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The formation of ESCRT III - composed of subcomplexes Snf7p-Vps20p and Did4p-Vps24p - is transient and appears to be dependent on ESCRT II (8, 2). Snf7p-Vps20p effects the membrane association of ESCRT III, with Snf7p being required for localization of the Bro1p vacuolar protein sorting factor to endosomes (9, 10). Did4p-Vps24p is required for endosomal localization of the Doa4p ubiquitin hydrolase and the Vps4p AAA-type ATPase. Vps4p is necessary for the dissociation of ESCRT III (2, 11).

snf7 mutants are defective for vacuolar protein sorting, growth on medium containing raffinose plus antimycin A, derepressing transcription of SUC2, and sporulation (1, 12, 13). Null mutants in any of the four genes encoding ESCRT III proteins exhibit growth defects at high temperatures. Individual snf7 and vps20 null mutants also display hypersensitivity to calcium, lithium, and manganese ions, while did4 and vps24 null mutants are hypersensitive to manganese (14).

The four members of the ESCRT III complex are part of a family of small coiled-coil proteins which also includes includes Did2p, Moh1p, Vps60p, Candida albicans Snf7p, and human CHMP1, CHMP1.5, CHMP2 (BC-2, which is a putative breast adenocarcinoma marker), CHMP2.5 (CGI-84), CHMP3 (NEDF), CHMP4a, CHMP4b, CHMP5 (CGI-34), and CHMP6 (15, 11, 16, 17, 2, 18, 19, 20).", "date_edited": "2006-03-01"}, "literature_overview": {"primary_count": 105, "additional_count": 91, "review_count": 48, "go_count": 8, "phenotype_count": 24, "disease_count": 0, "interaction_count": 103, "regulation_count": 3, "ptm_count": 10, "funComplement_count": 0, "htp_count": 86, "total_count": 371}, "disease_overview": {"manual_disease_terms": [], "htp_disease_terms": [], "computational_annotation_count": 0, "date_last_reviewed": null}, "ecnumbers": [], "URS_ID": null, "main_strain": "S288C", "genetic_position": 11.4, "regulation_overview": {"regulator_count": 4, "target_count": 0, "paragraph": {"text": "SNF7 promoter is bound by Ume6p and Yap6p in response to heat; SNF7 transcription is downregulated by Paf1p", "date_edited": "2024-12-04", "references": [{"id": 414327, "display_name": "Venters BJ, et al. (2011)", "citation": "Venters BJ, et al. (2011) A comprehensive genomic binding map of gene and chromatin regulatory proteins in Saccharomyces. Mol Cell 41(4):480-92", "pubmed_id": 21329885, "link": "/reference/S000145602", "year": 2011, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1016/j.molcel.2011.01.015"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3057419/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/21329885"}]}, {"id": 1964122, "display_name": "Rodrigues J and Lydall D (2018)", "citation": "Rodrigues J and Lydall D (2018) Cis and trans interactions between genes encoding PAF1 complex and ESCRT machinery components in yeast. Curr Genet 64(5):1105-1116", "pubmed_id": 29564528, "link": "/reference/S000216332", "year": 2018, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1007/s00294-018-0828-6"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6153643/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/29564528"}]}]}}, "reference_mapping": {"625258": 1, "557421": 2, "634830": 3, "544017": 4, "617905": 5, "2598577": 6, "536399": 7, "557436": 8, "552131": 9, "525321": 10, "592082": 11, "641986": 12, "600550": 13, "537237": 14, "618999": 15, "572957": 16, "589273": 17, "549314": 18, "548980": 19, "526559": 20, "531474": 21, "598090": 22, "631292": 23, "627574": 24}, "history": [{"category": "Name", "history_type": "LSP", "note": "Name: DID1", "date_created": "2010-02-16", "references": [{"id": 592082, "display_name": "Amerik AY, et al. (2000)", "citation": "Amerik AY, et al. (2000) The Doa4 deubiquitinating enzyme is functionally linked to the vacuolar protein-sorting and endocytic pathways. Mol Biol Cell 11(10):3365-80", "pubmed_id": 11029042, "link": "/reference/S000059113", "year": 2000, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1091/mbc.11.10.3365"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC14998/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/11029042"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: RNS4", "date_created": "2010-02-16", "references": [{"id": 531474, "display_name": "Unno K, et al. (2005)", "citation": "Unno K, et al. (2005) Identification and characterization of rns4/vps32 mutation in the RNase T1 expression-sensitive strain of Saccharomyces cerevisiae: Evidence for altered ambient response resulting in transportation of the secretory protein to vacuoles. FEMS Yeast Res 5(9):801-12", "pubmed_id": 15925308, "link": "/reference/S000081902", "year": 2005, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1016/j.femsyr.2005.03.003"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/15925308"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: SNF7", "date_created": "2000-05-19", "references": [{"id": 625258, "display_name": "Vallier LG and Carlson M (1991)", "citation": "Vallier LG and Carlson M (1991) New SNF genes, GAL11 and GRR1 affect SUC2 expression in Saccharomyces cerevisiae. Genetics 129(3):675-84", "pubmed_id": 1752413, "link": "/reference/S000047355", "year": 1991, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1093/genetics/129.3.675"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1204735/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/1752413"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: VPL5", "date_created": "2010-02-16", "references": [{"id": 598090, "display_name": "Raymond CK, et al. (1992)", "citation": "Raymond CK, et al. (1992) Morphological classification of the yeast vacuolar protein sorting mutants: evidence for a prevacuolar compartment in class E vps mutants. Mol Biol Cell 3(12):1389-402", "pubmed_id": 1493335, "link": "/reference/S000056533", "year": 1992, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1091/mbc.3.12.1389"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC275707/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/1493335"}]}]}, {"category": "Name", "history_type": "LSP", "note": "Name: VPS32", "date_created": "2010-02-16", "references": [{"id": 627574, "display_name": "Rothman JH, et al. (1989)", "citation": "Rothman JH, et al. (1989) Characterization of genes required for protein sorting and vacuolar function in the yeast Saccharomyces cerevisiae. EMBO J 8(7):2057-65", "pubmed_id": 2676511, "link": "/reference/S000046573", "year": 1989, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1002/j.1460-2075.1989.tb03614.x"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC401090/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/2676511"}]}, {"id": 631292, "display_name": "Robinson JS, et al. (1988)", "citation": "Robinson JS, et al. (1988) Protein sorting in Saccharomyces cerevisiae: isolation of mutants defective in the delivery and processing of multiple vacuolar hydrolases. Mol Cell Biol 8(11):4936-48", "pubmed_id": 3062374, "link": "/reference/S000045321", "year": 1988, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1128/mcb.8.11.4936-4948.1988"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC365587/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/3062374"}]}]}, {"category": "Nomenclature history", "history_type": "LSP", "note": "Nomenclature history: The VPL5 name was originally associated with VPS5/YOR069W. However, further complementation analysis indicated that the vpl5 mutant is actually allelic to SNF7/YLR025W, also known as VPS32.", "date_created": "2009-04-21", "references": [{"id": 598090, "display_name": "Raymond CK, et al. (1992)", "citation": "Raymond CK, et al. (1992) Morphological classification of the yeast vacuolar protein sorting mutants: evidence for a prevacuolar compartment in class E vps mutants. Mol Biol Cell 3(12):1389-402", "pubmed_id": 1493335, "link": "/reference/S000056533", "year": 1992, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1091/mbc.3.12.1389"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC275707/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/1493335"}]}, {"id": 627574, "display_name": "Rothman JH, et al. (1989)", "citation": "Rothman JH, et al. (1989) Characterization of genes required for protein sorting and vacuolar function in the yeast Saccharomyces cerevisiae. EMBO J 8(7):2057-65", "pubmed_id": 2676511, "link": "/reference/S000046573", "year": 1989, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1002/j.1460-2075.1989.tb03614.x"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC401090/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/2676511"}]}, {"id": 631292, "display_name": "Robinson JS, et al. (1988)", "citation": "Robinson JS, et al. (1988) Protein sorting in Saccharomyces cerevisiae: isolation of mutants defective in the delivery and processing of multiple vacuolar hydrolases. Mol Cell Biol 8(11):4936-48", "pubmed_id": 3062374, "link": "/reference/S000045321", "year": 1988, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1128/mcb.8.11.4936-4948.1988"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC365587/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/3062374"}]}]}, {"category": "Mapping", "history_type": "SEQUENCE", "note": "Mapping: Edition 12: snf7 is different from spt8 based on sequence analysis", "date_created": "1994-08-01", "references": [{"id": 542521, "display_name": "Mortimer RK, et al. (1994)", "citation": "Mortimer RK, et al. (1994) \"Genetic and Physical maps of Saccharomyces cerevisiae (Edition 12)\". Pp. 374-377 in 1994 Yeast Genetics and Molecular Biology Meeting Program and Abstracts. Bethesda, MD: The Genetics Society of America", "pubmed_id": null, "link": "/reference/S000076281", "year": 1994, "urls": []}]}, {"category": "Sequence change", "history_type": "SEQUENCE", "note": "Sequence change: A single nucleotide substitution was made in the intergenic region between ORFs UBR2/YLR024C and SNF7/YLR025W.\r\n

\r\nNew    193439   ATTGAAAGTATGAATGCGTTGATTATTGGGTTTCTCCCCACAGCTGTACATTGACGATGC  193498\r\n                ||||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||\r\nOld    193440   ATTGAAAGTATGAATGCGTTGATTATTGGGTTTCTCCCCACAGATGTACATTGACGATGC  193499", "date_created": "2011-02-16", "references": [{"id": 374815, "display_name": "Engel SR, et al. (2014)", "citation": "Engel SR, et al. (2014) The reference genome sequence of Saccharomyces cerevisiae: then and now. G3 (Bethesda) 4(3):389-98", "pubmed_id": 24374639, "link": "/reference/S000156273", "year": 2014, "urls": [{"display_name": "DOI full text", "link": "http://dx.doi.org/10.1534/g3.113.008995"}, {"display_name": "PMC full text", "link": "http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3962479/"}, {"display_name": "PubMed", "link": "http://www.ncbi.nlm.nih.gov/pubmed/24374639"}]}]}], "complexes": [{"format_name": "CPX-1624", "display_name": "ESCRT-III complex"}]},
        tabs: {"id": 1292623, "protein_tab": true, "interaction_tab": true, "summary_tab": true, "go_tab": true, "sequence_section": true, "expression_tab": true, "phenotype_tab": true, "literature_tab": true, "wiki_tab": false, "regulation_tab": true, "sequence_tab": true, "history_tab": true, "homology_tab": true, "disease_tab": false}
    };


	
	
	
    
    
	
    SNF7 | SGD
    
	
	
	









	
	

SNF7 / YLR025W Overview


Standard Name
SNF7 1
Systematic Name
YLR025W
SGD ID
SGD:S000004015
Aliases
RNS4 21 , VPL5 22 , DID1 11 , VPS32 23 24
Feature Type
ORF , Verified
Description
One of four core subunits of the ESCRT-III complex; involved in the sorting of transmembrane proteins into the multivesicular body (MVB) pathway; recruited from the cytoplasm to endosomal membranes; subunit of the endosomal sorting complex required for transport III (ESCRT-III) that forms flat spirals on lipid monolayers as part of the complexes role in driving membrane abscission 2 3 4 6
Name Description
Sucrose NonFermenting 5
Comparative Info
Sequence Details

Sequence

The S. cerevisiae Reference Genome sequence is derived from laboratory strain S288C. Download DNA or protein sequence, view genomic context and coordinates. Click "Sequence Details" to view all sequence information for this locus, including that for other strains.


Summary
SNF7/YLR205W is located on the right arm of chromosome XII near the centromere between UBR2 ubiquitin-protein ligase and SED5 cis-Golgi t-SNARE syntaxin; coding sequence is 723 nucleotides long with 3 synonymous SNPs
Protein Details

Protein

Basic sequence-derived (length, molecular weight, isoelectric point) and experimentally-determined (median abundance, median absolute deviation) protein information. Click "Protein Details" for further information about the protein such as half-life, abundance, domains, domains shared with other proteins, protein sequence retrieval for various strains, physico-chemical properties, protein modification sites, and external identifiers for the protein.


Summary
Snf7p is 240 amino acids long, of average half-life, low in abundance; contains disordered region in C-terminus; sumoylated on K79, ubiquitinylated on 3 lysines, phosphorylated on 13 residues
Length (a.a.)
240
Mol. Weight (Da)
26968.4
Isoelectric Point
4.37
Median Abundance (molecules/cell)
7483 +/- 2438
Half-life (hr)
10.2

Alleles

Curated mutant alleles for the specified gene, listed alphabetically. Click on the allele name to open the allele page. Click "SGD search" to view all alleles in search results.


View all SNF7 alleles in SGD search

Gene Ontology Details

Gene Ontology

GO Annotations consist of four mandatory components: a gene product, a term from one of the three Gene Ontology (GO) controlled vocabularies (Molecular Function, Biological Process, and Cellular Component), a reference, and an evidence code. SGD has manually curated and high-throughput GO Annotations, both derived from the literature, as well as computational, or predicted, annotations. Click "Gene Ontology Details" to view all GO information and evidence for this locus as well as biological processes it shares with other genes.


Summary
Subunit of the ESCRT III complex; involved in ubiquitin-dependent protein catabolism via the multivesicular body sorting pathway, late endosome to vacuole transport, intralumenal vesicle formation, ATP export, and the cellular response to anoxia; also localizes to the cytoplasm

View computational annotations

Molecular Function

Manually Curated

Biological Process

Manually Curated

Cellular Component

Manually Curated

Complex

Macromolecular complex annotations are imported from the Complex Portal. These annotations have been derived from physical molecular interaction evidence extracted from the literature and cross-referenced in the entry, or by curator inference from information on homologs in closely related species or by inference from scientific background.


Phenotype Details

Phenotype

Phenotype annotations for a gene are curated single mutant phenotypes that require an observable (e.g., "cell shape"), a qualifier (e.g., "abnormal"), a mutant type (e.g., null), strain background, and a reference. In addition, annotations are classified as classical genetics or high-throughput (e.g., large scale survey, systematic mutation set). Whenever possible, allele information and additional details are provided. Click "Phenotype Details" to view all phenotype annotations and evidence for this locus as well as phenotypes it shares with other genes.


Summary
SNF7/YLR025W is a non-essential gene; null mutants are viable but exhibit a range of phenotypic changes including decreased acid pH resistance, increased biofilm formation, abnormal chemical compound accumulation, increased chemical compound excretion, decreased chronological lifespan, abnormal colony appearance, decreased competitive fitness, decreased desiccation resistance, decreased endocytosis, increased heat sensitivity, decreased hyperosmotic stress resistance, altered metal resistance, increased nutrient utilization, decreased oxidative stress resistance, decreased replicative lifespan, altered resistance to chemicals, decreased respiratory growth rate, decreased sporulation efficiency, decreased telomere length, decreased toxin resistance, decreased transposable element transposition, decreased utilization rates of carbon and nitrogen sources, abnormal vacuolar morphology, decreased vegetative growth rate, decreased acquired thermotolerance, decreased protein secretion, increased protein/peptide accumulation, abnormal protein/peptide distribution and modification, decreased RNA accumulation, and absent vacuolar transport. Reduction of function mutants exhibit abnormal vacuolar transport, while activation mutants show abnormal lipid particle morphology. Overexpression of SNF7 results in decreased vegetative growth, abnormal actin cytoskeleton morphology, increased protein/peptide accumulation, and increased replicative lifespan.
Interaction Details

Interaction

Interaction annotations are curated by BioGRID and include physical or genetic interactions observed between at least two genes. An interaction annotation is composed of the interaction type, name of the interactor, assay type (e.g., Two-Hybrid), annotation type (e.g., manual or high-throughput), and a reference, as well as other experimental details. Click "Interaction Details" to view all interaction annotations and evidence for this locus, including an interaction visualization.


Summary
Snf7p interacts physically with proteins involved in transcription; SNF7 interacts genetically with genes involved in transcription

317 total interactions for 173 unique genes

Physical Interactions

  • Affinity Capture-MS: 47
  • Affinity Capture-RNA: 5
  • Affinity Capture-Western: 48
  • Co-fractionation: 1
  • Co-localization: 4
  • FRET: 1
  • PCA: 21
  • Reconstituted Complex: 19
  • Two-hybrid: 76

Genetic Interactions

  • Dosage Growth Defect: 5
  • Dosage Rescue: 8
  • Negative Genetic: 8
  • Phenotypic Enhancement: 12
  • Phenotypic Suppression: 15
  • Synthetic Growth Defect: 24
  • Synthetic Haploinsufficiency: 1
  • Synthetic Lethality: 10
  • Synthetic Rescue: 12
Regulation Details

Regulation

The number of putative Regulators (genes that regulate it) and Targets (genes it regulates) for the given locus, based on experimental evidence. This evidence includes data generated through high-throughput techniques. Click "Regulation Details" to view all regulation annotations, shared GO enrichment among regulation Targets, and a regulator/target diagram for the locus.


Summary
SNF7 promoter is bound by Ume6p and Yap6p in response to heat; SNF7 transcription is downregulated by Paf1p
Regulators
4
Targets
0
Expression Details

Expression

Expression data are derived from records contained in the Gene Expression Omnibus (GEO), and are first log2 transformed and normalized. Referenced datasets may contain one or more condition(s), and as a result there may be a greater number of conditions than datasets represented in a single clickable histogram bar. The histogram division at 0.0 separates the down-regulated (green) conditions and datasets from those that are up-regulated (red). Click "Expression Details" to view all expression annotations and details for this locus, including a visualization of genes that share a similar expression pattern.


Summary Paragraph

A summary of the locus, written by SGD Biocurators following a thorough review of the literature. Links to gene names and curated GO terms are included within the Summary Paragraphs.


Last Updated: 2006-03-01

Literature Details

Literature

All manually curated literature for the specified gene, organized into topics according to their relevance to the gene (Primary Literature, Additional Literature, or Review). Click "Literature Details" to view all literature information for this locus, including shared literature between genes.


Primary
105
Additional
91
Reviews
48

Resources


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