WormMine: Gene WBGene00002150

• WormBase Gene ID: WBGene00002150
• Gene Name: irk-2
• Sequence Name: M02A10.2
• Brief Description: irk-2 encodes an inwardly rectifying potassium channel based on sequence homology to the the human potassium channel genes KCNJ1/KCNJ2.
• Organism: Caenorhabditis elegans
• Automated Description: Predicted to enable inward rectifier potassium channel activity. Predicted to be involved in potassium ion import across plasma membrane and regulation of monoatomic ion transmembrane transport. Predicted to be located in plasma membrane. Predicted to be part of monoatomic ion channel complex. Expressed in intestine; pharyngeal-intestinal valve cell; spermatheca; and uterus. Human ortholog(s) of this gene implicated in several diseases, including glucose metabolism disease (multiple); heart conduction disease (multiple); and long QT syndrome (multiple). Is an ortholog of several human genes including KCNJ2 (potassium inwardly rectifying channel subfamily J member 2); KCNJ4 (potassium inwardly rectifying channel subfamily J member 4); and KCNJ5 (potassium inwardly rectifying channel subfamily J member 5).
• Biotype: SO:0001217
• Genetic Position: X :-19.5082±
• Length (nt): 11528

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00002150

Genomics

7 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:M02A10.2c.1	M02A10.2c.1	1673	X: 702971-714498
Transcript:M02A10.2b.1	M02A10.2b.1	1487	X: 703029-709999
Transcript:M02A10.2e.1	M02A10.2e.1	1494	X: 703130-714478
Transcript:M02A10.2f.1	M02A10.2f.1	1485	X: 703130-714478
Transcript:M02A10.2a.1	M02A10.2a.1	2012	X: 703233-710007
Transcript:M02A10.2d.1	M02A10.2d.1	2005	X: 703233-710009
Transcript:M02A10.2a.2	M02A10.2a.2	2090	X: 703233-714465

Other

6 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:M02A10.2c	M02A10.2c	1395	X: 703130-703164
CDS:M02A10.2e	M02A10.2e	1494	X: 703130-703164
CDS:M02A10.2d	M02A10.2d	1383	X: 703845-703988
CDS:M02A10.2a	M02A10.2a	1392	X: 703845-703988
CDS:M02A10.2b	M02A10.2b	1386	X: 703130-703164
CDS:M02A10.2f	M02A10.2f	1485	X: 703130-703164

2 RNAi Result

• WBRNAi00050801
• WBRNAi00017113

166 Allele

• gk963652
• gk963725
• gk963812
• WBVar01600356
• WBVar01600354
• WBVar01600355
• WBVar00074430
• WBVar00074434
• WBVar00074433
• WBVar00074432
• WBVar00074431
• WBVar00074438
• WBVar00074437
• WBVar00074436
• WBVar00074435
• WBVar00074439
• WBVar00074423
• WBVar00074422
• WBVar00074421
• WBVar00074420
• WBVar00074427
• WBVar00074426
• WBVar00074425
• WBVar00074424
• WBVar00074429
• WBVar00074428
• WBVar01979067
• WBVar01979066
• WBVar01979065
• WBVar01979064

1 Chromosome

• WormBase ID: X
• Organism: Caenorhabditis elegans
• Length (nt): 17718942

1 Chromosome Location

• Feature . Primary Identifier: WBGene00002150
• Start: 702971
• End: 714498
• 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

89 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
	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
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
	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
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
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
	Transcripts that showed significantly higher expression in somatic gonad precursor cells (SGP) vs. head mesodermal cells (hmc).	DESeq2, fold change >= 2, FDR <= 0.01.	WBPaper00056826:SGP_biased
	Transcripts that showed significantly increased expression in day 1 adult hermaphrodite comparing to in L4 larva daf-16(mu86);glp-1(e2141) animals.	Fold change > 2, FDR < 0.05	WBPaper00064088:Day-1-adult_vs_L4_upregulated_daf-16(mu86);glp-1(e2141)
	Transcripts that showed significantly increased expression in day 1 adult hermaphrodite comparing to in L4 larva glp-1(e2141) animals.	Fold change > 2, FDR < 0.05	WBPaper00064088:Day-1-adult_vs_L4_upregulated_glp-1(e2141)
	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 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
	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:glr-1(+)-neurons_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
	Transcripts that showed significantly decreased 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_downregulated
	Transcripts that showed significantly decreased expression after animals were treated with 100uM Rapamycin and 250uM Allantoin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rapamycin-Allantoin_downregulated
	Transcripts that showed significantly decreased 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_downregulated
	Transcripts that showed significantly decreased expression after animals were treated with 100uM Rapamycin and 50uM Rifampicin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rapamycin-Rifampicin_downregulated
	Transcripts that showed significantly decreased expression after animals were treated with 50uM Rifampicin and 250uM Allantoin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rifampicin-Allantoin_downregulated
Starvation	Transcripts that showed significantly altered expression by starvation with 100 mM salt (NaCl)	DESeq(version 1.10.1), FDR < 0.05.	WBPaper00050726:starvation_regulated_LowSalt
	Transcripts that showed significantly decreased expression in nhl-2(ok818) comparing to in N2 at 25C.	EdgeR, FDR < 0.05, fold change < 0.5.	WBPaper00055971:nhl-2(ok818)_25C_upregulated

7 Expression Patterns

• Primary Identifier: Expr16176
• Pattern: As for IRK-1, IRK-2 is also expected by be targeted to the plasma membrane. The most notable cells labeled by irk-2 promoter expression were neurons of the anterior ganglia, the pharyngeal intestinal valve cell, and the posterior intestine, where again clear basolateral plasma membrane targeting can be observed. In adults, the spermatheca and the uterus were prominently labeled, and the IRK-2 fusion protein resided in the plasma membrane. It is interesting that irk gene expression was notably absent in muscle and hypodermal cells.

• Primary Identifier: Expr2012824
• 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: Expr1154493
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr16177
• Subcellular Localization: Clear basolateral plasma membrane targeting can be observed in the intestine.

• Primary Identifier: Expr16178
• Subcellular Localization: In adults, the spermatheca and the uterus were prominently labeled, and the IRK-2 fusion protein resided in the plasma membrane.

• Primary Identifier: Expr2031062
• 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: Expr1015830
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

12 GO Annotation

65 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00002150
• Start: 702971
• End: 714498
• Strand: -1

12 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 11528

1 Sequence Ontology Term

• Name: gene

3 Strains

• WBStrain00037929
• WBStrain00039809
• WBStrain00047557

1 Upstream Intergenic Region

• WormBase ID: intergenic_region_chrX_714499..720236
• Length (nt): 5738
• Chromosome Location: X: 714499-720236
• Organism: Caenorhabditis elegans