TOM70 / YNL121C Overview


Standard Name
TOM70 1
Systematic Name
YNL121C
SGD ID
SGD:S000005065
Aliases
MAS70 28 , MOM72 29 , OMP1
Feature Type
ORF , Verified
Description
Component of the TOM (translocase of outer membrane) complex; involved in the recognition and initial import steps for all mitochondrially-directed proteins, acting as a receptor for incoming precursor proteins; moonlighting role as a transcriptional regulator of mitochondrial proteins; age-dependent reduction in Tom70p results in mitochondrial dysfunction, a hallmark of aging; localizes to mitochondria–ER contact sites; TOM70 has a paralog, TOM71, that arose from the whole genome duplication 2 3 4 5 6 7 8
Name Description
Translocase of the Outer Mitochondrial membrane 1
Paralog
TOM71 6
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
TOM70 has a paralog, TOM71, that arose from the whole genome duplication
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.


Length (a.a.)
617
Mol. Weight (Da)
70110.7
Isoelectric Point
4.97
Median Abundance (molecules/cell)
14978 +/- 9530
Half-life (hr)
10.1

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. Click "YeastMine" to view all alleles in YeastMine.


View all TOM70 alleles in SGD search | YeastMine

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
Protein transmembrane transporter with mitochondrion targeting sequence binding activity involved in protein targeting to mitochondrion, protein import into mitochondrial matrix, and in protein insertion into mitochondrial inner membrane; subunit of mitochondrial outer membrane translocase complex

View computational annotations

Molecular Function

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
Non-essential gene; null mutant is petite-negative (loss of the mitochondrial genome is lethal), has a respiratory growth defect that is exacerbated at high temperature, and exhibits slow growth on fermentable carbon sources; null mutant shows increased replicative lifespan extension in response to caloric restriction, compared to wild type; in large-scale studies, null mutant has reduced competitive fitness in various media, decreased invasive growth, biofilm formation, and resistance to starvation and desiccation, and shows altered resistance to various chemicals
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
The tom70 null mutant is viable; the null mutant of paralog tom71 is viable; the tom70 tom71 double mutant displays a synthetic growth defect.

561 total interactions for 393 unique genes

Physical Interactions

  • Affinity Capture-MS: 38
  • Affinity Capture-RNA: 9
  • Affinity Capture-Western: 27
  • Biochemical Activity: 3
  • Co-fractionation: 15
  • Co-localization: 2
  • Co-purification: 4
  • FRET: 1
  • PCA: 11
  • Reconstituted Complex: 22
  • Two-hybrid: 1

Genetic Interactions

  • Dosage Growth Defect: 1
  • Dosage Rescue: 25
  • Negative Genetic: 347
  • Phenotypic Enhancement: 1
  • Phenotypic Suppression: 3
  • Positive Genetic: 20
  • Synthetic Growth Defect: 19
  • Synthetic Lethality: 7
  • Synthetic Rescue: 5
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.


Regulators
3
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: 2009-03-24

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
108
Additional
120
Reviews
84

Resources