaper00066485:ogt-1(ok1474)_upregulated_neuron
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_TilingArray
	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 that showed significantly decreased expression at 5-days-post L4 adult N2 hermaphrodites comparing to 1-day-post L4 adult N2 hermaphrodites.	DESeq2, fold change > 2, FDR < 0.05	WBPaper00065835:Day5_vs_Day1_downregulated
	Transcripts expressed in pharynx, according to PAT-Seq analysis using Pmyo-2-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:pharynx_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
	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)
	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
	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 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
	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
	Transcripts that showed significantly altered expression at URX, AQR, and PQR neurons in camt-1(ok515) animals comparing to in wild type AX1888-1 strain.	RNA-seq data were mapped using PRAGUI - a Python 3-based pipeline for RNA-seq data analysis.	WBPaper00061902:camt-1(ok515)_regulated_URX-AQR-PQR
	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 increased expression in npr-15(tm12539) comparing to in N2 at L4 larva stage.	Fold change > 2, FDR < 0.05.	WBPaper00066608:npr-15(tm12539)_upregulated

8 Expression Patterns

• Primary Identifier: Expr1030828
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr1027
• Pattern: In transgenic worms, the GFP fusion protein was expressed strongly in pharyngeal muscle, in the intestinal muscles, and occasionally faintly in the egg-laying muscles. The reporter was also expressed in several neurons of the nerve ring ganglia.

• Primary Identifier: Expr2011409
• 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: Expr1021455
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

• Primary Identifier: Expr12746
• Subcellular Localization: EXP-2 showed ubiquitous distribution into soma, dendrite and axon regions of DA9. KVS-4 displayed polarized targeting to the somatodendritic region of DA9 in terms of polarity index (axon-to-dendrite mean intensity ratio). The subcellular localization of KVS-4 in DA9 is not directly associated with ER or Golgi structures distribution in vivo.

• Primary Identifier: Expr1148393
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Chronogram1231
• Remark: Original chronogram file: chronogram.2353.xml
• Reporter Gene: [F12F3.1:gfp] transcriptional fusion.

• Primary Identifier: Expr2029645
• 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).

21 GO Annotation

43 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00001374
• Start: 6131400
• End: 6143970
• Strand: 1

21 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 12571

1 Sequence Ontology Term