WormMine: Gene WBGene00002601

• WormBase Gene ID: WBGene00002601
• Gene Name: let-381
• Sequence Name: F26B1.7
• Brief Description: let-381 encodes a forkhead transcription factor and was identified in a screen for essential genes; let-381 is essential for development at different times as mutants exhibit embryonic and early larval lethality, with a few developing to sterile adults; inactivation of let-381 using RNA interference results in adults with mesodermal cell lineage defects and a reduced number of coelomocytes; reporter-gene assays indicate LET-381 is expressed when the embryo starts to elongate and continues to be expressed through all larval stages and into the adult.
• Organism: Caenorhabditis elegans
• Automated Description: Enables sequence-specific DNA binding activity. Involved in mesodermal cell fate specification; nematode larval development; and positive regulation of mesodermal cell fate specification. Located in nucleus. Expressed in M.dlp; M.drp; body wall muscle cell from M lineage; and coelomocyte. Human ortholog(s) of this gene implicated in persistent fetal circulation syndrome. Is an ortholog of human FOXF1 (forkhead box F1).
• Biotype: SO:0001217
• Genetic Position: I :1.01515 ±0.012812
• Length (nt): 3731

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00002601

Genomics

1 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:F26B1.7.1	F26B1.7.1	1261	I: 6320289-6324019

Other

1 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:F26B1.7	F26B1.7	1089	I: 6320425-6320689

15 RNAi Result

• WBRNAi00114157
• WBRNAi00114235
• WBRNAi00114037
• WBRNAi00114116
• WBRNAi00025243
• WBRNAi00025244
• WBRNAi00003480
• WBRNAi00113573
• WBRNAi00114272
• WBRNAi00114195
• WBRNAi00022900
• WBRNAi00045602
• WBRNAi00113999
• WBRNAi00114078
• WBRNAi00116839

40 Allele

• gk962858
• gk962706
• gk963902
• WBVar01431869
• tm288
• WBVar01283215
• h107
• gk112784
• gk112785
• gk112786
• gk112791
• gk112792
• gk112793
• gk112794
• gk112787
• gk112788
• gk112789
• gk112790
• WBVar01344905
• WBVar01344906
• WBVar01947980
• gk759579
• gk380152
• gk594878
• gk519305
• gk692200
• gk934558
• WBVar01993277
• gk680465
• gk481344

1 Chromosome

• WormBase ID: I
• Organism: Caenorhabditis elegans
• Length (nt): 15072434

1 Chromosome Location

• Feature . Primary Identifier: WBGene00002601
• Start: 6320289
• End: 6324019
• 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

112 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	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
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 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 50uM Rifampicin from day 1 to day 3 adult hermaphradite.	DESeq2(v1.14.1), fold change > 2, p-value < 0.05	WBPaper00055354:Rifampicin_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
	Genome-wide analysis of developmental and sex-regulated gene expression profile.	self-organizing map	cgc4489_group_18
	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
	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 changed expression in 6-day post-L4 adult hermaphrodite comparing to in 1-day post L4 adult hermaphrodite animals.	Sleuth	WBPaper00051558:aging_regulated
	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 in oocyte germline cells comparing to in mitosis germline cells.	Log2 Fold change > 2 or <-1, p-value < 0.05.	WBPaper00053599:oocyte_vs_mitosis_upregulated
	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
	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:coelomocytes_L2-larva_expressed
	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 increased expression in mep-1(ne4629[MEP-1-GFP-Degron]) 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:mep-1(ne4629)_upregulated
	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 srbc-48(ac23);kyIs262;fer-1(b232ts) comparing to in kyIs262;fer-1(b232ts), 24h after infection with P.aeruginosa.	DESeq2, FDR <0.05, fold change > 2.	WBPaper00059664:srbc-48(ac23)_upregulated
	Transcripts that showed significantly decreased expression in set-2(tm1630) animals at embryo stage, comparing to in N2 animals.	DESeq2 (v2.1.8.3) was used to determine DE genes and to generate principal component and scatter plots. DE genes with FDR < 0.05 were analysed using g:Profiler with Bonferroni correction.	WBPaper00060014:set-2(tm1630)_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 increased expression in animals lacking P granules by RNAi experiments targeting pgl-1, pgl-3, glh-1 and glh-4, and unc-119-GFP(+), comparing to in control animals, at 2-day post L4 adult hermaphrodite stage.	DESeq2, Benjamini-Hochberg multiple hypothesis corrected p-value < 0.05 and fold change > 2.	WBPaper00050859:upregulated_P-granule(-)GFP(+)_vs_control_day2-adult
	Transcripts that showed significantly increased expression in animals lacking P granules by RNAi experiments targeting pgl-1, pgl-3, glh-1 and glh-4, and unc-119-GFP(-), comparing to in control animals, at 2-day post L4 adult hermaphrodite stage.	DESeq2, Benjamini-Hochberg multiple hypothesis corrected p-value < 0.05 and fold change > 2.	WBPaper00050859:upregulated_P-granule(-)GFP(-)_vs_control_day2-adult
	Genes with significantly increased expression in eat-2(ad465) treated with 2% DMSO for 72 hours, comparing to in N2 treated with 2% DMSO for 72 hours.	Analysis of gene expression data was carried out with the Affymetrix Transcriptome Analysis Console. Data preprocessing (using RMA normalization) and QC metrics were performed using Affymetrix Expression Console TM and manually inspected afterwards. Expression analysis was carried out for each two pairwise conditions. FDR statistical correction for multiple testing resulted in a slightly lower number of DEGs in most cases. P-value < 0.05 and fold change > 2.0 were used to determine differentially expressed genes.	WBPaper00048989:eat-2(ad465)_upregulated_in-DMSO
	Genes found to be regulated by low-copy overexpression of sir-2.1 with p < 0.014.	N.A.	WBPaper00026929:sir-2.1_overexpression_regulated
	Genes expressed in N2.	Expressed transcripts were identified on the basis of a Present call in 3 out of 4 N2 experiments as determined by Affymetrix MAS 5.0.	WBPaper00025141:N2_Expressed_Genes
	Transcripts that showed significantly increased expression in animals fed with JM103 bacteria producing Cry5B, comparing to control animals fed with JM103.	ANOVA, p-value < 0.05.	WBPaper00056167:Cry5B_upregulated
heat-shock hlh-1	Genes enriched in HLH-1 heat shock dataset.	A two-class unpaired analysis was performed to identify genes that are elevated 1.7-fold or greater when compared with the reference for each dataset, at a false discovery rate of 1.8% or less for M0 and 1.2% or less for the M24 datasets.	WBPaper00031003:hlh_1_enriched

8 Expression Patterns

• Primary Identifier: Expr1031357
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr2343
• Remark: Reporter gene fusion type not specified.
• Pattern: Expression begins as the embryo starts to elongate and continues through all larval stages and into the adult. Expression was in the anterior and became strikingly intense in larvae and adults, but the precise identity of the expressing cells has not been determined because the signal is poorly localised. The expressing cells are located outside of the pharynx, around the terminal bulb, and could include nerve cells or cells of the excretory system.

• Primary Identifier: Expr2344
• Remark: Reporter gene fusion type not specified.
• Pattern: Expression begins as the embryo starts to elongate and continues through all larval stages and into the adult. Expression was in the anterior and became strikingly intense in larvae and adults, but the precise identity of the expressing cells has not been determined because the signal is poorly localised. The expressing cells are located outside of the pharynx, around the terminal bulb, and could include nerve cells or cells of the excretory system.

• Primary Identifier: Expr9018
• Remark: Picture: Fig 5.
• Pattern: Both let-381::gfp and anti-LET-381 immunostaining showed similar let-381 expression patterns, which begin during embryogenesis and persist in a small number of cells throughout larval development. As expected of a transcription factor, LET-381 localizes to the nucleus. Double-labeling experiments using the let-381::gfp fusion or anti-LET-381 with anti-FOZI-1 staining (to label M lineage cells) showed that LET-381 is transiently expressed in the M lineage and is first detected in M.dlp and M.drp as they begin to divide. Expression continued in both daughters of these divisions [M.d(l/r)pa and M.d(l/r)pp] until the cells differentiated.

• Primary Identifier: Expr2013055
• 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: Expr1027729
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

• Primary Identifier: Expr2031287
• 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: Expr1149512
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

16 GO Annotation

31 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00002601
• Start: 6320289
• End: 6324019
• Strand: -1

16 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 3731

1 Sequence Ontology Term

• Name: gene

3 Strains

• WBStrain00023690
• WBStrain00035996
• WBStrain00052018

1 Upstream Intergenic Region

• WormBase ID: intergenic_region_chrI_6324020..6326620
• Length (nt): 2601
• Chromosome Location: I: 6324020-6326620
• Organism: Caenorhabditis elegans