WormMine: Gene WBGene00004886

• WormBase Gene ID: WBGene00004886
• Gene Name: smi-1
• Sequence Name: Y39A3CR.1
• Brief Description: smi-1 encodes the C. elegans ortholog of human Gemin2, a novel protein that interacts with the product of the survival motor neuron (SMN) gene, mutations in which are associated with spinal muscular atrophy; in C. elegans, smi-1 is an essential gene required for embryonic development past the mid-proliferation stage; in vitro, SMI-1 physically interacts with C. elegans SMN-1, indicating that the interaction between these two proteins is conserved; SMI-1 is expressed throughout development in multiple tissue types including the gut, neurons, and body wall muscles; SMI-1 localizes primarily to nuclei, with some protein also detected in the cytoplasm and in some neuronal processes.
• Organism: Caenorhabditis elegans
• Automated Description: Involved in embryo development. Located in cytoplasm. Expressed in body wall musculature; intestine; and ventral cord neurons. Used to study spinal muscular atrophy. Is an ortholog of human GEMIN2 (gem nuclear organelle associated protein 2).
• Biotype: SO:0001217
• Genetic Position: III :-15.8236 ±0.017184
• Length (nt): 2502

1 Organism

• Name: Caenorhabditis elegans
• Taxon Id: 6239

1 Synonyms

• Value: WBGene00004886

Genomics

4 Transcripts

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
Transcript:Y39A3CR.1b.1	Y39A3CR.1b.1	868	III: 1878365-1880866
Transcript:Y39A3CR.1a.1	Y39A3CR.1a.1	892	III: 1878365-1880866
Transcript:Y39A3CR.1c.1	Y39A3CR.1c.1	432	III: 1879319-1880747
Transcript:Y39A3CR.1d.1	Y39A3CR.1d.1	456	III: 1879319-1880747

Other

4 CDSs

WormMine ID	Sequence Name	Length (nt)	Chromosome Location
CDS:Y39A3CR.1b	Y39A3CR.1b	741	III: 1878373-1878606
CDS:Y39A3CR.1c	Y39A3CR.1c	432	III: 1879319-1879372
CDS:Y39A3CR.1a	Y39A3CR.1a	765	III: 1878373-1878606
CDS:Y39A3CR.1d	Y39A3CR.1d	456	III: 1879319-1879372

3 RNAi Result

• WBRNAi00103033
• WBRNAi00020360
• WBRNAi00103032

94 Allele

• gk962532
• gk964281
• otn12077
• WBVar01326258
• WBVar01326260
• WBVar01694014
• WBVar01606874
• WBVar01540717
• WBVar01540715
• WBVar01540716
• gk422624
• gk832133
• gk813962
• gk844797
• gk669152
• gk635221
• gk730089
• gk321150
• gk571899
• gk884827
• gk382029
• gk727249
• gk508960
• gk753017
• gk757462
• gk757463
• gk728983
• gk466625
• gk466626
• otn371

1 Chromosome

• WormBase ID: III
• Organism: Caenorhabditis elegans
• Length (nt): 13783801

1 Chromosome Location

• Feature . Primary Identifier: WBGene00004886
• Start: 1878365
• End: 1880866
• Strand: 1

4 Data Sets

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

1 Downstream Intergenic Region

• WormBase ID: intergenic_region_chrIII_1880867..1881155
• Length (nt): 289
• Chromosome Location: III: 1880867-1881155
• Organism: Caenorhabditis elegans

57 Expression Clusters

Regulated By Treatment	Description	Algorithm	Primary Identifier
	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
	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 higher expression in somatic gonad precursor cells (SGP) vs. head mesodermal cells (hmc).	DESeq2, fold change >= 2, FDR <= 0.01.	WBPaper00056826:SGP_biased
	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 intestine, according to PAT-Seq analysis using Pges-1-GFP-3XFLAG mRNA tagging.	Cufflinks FPKM value >=1.	WBPaper00050990:intestine_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
Bacteria diet: Sphingomonas aquatilis Yellow. Fed for 30 generations.	Transcripts that showed significantly decreased expression after fed by bacteria Sphingomonas aquatilis (Yellow) for 30 generations comparing to animals fed by E. coli OP50.	DESeq2 fold change > 2, p-value < 0.01.	WBPaper00061007:S.aquatilis_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 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
Temprature shift to 28C for 24 hours.	Transcripts that showed significantly decreased expression after animals were exposed to 28C temperature for 24 hours.	Differentially expressed genes wereidentified using DESeq (v.1.18.0) by normalizing readsbased on the negative binomial distribution method andcomparing each HS timepoint to the 0-h control.	WBPaper00061341:28C_24h_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:PVD-OLL-neurons_L3-L4-larva_expressed
	Transcripts detected in germline isolated from day-1 adult hermaphrodite animals.	All three experiments have CPM >= 1.	WBPaper00067147:germline_expressed
	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 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
	Transcripts that showed significantly decreased expression in nhl-2(ok818) comparing to in N2 at 25C.	EdgeR, FDR < 0.05, fold change < 0.5.	WBPaper00055971:nhl-2(ok818)_25C_upregulated
Starvation 48 hours at L1 arrest	Transcripts that showed significantly increased expression in starved N2 animals (48 hours at L1 arrest)	Fold change > 2.	WBPaper00064005:starvation_upregulated_N2_mRNA
Bacteria infection: Enterococcus faecalis OG1RF. Exposure for 16 hours.	Transcripts that showed significantly decreased expression in hpx-2(dg047) after animals were exposed to E. faecalis OG1RF for 16 hours comparing to exposure to E. Coli OP50.	Cuffcompare and Cuffdiff	WBPaper00056090:E.faecalis_downregulated_hpx-2(dg047)
	Transcripts of coding genes that showed significantly increased 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_enriched_coding-RNA
	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_downregulated
	Transcripts that showed differential expression between 24 and 26 hours post hatching L2d and dauer committed larvae of daf-9(dh, triggered by the dafachronic acid (DA) growth hormone6). Cluster 2 genes' expression gradually increased into dauer.	Benjamini Hochberg corrected q-value < 0.01.	WBPaper00053388:dauer_regulated_Cluster2
	Transcripts enriched in germline by comparing dissected germline tissue with dissected intestine tissue, both injected with empty RNAi vector.	Genes were determined germline-enriched if the lowest expression value (log2(FPKM+1)) observed in the germline empty vector samples was at least 2-fold higher than the highest expression value observed in the intestine empty vector samples.	WBPaper00051039:germline_enriched
Bacteria infection: Xenorhabdus nematophila	Caenorhabditis elegans Genes with expression levels changed significantly after treatment of Xenorhabdus nematophila.	Differential expression were calculated by empirical eBayes method using eBayes function. P_value <= 0.01 and log2 fold change > 1 were used to call differentially expressed genes in all datasets.	WBPaper00041606:CE_X.nematophila_regulated
	Genes identified as down-regulated at a 5% false discovery rate through RNAseq experiments with three tatn-1(qd182) and three N2 RNA samples.	ANOVA with FDR <= 0.05.	WBPaper00044656:tatn-1(qd182)_downregulated
	Genes expressed in embryonic motor neurons (identified by unc-4::GFP expressing cells).	Genes called Present by MAS 5.0 in 2 out of 3 unc-4::GFP hybridizations.	WBPaper00025141:unc-4::GFP_Expressed_Genes
Bacteria diet: complex environmental microbiotas	Transcripts that showed significantly decreased expression after L1 larva grew on soil microbiota at 25C for 3 days.	N.A.	WBPaper00056139:soil-microbiota_downregulated
	Transcripts that showed significantly decreased expression in animals with germline-specific inx-14(RNAi) comparing to in aniamls fed with control vector, both exposed to PA14 infection.	DESeq2. Differentially-expressed genes (DEG) were identified based on two criteria: FDR (False discovery rateusing Benjamini-Hochberg adjusted p-values) < 0.01 and absolute value of log2(Fold Change) > 1.	WBPaper00066146:germline-inx-14(RNAi)_downregulated_PA14

6 Expression Patterns

• Primary Identifier: Expr4282
• Pattern: Transgenic animals expressing SMI-1::GFP demonstrated strong expression throughout development, up to and including adulthood. SMI-1 was expressed in the gut at all stages through development. In addition, fluorescence was also detected in a subset of nerve cells in the head, in ventral nerve cord cell bodies and also in body-wall muscle cells. A high level of fluorescence was observed in vulval abnormalities, moulting defects and sterility.
• Subcellular Localization: Expressed in ventral nerve cord cell bodies

• Primary Identifier: Expr2034151
• 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: Expr1032425
• Pattern: Tiling arrays expression graphs

• Primary Identifier: Expr2015918
• 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: Expr1159661
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/hashimshony2015

• Primary Identifier: Expr1027897
• Pattern: Developmental gene expression time-course. Raw data can be downloaded from ftp://caltech.wormbase.org/pub/wormbase/datasets-published/levin2012

17 GO Annotation

5 Homologues

1 Locations

• Feature . Primary Identifier: WBGene00004886
• Start: 1878365
• End: 1880866
• Strand: 1

17 Ontology Annotations

0 Regulates Expr Cluster

1 Sequence

• Length: 2502

1 Sequence Ontology Term

• Name: gene

0 Strains

1 Upstream Intergenic Region

• WormBase ID: intergenic_region_chrIII_1878316..1878364
• Length (nt): 49
• Chromosome Location: III: 1878316-1878364
• Organism: Caenorhabditis elegans