WormMine: Gene WBGene00000503

• WormBase Gene ID: WBGene00000503
• Gene Name: cht-1
• Sequence Name: C04F6.3
• Brief Description: cht-1 encodes a chitinase orthologous to human chitinase-1 (OMIM:600031, mutations are associated with chitotriosidase deficiency); CHT-1 is predicted to function as an extracellular O-glycosyl hydrolase that hydrolyzes the glycosidic bond between two or more carbohydrates; in C. elegans, CHT-1 may play a role in embryogenesis, and may also be required for cuticle degradation during molting and degradation of chitin-containing pathogens as part of a host defense mechanism.
• Organism: Caenorhabditis elegans
• Automated Description: Enables chitinase activity. Involved in chitin catabolic process and response to fungus. Predicted to be located in extracellular region. Expressed in gonad. Human ortholog(s) of this gene implicated in several diseases, including artery disease (multiple); autoimmune disease (multiple); and lung disease (multiple). Is an ortholog of human CHIA (chitinase acidic).
• Biotype: SO:0001217
• Genetic Position: X :-10.3709 ±0.008165
• Length (nt): 2405

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00000503

Genomics

1 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:C04F6.3.1	C04F6.3.1	2041	X: 3397613-3400017

Other

1 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:C04F6.3	C04F6.3	1854	X: 3397799-3398142

4 RNAi Result

• WBRNAi00039652
• WBRNAi00010142
• WBRNAi00098179
• WBRNAi00000785

43 Allele

• gk963725
• gk964260
• gk963370
• gk319723
• gk858259
• gk509913
• gk464999
• gk811139
• gk712891
• gk963371
• gk323542
• gk339459
• gk935247
• gk606698
• gk950941
• gk802051
• gk356630
• gk813684
• gk452572
• gk848558
• gk439727
• gk704964
• gk761288
• h9146
• gk524869
• gk867610
• gk767810
• gk822435
• gk864656
• gk898839

1 Chromosome

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

1 Chromosome Location

• Feature . Primary Identifier: WBGene00000503
• Start: 3397613
• End: 3400017
• 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

339 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	oocyte proteins identified by two or more unique peptides during proteomics study.	In the pooled data set, 1453 C. elegans proteins were identified with a probability >= 0.9 according to ProteinProphet, of which 1165 proteins were identified by more than one unique peptide.	WBPaper00038289:oocyte_protein
	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
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
	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
	Genes that were upregulated 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)_upregulated
	Transcripts that showed significantly increased 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_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 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 intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:intestine_expressed
	Maternal class (M): genes that are called present in at least one of the three PC6 replicates.	A modified Welch F statistic was used for ANOVA. For each gene, regressed error estimates were substituted for observed error estimates. The substitution is justified by the lack of consistency among the most and least variable genes at each time point. Regressed error estimates were abundance-dependent pooled error estimates that represented a median error estimate from a window of genes of similar abundance to the gene of interest. A randomization test was used to compute the probability Pg of the observed F statistic for gene g under the null hypothesis that developmental time had no effect on expression. P-values were not corrected for multiple testing.	[cgc5767]:expression_class_M
	Transcripts expressed in seam cells, according to PAT-Seq analysis using Pgrd-10-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:seam_expressed
Bacteria diet: Escherichia coli HB101. Fed for 30 generations.	Transcripts that showed significantly decreased expression after fed by bacteria E. coli HB101 for 30 generations comparing to animals fed by E. coli OP50.	DESeq2 fold change > 2, p-value < 0.01.	WBPaper00061007:HB101_downregulated
	Transcripts that showed significantly decreased expression in lipl-4 overexpression transgenic lines comparing to wild type control animals.	DESeq2 fold change > 2, FDR < 0.05.	WBPaper00064156:lipl-4(overexpress)_downregulated
Bacteria diet: Xanthomonas citri Orange. Fed for 30 generations.	Transcripts that showed significantly decreased expression after fed by bacteria Xanthomonas citri (Orange) for 30 generations comparing to animals fed by E. coli OP50.	DESeq2 fold change > 2, p-value < 0.01.	WBPaper00061007:X.citri_downregulated
	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 animals exposed to 400uM tamoxifen from L1 to L4 larva stage.	DEseq2, fold change > 2	WBPaper00064505:tamoxifen_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
	Transcripts that showed significantly increased expression after exposure to 75uM paraquat(PQ) from L1 to day 2 adult stage in skn-1(lax188) animals	fold change > 2	WBPaper00058711:paraquat_upregulated
25C vs. 20C	Transcripts that showed significantly increased expression in 1-day post L4 adult hermaphrodite N2 grown at 25C, comparing to in N2 animals grown at 20C.	CuffDiff, fold change > 2.	WBPaper00065096:25C_vs_20C_upregulated
	Transcripts that showed significantly increased expression in 10-days post L4 adult hermaphrodite N2 grown at 20C, comparing to in 1-day post L4 adult hermaphrodite N2 animals grown at 20C.	CuffDiff, fold change > 2.	WBPaper00065096:Day10_vs_Day1_upregulated
	Transcripts that showed significantly increased expression in wdr-5(ok1417);skn-1(lax188) comparing to in skn-1(lax188) at day 2 adult stage.	fold change > 2	WBPaper00058711:wdr-5(ok1417)_upregulated
	Transcripts that showed significantly decreased expression in 10-days post L4 adult hermaphrodite npr-8(ok1439) animals grown at 20C, comparing to in N2 animals.	CuffDiff, fold change > 2.	WBPaper00065096:npr-8(ok1439)_downregulated_Day10_20C
Bacteria infection: Pseudomonas aeruginosa PA14. 24 hours of exposure at 25C.	Transcripts that showed significantly increased expression in N2 animals with 24 hours of exposure to P. aeruginosa PA14 for 24 hrs at 25C, comparing to N2 animals without exposure to PA14.	DESeq2, fold change > 2, FDR < 0.05.	WBPaper00058948:PA14_upregulated
Bacteria: B.subtilis	Transcripts that showed significantly decreased expression when animals were fed by probiotic bacteria strain B.subtilis PXN21 comparing to animals fed with OP50 from L1 till day 1 adult.	edgeR 3.16.5, FDR < 0.05, fold change > 2.	WBPaper00059117:B.subtilis_downregulated
	Transcripts that showed significantly decreased expression in tetraploid N2 comparing to diploid N2 animals at L4 larva stage.	DESeq2 R package (1.20.0), fold change > 2, and FDR < 0.05.	WBPaper00066110:tetraploid_vs_diploid_downregulated

7 Expression Patterns

• Primary Identifier: Expr1030298
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr4006
• Remark: Curated by authors based on online in-situ hybridization database (Y. Kohara, personal communication; http://nematode.lab.nig.ac.jp).
• Pattern: Broadly expressed in gonad.

• Primary Identifier: Expr2010002
• 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: Expr2028243
• 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: Expr1834
• Pattern: It was detected in each stage of C. elegans examined but appeared to have enhanced expression in dauer larvae and eggs. The intensity of expression in eggs within the uterus was weak and increased significantly after they had been laid.

• Primary Identifier: Expr1143745
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr1026158
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

16 GO Annotation

24 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00000503
• Start: 3397613
• End: 3400017
• Strand: -1

16 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 2405

1 Sequence Ontology Term