WormMine

WS295

Intermine data mining platform for C. elegans and related nematodes

Gene :

WormBase Gene ID  ? WBGene00002056 Gene Name  ifc-2
Sequence Name  ? M6.1 Brief Description  ifc-2 encodes three isoforms of an intermediate filament protein dispensable for viability but required for normal movement, growth rate, body size, body shape, and cuticle strength; IFC-2 is present in the cytoplasm of intestinal cells, and at the desmosomes of intestinal and pharyngeal cells.
Organism  Caenorhabditis elegans Automated Description  Predicted to be a structural constituent of cytoskeleton. Involved in post-embryonic digestive tract morphogenesis. Located in cytoplasm and desmosome. Expressed in several structures, including excretory canal; pharyngeal-intestinal valve; pharynx; rectal valve cell; and uterus. Human ortholog(s) of this gene implicated in several diseases, including Dowling-Degos disease; ichthyosis (multiple); and palmoplantar keratosis (multiple). Is an ortholog of several human genes including KRT1 (keratin 1); KRT2 (keratin 2); and KRT3 (keratin 3).
Biotype  SO:0001217 Genetic Position  X :-19.5186 ±0.005743
Length (nt)  ? 12749
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1 Organism

Name Taxon Id
Caenorhabditis elegans 6239

1 Synonyms

Value
WBGene00002056

Genomics

7 Transcripts

WormMine ID Sequence Name Length (nt) Chromosome Location
Transcript:M6.1b.1 M6.1b.1 3859   X: 642156-650107
Transcript:M6.1d.1 M6.1d.1 1979   X: 642156-645724
Transcript:M6.1e.1 M6.1e.1 4020   X: 642214-654821
Transcript:M6.1f.1 M6.1f.1 2119   X: 643108-645708
Transcript:M6.1a.2 M6.1a.2 4016   X: 643108-650108
Transcript:M6.1a.1 M6.1a.1 4317   X: 643108-654904
Transcript:M6.1c.1 M6.1c.1 2097   X: 646066-650092
 

Other

6 CDSs

WormMine ID Sequence Name Length (nt) Chromosome Location
CDS:M6.1e M6.1e 4020   X: 642214-642243
CDS:M6.1a M6.1a 3426   X: 643682-644053
CDS:M6.1c M6.1c 2097   X: 646066-646308
CDS:M6.1b M6.1b 3786   X: 642214-642243
CDS:M6.1d M6.1d 1869   X: 642214-642243
CDS:M6.1f M6.1f 1509   X: 643682-644053

27 RNAi Result

WormBase ID
WBRNAi00077553
WBRNAi00077552
WBRNAi00007221
WBRNAi00077555
WBRNAi00077554
WBRNAi00115210
WBRNAi00002364
WBRNAi00051032
WBRNAi00051033
WBRNAi00009020
WBRNAi00026002
WBRNAi00066805
WBRNAi00017257
WBRNAi00115211
WBRNAi00030249
WBRNAi00098348
WBRNAi00062651
WBRNAi00062652
WBRNAi00113739
WBRNAi00113735
WBRNAi00065746
WBRNAi00077561
WBRNAi00077560
WBRNAi00112379
WBRNAi00077559
WBRNAi00077558
WBRNAi00090677

153 Allele

Public Name
gk963652
gk963725
rh90
rh105
gk226
gk898071
WBVar01690010
WBVar01600338
WBVar01600339
WBVar01600341
WBVar01600340
WBVar00074375
WBVar00074374
WBVar00074377
WBVar00074376
WBVar01979042
WBVar01823969
WBVar01823970
WBVar01823972
WBVar01823971
gk902802
gk898070
gk361206
gk564273
gk431133
gk486853
gk759454
gk919958
gk495610
gk619802

1 Chromosome

WormBase ID Organism Length (nt)
X Caenorhabditis elegans 17718942  

1 Chromosome Location


Feature . Primary Identifier
Start End Strand
WBGene00002056 642156 654904 -1

4 Data Sets

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

1 Downstream Intergenic Region

WormBase ID Name Sequence Name Length (nt) Chromosome Location Organism
intergenic_region_chrX_641541..642155   615 X: 641541-642155 Caenorhabditis elegans

292 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 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
  Genes that showed significantly increased expression in wrn-1(gk99) comparing to in N2, according to RNAseq. DESeq was used to calculate the fold changes, log fold changes, and significance of the changes for each comparison. WBPaper00045934:wrn-1(gk99)_upregulated
  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 expressed in body muscle, according to PAT-Seq analysis using Pmyo-3-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:body-muscle_expressed
  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 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 up regulated in alg-1(gk214) comparing to in N2. Differential expression was assessed using an empirical Bayes statistics using the eBayes function. WBPaper00040823:alg-1(gk214)_upregulated
  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 old adults stage (214 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_aging
  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 expressed in seam cells, according to PAT-Seq analysis using Pgrd-10-GFP-3XFLAG mRNA tagging. Cufflinks FPKM value >=1. WBPaper00050990:seam_expressed
  Genes with expression level regulated by genotype (N2 vs CB4856) at Late reproduction stage (96 hours at 24 centigrade). Authors permuted transcript values and used a genome-wide threshold of log10 P-value = 2, which resembles a false discovery rate (FDR) of 0.0118. WBPaper00040858:eQTL_regulated_reproductive
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
  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
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
  Transcripts that showed significantly decreased expression in hsp-6(mg585) comparing to in N2 at L4 larva stage. EdgeR, fold change > 2, FDR < 0.001. WBPaper00056290:hsp-6(mg585)_downregulated
  Transcripts that showed significantly increased expression in mrg-1(qa6200) comparing to in control animals in primordial germ cells (PGCs) at L1 larva stage. DESeq2(v1.32.0), FDR < 0.05. WBPaper00064315:mrg-1(qa6200)_upregulated_PGCs

17 Expression Patterns

Remark Reporter Gene Primary Identifier Pattern Subcellular Localization
    Expr1031209 Tiling arrays expression graphs  
    Expr15269 The immunofluorescence whole mount microscopy on embryos, larvae and adults, using the ECP-1 antibody, revealed a strong staining of the excretory cells, including the canals and the cell bodies, the pharynx, the pharyngeal-intestinal valve as well as of the intestinal-rectal valve. These results confirmed the specificity of our ECP-1 antibody and reveal that the excretory cell specific expression of ECP-1 was different from the intestinal expression of the IFC-2 protein, while the pharynx and the two intestinal valves contain both these ECP-1 and IFC-2 proteins.  
    Expr15272 The promoter/GFP-reporter 1 was expressed in the pharynx, the pharyngeal-intestinal valve, the intestinal-rectal valve and also weakly in the uterus.  
    Expr2260 Double staining with C2 and desmosomal MH27 antibodies shows that C2 is located in the cytoplasm of intestinal cells and at desmosomes in intestine and pharynx of the larva, late embryo and adults. MH27 antibody additionally stained the hypodermal and all other epithelial desmosomes. cytoplasm
    Expr14340 Labeled EXC-2 is located at the lumen of the excretory canal, in the corpus, posterior bulb, and pharyngeal-intestinal valve of the pharynx, as well as in the uterine seam and intestinal-rectal valve. Labeled EXC-2 is located apical to canal cytoplasm, as determined via cross-sectional fluorescence intensity measurements. This result was confirmed by evaluating the subcellular location of EXC-2 relative to a known apical membrane protein, ERM-1 (Gbel et al. 2004). The results demonstrate that EXC-2 and ERM-1 show overlapping expression at the canal apical (luminal) membrane.
    Expr15267 IFC-2a/e::YFP is localized in the intestine, the excretory canal, corpus and posterior bulb of the pharynx, pharyngeal-intestinal valve and interfacial uterine cells.  
    Expr15268 No intestinal expression can be observed for IFC-2a/b/c, which instead presents a very prominent localization in the intestinal-rectal valve. Expression is also observed in the excretory canal, corpus and posterior bulb of the pharynx, pharyngeal-intestinal valve and interfacial uterine cells.  
Picture: Fig. 1.   Expr8185   Anti-IFB-2 fluorescence was detectable diffusely in the cytoplasm of intestinal cells accumulating over time in the sub-apical domain next to the newly forming lumen (e.g., plum stage). Anti-IFC-2 antibodies reacted only very weakly with the intestinal cells at plum stage although co-distribution with anti-IFB-2 was detectable in some sub-apical areas. The major IFC-2 immunofluorescence, however, was seen in hypodermal cells presenting a multipunctate staining of cell borders indicating a junctional localization. In subsequent stages, anti-IFB-2 reactivity further concentrated in the periluminal compartment, i.e., in the electron-dense endotube ultrastructure. Strongest immunofluorescence was noted in junctional regions due to the localization of IFB-2 along the entire junctional complex. In addition, multiple cytoplasmic puncta were seen that had not been described previously. These fluorescent structures began to accumulate in L3-larvae and were most abundant in old adults with a predilection for the posterior intestine. The anti-IFC-2-staining gradually increased in the intestine becoming quite prominent in L3-larvae in which it presented a very similar distribution to anti-IFB-2 fluorescence although diffuse cytoplasmic and junctional staining were more pronounced. In adult intestines anti-IFC-2 fluorescence was essentially identical to that of anti-IFB-2.
    Expr15273 The resulting promoter/GFP-reporter 2 expression was monitored in the intestine in agreement with the intestinal staining obtained with the IFC-2-specific antibody, which however also revealed, in addition, the staining of the pharynx.  
    Expr14279 Animals grown on control bacteria (OP50, control JM103) reach adulthood and display smooth periluminal localization of IFC-2a::YFP in the intestine indistinguishable from IFB-2a::CFP.  
    Expr2012682 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).  
    Expr1154745 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015  
    Expr2030918 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).  
    Expr14343   Labeled EXC-2 is located apical to canal cytoplasm, as determined via cross-sectional fluorescence intensity measurements. This result was confirmed by evaluating the subcellular location of EXC-2 relative to a known apical membrane protein, ERM-1 (Gbel et al. 2004). The results demonstrate that EXC-2 and ERM-1 show overlapping expression at the canal apical (luminal) membrane.
Original chronogram file: chronogram.646.xml [M6.1:gfp] transcriptional fusion. Chronogram1728    
    Expr1010980 Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012  
    Expr15159   To optimize comparative imaging of all canal cIFs and their isoforms during canal lumenogenesis, ifa-4, ifb-1b, ifc-2a, and ifc-2b cDNAs were cloned behind the canal-specific sulp-5 promoter and fused to different fluorophores. All localized to expanding larval and fully expanded adult lumenal membranes adjacent to but distinct from lumenal ERM-1. Thus, all C. elegans canal cIFs and their isoforms are located at the lumen.

16 GO Annotation

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

13 Homologues

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

1 Locations


Feature . Primary Identifier
Start End Strand
WBGene00002056 642156 654904 -1

16 Ontology Annotations

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

0 Regulates Expr Cluster

1 Sequence

Length
12749

1 Sequence Ontology Term

Identifier Name Description
gene  

3 Strains

WormBase ID
WBStrain00028840
WBStrain00047374
WBStrain00002850

1 Upstream Intergenic Region

WormBase ID Name Sequence Name Length (nt) Chromosome Location Organism
intergenic_region_chrX_654905..656183   1279 X: 654905-656183 Caenorhabditis elegans