WormMine: Gene WBGene00004808

• WormBase Gene ID: WBGene00004808
• Gene Name: skr-2
• Sequence Name: F46A9.4
• Brief Description: skr-2 encodes a homolog of Skp1 in S. cerevisiae, a core component of the SCF (Skp1p, Cullin, F-box) ubiquitin-ligase complex that facilitates ubiquitin-mediated protein degradation; SKR-2 is required for the restraint of cell proliferation, progression through the pachytene stage of meiosis, and the formation of bivalent chromosomes at diakinesis; SKR-2::GFP is detected exclusively in the intestine.
• Organism: Caenorhabditis elegans
• Automated Description: Predicted to enable cullin family protein binding activity. Involved in several processes, including establishment of mitotic spindle orientation; regulation of cell cycle; and regulation of protein stability. Part of SCF ubiquitin ligase complex. Expressed in intestine. Is an ortholog of human SKP1 (S-phase kinase associated protein 1).
• Biotype: SO:0001217
• Genetic Position: I :3.76667 ±0.000462
• Length (nt): 984

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00004808

Genomics

1 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:F46A9.4.1	F46A9.4.1	758	I: 9469654-9470637

Other

1 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:F46A9.4	F46A9.4	525	I: 9469704-9469784

69 RNAi Result

• WBRNAi00094807
• WBRNAi00112063
• WBRNAi00112065
• WBRNAi00112064
• WBRNAi00112066
• WBRNAi00106579
• WBRNAi00106598
• WBRNAi00047473
• WBRNAi00007728
• WBRNAi00000057
• WBRNAi00025525
• WBRNAi00072508
• WBRNAi00073569
• WBRNAi00073568
• WBRNAi00073570
• WBRNAi00073573
• WBRNAi00073572
• WBRNAi00081317
• WBRNAi00086781
• WBRNAi00077950
• WBRNAi00116782
• WBRNAi00072509
• WBRNAi00072510
• WBRNAi00073567
• WBRNAi00073571
• WBRNAi00073574
• WBRNAi00069083
• WBRNAi00025526
• WBRNAi00032340
• WBRNAi00098119

18 Allele

• gk962858
• gk962706
• gk963902
• gk963849
• gk964316
• gk413242
• gk560413
• gk118832
• gk118833
• ok1696
• gk118834
• ok1938
• gk118835
• gk328987
• gk716779
• gk625726
• gk456562
• gk731319

1 Chromosome

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

1 Chromosome Location

• Feature . Primary Identifier: WBGene00004808
• Start: 9469654
• End: 9470637
• 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

147 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
Osmotic stress	Transcripts that showed significantly altered expression with 500 mM salt (NaCl) vs 100 mM salt when no food was present	DESeq(version 1.10.1), FDR < 0.05.	WBPaper00050726:OsmoticStress_regulated_NoFood
	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
	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 GABAergic neuron, according to PAT-Seq analysis using Punc-47-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:GABAergic-neuron_expressed
	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
	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 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
	Transcripts expressed in seam cells, according to PAT-Seq analysis using Pgrd-10-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:seam_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)
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
	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 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 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
	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 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
	Proteins that showed significantly decreased expression in 1-day-old sek-1(km4) adults comparing to in wild type animals, both with 6 hours of cisplatin treatment.	The differential expression analysis was performed in R. Differentially expressed proteins were identified by using a two-sided t-test on log-transformed data.	WBPaper00065373:sek-1(km4)_downregulated_cisplatin
	Transcripts that showed significantly decreased expression in rbr-2(tm3141) comparing to in N2 animals.	Mapped reads were analyzed for transcript assembly and differential expression using Cufflinks 2.1.1 with a filter of twofold difference and FDR correction (P < 0.05).	WBPaper00050080:rbr-2(tm3141)_downregulated
	Transcripts that showed significantly increased expression in wdr-23(mac32) embryos from parents fed with E. coliHB101, comparing to N2 embryos parents fed with E. coli HB101.	DESeq2, Fold Change > 2 or < 0.5.	WBPaper00059566:wdr-23(mac32)_upregulated
	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
	Transcriptions that showed significantly increased expression in skn-1(RNAi) comparing to empty vector injection into rrf-3(pk1426);daf-2(e1368) animals.	Genes with an absolute fold changeof at least 2 and standard p-values below 0.05 were considered as differentially expressed.	WBPaper00062193:skn-1(RNAi)_upregulated

6 Expression Patterns

• Primary Identifier: Expr2034083
• 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: Expr1151309
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr1032387
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr2438
• Pattern: Expression of SKR-2::GFP was restricted to the intestine of transgenic animals.

• Primary Identifier: Expr2015850
• 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: Expr1027946
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

19 GO Annotation

14 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00004808
• Start: 9469654
• End: 9470637
• Strand: 1

19 Ontology Annotations

1 Regulates Expr Cluster

Regulated By Treatment	Description	Algorithm	Primary Identifier
	Transcripts that showed significantly decreased expression in skr-1 and skr-2(RNAi) animals comparing to in control animals.	Using the Cufflink package and CuffDiff application from Galaxy, FPKM (Fragments Per Kilobase of transcript per Million mapped reads) were calculated and tested for differential expression with a FDR score of 5%.	WBPaper00050332:skr-1(RNAi)-skr-2(RNAi)_downregulated

1 Sequence

• Length: 984

1 Sequence Ontology Term