WormMine: Gene WBGene00003730

• WormBase Gene ID: WBGene00003730
• Gene Name: nhx-2
• Sequence Name: B0495.4
• Brief Description: nhx-2 encodes a sodium/proton exchanger; NHX-2 promotes normal peptide transporter function and recovery from intracellular acid load via catalysis of the electroneutral exchange of extracellular sodium for an intracellular proton; NHX-2 activity is required for normally high growth rates, and for propagation or maintenance of the germline; NHX-2 is expressed in the apical membranes of intestinal cells.
• Organism: Caenorhabditis elegans
• Automated Description: Enables sodium:proton antiporter activity. Involved in several processes, including determination of adult lifespan; positive regulation of growth rate; and regulation of transport. Located in apical plasma membrane. Expressed in intestine. Human ortholog(s) of this gene implicated in several diseases, including autosomal recessive spinocerebellar ataxia 19; congenital secretory sodium diarrhea 8; and end stage renal disease. Is an ortholog of human SLC9A3 (solute carrier family 9 member A3) and SLC9A5 (solute carrier family 9 member A5).
• Biotype: SO:0001217
• Genetic Position: II :0.523763 ±0.005206
• Length (nt): 3247

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00003730

Genomics

1 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:B0495.4.1	B0495.4.1	2054	II: 7690711-7693957

Other

1 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:B0495.4	B0495.4	1935	II: 7690820-7691048

40 RNAi Result

• WBRNAi00113392
• WBRNAi00095477
• WBRNAi00081498
• WBRNAi00096861
• WBRNAi00063353
• WBRNAi00039111
• WBRNAi00109202
• WBRNAi00116138
• WBRNAi00105937
• WBRNAi00106036
• WBRNAi00106079
• WBRNAi00106103
• WBRNAi00109591
• WBRNAi00113394
• WBRNAi00081543
• WBRNAi00024408
• WBRNAi00028172
• WBRNAi00063352
• WBRNAi00108645
• WBRNAi00108570
• WBRNAi00008313
• WBRNAi00096873
• WBRNAi00109397
• WBRNAi00077807
• WBRNAi00096519
• WBRNAi00081523
• WBRNAi00096855
• WBRNAi00109300
• WBRNAi00090582
• WBRNAi00109494

34 Allele

• gk963801
• gk963053
• gk962682
• ok553
• WBVar01375745
• h4215
• gk488012
• gk347062
• gk507842
• gk477832
• gk911121
• gk344010
• gk789544
• gk680211
• gk377655
• gk699966
• gk844716
• gk571306
• gk469203
• gk418743
• gk661746
• gk665453
• WBVar01393817
• gk147415
• gk147414
• gk147413
• WBVar00225884
• WBVar01405294
• WBVar00268834
• WBVar00173557

1 Chromosome

• WormBase ID: II
• Organism: Caenorhabditis elegans
• Length (nt): 15279421

1 Chromosome Location

• Feature . Primary Identifier: WBGene00003730
• Start: 7690711
• End: 7693957
• 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_chrII_7690557..7690710
• Length (nt): 154
• Chromosome Location: II: 7690557-7690710
• Organism: Caenorhabditis elegans

214 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Genes with expression altered >= 3-fold in dpy-10(e128) mutants.	Data across the wild type series was analyzed using the Significance analysis of Microarrays (SAM) algorithm (to calculate the False Discovery Rate (FDR)).	WBPaper00035873:dpy-10_regulated
	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
	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
	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
	Genes that were downregulated in lin-15B(n744).	For each gene in each microarray hybridization experiment, the ratio of RNA levels from the two samples was transformed into a log2 value and the mean log2 ratio was calculated. The log2 ratios were normalized by print-tip Loess normalization (Dudoit and Yang, 2002). All genes with a false discovery rate of <= 5% (q <= 0.05) (Storey and Tibshirani, 2003) and a mean fold-change ratio of >= 1.5 were selected for further analysis.	WBPaper00038168:lin-15B(n744)_downregulated
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 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 that showed significantly decreased expression at 11-days-post L4 adult N2 hermaphrodites comparing to 1-day-post L4 adult N2 hermaphrodites.	DESeq2, fold change > 2, FDR < 0.05	WBPaper00065835:Day11_vs_Day1_downregulated
	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 intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:intestine_expressed
	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
	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)
	Transcripts that showed significantly increased expression in rrf-3(pk1426) comparing to in N2 at embryo stage.	DESeq2v 1.18.1, fold change > 1.5, adjusted p-value < 0.01.	WBPaper00056169:rrf-3(pk1426)_upregulated_embryo
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
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 6h), according to RNAseq.	Cuffdiff, ajusted p-value < 0.01.	WBPaper00046497:B.thuringiensis_0.1mix_downregulated_6h
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
Bacteria infection: Bacillus thuringiensis	mRNAs that showed significantly decreased expression after pathogenic bacteria Bacillus thuringiensis infections comparing to non pathogenic BT (BT247(1 to 2 mix) vs BT407 6h), according to RNAseq.	Cuffdiff, ajusted p-value < 0.01.	WBPaper00046497:B.thuringiensis_0.5mix_downregulated_6h
	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
Bacteria infection: Bacillus thuringiensis	mRNAs that showed significantly decreased expression after pathogenic bacteria Bacillus thuringiensis infections comparing to non pathogenic BT (BT247(1 to 2 mix) vs BT407 12h), according to RNAseq.	Cuffdiff, ajusted p-value < 0.01.	WBPaper00046497:B.thuringiensis_0.5mix_downregulated_12h
	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
	Transcripts that showed significantly decreased expression in vit-2(ac3); zcIs4, comparing to parenting strain SJ4005 [zcIs4].	Differential gene expression analysis was then performed on normalized samples. Genes exhibiting at least twofold change and a false-discovery rate (FDR) of 1% or less were considered differentially expressed.	WBPaper00051305:vit-2(ac3)_downregulated
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 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

9 Expression Patterns

• Primary Identifier: Expr1031742
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr8046
• Remark: Picture: Fig. 1 (panels A, B, G, and H).
• Subcellular Localization: NHX-2 is expressed strongly and uniformly throughout the apical membrane of intestinal cells.

• Primary Identifier: Expr113
• Remark: Other strains-- UL181, UL565 late embryo(author) = 3-fold embryo + fully-elongated embryo(curator).
• Pattern: Diffuse non-nuclear staining is seen in the intestine from the 3-fold embryonic stage onwards. Staining in young larvae is very strong and extends from the pharyngeo-intestinal valve to the anus. Expression is less frequently observed, and is less extensive, in L4 larvae and adults. Although non-nuclear localised, staining is centred on sub-cellular foci, possibly in intestinal granules. This gene has homology to Na(+)/H(+) exchange proteins.

• Primary Identifier: Expr2233
• Pattern: When GFP expression was driven by the promoter sequences upstream of the NHX-2-coding sequences, fluorescence was found nearly exclusively in the intestine of the worm. The entire intestine was labeled evenly in the nhx-2::GFP transgenic animals. nhx-2::GFP labeling was strong in both L1 and L2 larval animals, then diminished with age.

• Primary Identifier: Expr2241
• Pattern: In general, the expression patterns found for the translational fusion constructs were similar to those reported above for the transcriptional fusions. NHX-2::GFP showed patterns of expression that mimicked those observed previously. Confocal microscopy clearly demonstrated that NHX-2::GFP expression was restricted to the apical membrane of the intestine.
• Subcellular Localization: Apical membrane of the intestine

• Primary Identifier: Expr1020516
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

• Primary Identifier: Expr2014254
• 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: Expr2032494
• 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: Expr1143268
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

32 GO Annotation

18 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00003730
• Start: 7690711
• End: 7693957
• Strand: -1

32 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 3247

1 Sequence Ontology Term