WormMine: Gene WBGene00007278

• WormBase Gene ID: WBGene00007278
• Gene Name: lab-1
• Sequence Name: C03D6.6
• Brief Description: lab-1 encodes a protein containing a motif associated with binding, localization, and function of protein phosphatase 1 (PP1/Glc7); LAB-1 activity is required for establishment and maintenance of sister chromatid cohesion during meiosis; LAB-1 physically interacts with the protein phosphatases GSP-1 and GSP-2 and positively regulates the localization of GSP-2 to early meiotic nuclei; in addition, LAB-1 negatively regulates AIR-2 localization to early meiotic nuclei; LAB-1 localizes to condensed chromosomes in the germ line.
• Organism: Caenorhabditis elegans
• Automated Description: Enables protein phosphatase 1 binding activity. Involved in meiotic sister chromatid cohesion and regulation of protein localization to nucleus. Located in condensed chromosome and nucleus.
• Biotype: SO:0001217
• Genetic Position: I :3.83496 ±0.001373
• Length (nt): 1012

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00007278

Genomics

1 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:C03D6.6.1	C03D6.6.1	869	I: 9657012-9658023

Other

1 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:C03D6.6	C03D6.6	486	I: 9657176-9657370

8 RNAi Result

• WBRNAi00039520
• WBRNAi00002896
• WBRNAi00018240
• WBRNAi00028392
• WBRNAi00061574
• WBRNAi00112287
• WBRNAi00112273
• WBRNAi00114695

18 Allele

• gk962858
• gk962706
• gk963902
• gk963849
• gk964316
• tm874
• WBVar01762353
• tm1791
• tm3002
• rj10
• WBVar00155989
• gk119219
• WBVar00155990
• WBVar00155987
• WBVar00155988
• gk748653
• gk738357
• gk723238

1 Chromosome

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

1 Chromosome Location

• Feature . Primary Identifier: WBGene00007278
• Start: 9657012
• End: 9658023
• Strand: -1

3 Data Sets

• WormBaseAcedbConverter
• GO Annotation data set
• C. elegans genomic annotations (GFF3 Gene)

0 Downstream Intergenic Region

136 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
	Transcripts expressed in hypodermis, according to PAT-Seq analysis using Pdpy-7-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:hypodermis_expressed
	Transcripts expressed in intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:intestine_expressed
	Transcripts that showed significantly increased expression in day 1 adult hermaphrodite comparing to in L4 larva fem-3(q20) animals.	Fold change > 2, FDR < 0.05	WBPaper00064088:Day-1-adult_vs_L4_upregulated_fem-3(q20)
	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 day 3 adult hermaphrodite comparing to in L4 larva fem-3(q20) animals.	Fold change > 2, FDR < 0.05	WBPaper00064088:Day-3-adult_vs_L4_upregulated_fem-3(q20)
	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
	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
	Strictly maternal class (SM): genes that are the subset of maternal genes that are not also classified as embryonic.	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_SM
	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
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 decreased expression in dissected female germline comparing to in dissected male germline.	Log2 Fold change > 2 or <-1, p-value < 0.05.	WBPaper00053599:female_vs_male_downregulated
	Genes with increased RNA expression after 24 hours rotenone treatment	EdgeR provides statistical routines for determining differential expression in digital gene expression data using a model based on the negative binomial distribution. The resulting p-values were adjusted using the Benjamini and Hochbergs approach for controlling the false discovery rate (FDR). Transcripts with an adjusted p-value smaller 0.05 were assigned as differentially expressed.	WBPaper00044426:rotenone_24h_upregulated
	Transcripts that showed significantly decreased expression in hpl-2(tm1489) comparing to in N2 animals.	DESeq2, adjusted p-value < 0.05, log2 fold change > 2 or < -2.	WBPaper00054493:hpl-2(tm1489)_downregulated
	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:hypodermis_L3-L4-larva_expressed
Bacteria infection: Streptococcus gordonii	Transcripts that showed significantly decreased expression after L4 larva animals were exposed to wild type S. gordonii for 2-3 hours, comparing to animals exposed to S. gordonii delta-spxB.	Fold change > 2, FDR corrected p-value < 0.05.	WBPaper00055049:S.gordonii_downregulated
	Transcripts that showed significantly increased expression in ilc-17.1(syb5296) comparing to in N2 animals at L4 larva stage.	DESeq2, fold change > 2, FDR < 0.05.	WBPaper00066594:ilc-17.1(syb5296)_upregulated
	Transcripts that showed significantly decreased expression in FACS sorted neuron cells (labelled by pan-neuronal GFP) from edIs6[unc-119::GFP + rol-6(su1006)]; thoc-5(wy822) comparing to in edIs6.	DESeq2, log2 fold change > 2, adjusted p-value < 0.005.	WBPaper00055103:thoc-5(wy822)_downregulated
	Transcripts that showed significantly increased expression in hira-1(gk835598) comparing to in N2 animals at L4 larva stage.	Differential expression analysis was done with Rversion 2.15.3 using DESeq_1.10.1. Fold change > 2, p-value < 0.01.	WBPaper00059739:hira-1(gk835598)_upregulated_L4
	Transcripts that showed significantly decreased 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_downregulated
	Transcripts detected in germline isolated from day-1 adult hermaphrodite animals.	All three experiments have CPM >= 1.	WBPaper00067147:germline_expressed
Bacteria: B.thuringiensis	Transcripts in elt-2(RNAi) animals that were significantly differentially expressed at least for one time point and one pathogenic strain Bt247 and Bt679 compared to the non pathogenic strain Bt407.	Cuffdiff	WBPaper00060358:B.thuringiensis_pathogen_regulated_elt-2(RNAi)
Bacteria: B.thuringiensis	Transcripts in N2 animals that were significantly differentially expressed at least for one time point and one pathogenic strain Bt247 and Bt679 compared to the non pathogenic strain Bt407.	Cuffdiff	WBPaper00060358:B.thuringiensis_pathogen_regulated_N2
	Genes that were not enriched in either spermatogenic fem-3(q96gf) nor oogenic fog-2(q71) gonads, according to RNAseq analysis.	To identify differentially expressed transcripts, authors used R/Bioconductor package DESeq.	WBPaper00045521:Gender_Neutral
	Transcripts that showed altered expression from P0 to F2 generation animals after N2 parental generation were treated with antimycin, but not in damt-1(gk961032) P0 to F2 animals after the parenal generaton were treated with antimycin.	N.A.	WBPaper00055862:antimycin_damt-1(gk961032)_regulated
	Transcripts that showed significantly decreased expression in the neurons of bcat-1(RNAi) animals at 5-days post L4 adult hermaphrodite stage, comparing to animals injected with empty vector.	DESeq2. FDR < 0.05.	WBPaper00060459:bcat-1(RNAi)_downregulated

6 Expression Patterns

• Primary Identifier: Expr1033139
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr8521
• Remark: Picture: Fig. 1D, 2A, 2B, 2D, 2E. Supplemental Fig. 3A,B.
• Subcellular Localization: LAB-1 associates with chromosomes from entry into prophase I until the end of meiosis I. During pachytene, the LAB-1 signal intensifies and is observed as continuous tracks at the interface between homologous chromosomes, in a similar localization to that detected at this stage for the SC (the synaptonemal complex) component SYP-1. Strikingly, during late pachytene, LAB-1 and SYP-1 progressively acquire a reciprocal localization. Specifically, the LAB-1 signal is observed on chromosome regions where SYP-1 is lost, and in a reciprocal fashion, SYP-1 remains on regions where the LAB-1 signal is no longer apparent. Upon chromosome resolution, SYP-1 localization is restricted to the short arms of the bivalents at diakinesis, whereas LAB-1 is observed exclusively on the long arms. Moreover, while the SYP-1 signal is lost prior to the end of diakinesis, LAB-1 remains localized to chromosomes until homolog segregation at anaphase I. Closer examination of the long arm domain revealed a distinct ring-like structure formed by LAB-1 and REC-8 that presumably delineates the interface between sister chromatids. Furthermore, coimmunostaining of LAB-1 and SYP-1 revealed that SC disassembly in lab-1(tm1791) mutants, although completed by the end of diakinesis (~1 oocyte), is considerably delayed when compared with wild type. Thus, LAB-1 associates with the interchromatid domain harboring the cohesin complex on the bivalent and undergoes an unprecedented chromatin reorganization process in late prophase I nuclei that is essential for the correct kinetics of SC disassembly and the adoption of a long arm identity.

• Primary Identifier: Expr1022004
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

• Primary Identifier: Expr2012992
• 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: Expr1143622
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr2031224
• 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).

14 GO Annotation

0 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00007278
• Start: 9657012
• End: 9658023
• Strand: -1

14 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 1012

1 Sequence Ontology Term

• Name: gene

1 Strains

• WBStrain00005201

1 Upstream Intergenic Region

• WormBase ID: intergenic_region_chrI_9658024..9658273
• Length (nt): 250
• Chromosome Location: I: 9658024-9658273
• Organism: Caenorhabditis elegans