MGA1 / YGR249W Overview


Standard Name
MGA1 1
Systematic Name
YGR249W
SGD ID
SGD:S000003481
Feature Type
ORF , Verified
Description
Protein similar to heat shock transcription factor; multicopy suppressor of pseudohyphal growth defects of ammonium permease mutants 1 2
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.


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.)
456
Mol. Weight (Da)
50748.0
Isoelectric Point
9.99
Median Abundance (molecules/cell)
583 +/- 579

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 MGA1 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
Protein involved in pseudohyphal growth; localizes to chromatin

View computational annotations

Molecular Function

Manually Curated

Biological Process

Manually Curated

Cellular Component

Manually Curated
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.


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.


74 total interactions for 70 unique genes

Physical Interactions

  • Affinity Capture-MS: 1
  • Affinity Capture-RNA: 3
  • Biochemical Activity: 13
  • Two-hybrid: 4

Genetic Interactions

  • Dosage Lethality: 2
  • Dosage Rescue: 2
  • Negative Genetic: 41
  • Positive Genetic: 5
  • Synthetic Lethality: 3
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
MGA1 encodes a transcription factor that is a member of the E2F family, with similarity to heat shock transcription factors. Mutant phenotype and genetic interaction evidence indicate that Mga1p has a role in filamentous growth. Consistent with this, Mga1p binds to the promoters of many genes involved in filamentous growth, including FLO11. Mga1p binding to promoter regions requires the presence of Flo8p. MGA1 transcription is apparently controlled by six regulators of filamentous growth (Tec1p, Ste12p, Sok2p, Phd1p, Flo8p, and Mga1p itself) that bind to the MGA1 promoter region. Mga1p activity is likely to be regulated by the cAMP-protein kinase A (PKA) pathway, since it interacts physically with PKA (Tpk2p) and contains two consensus PKA phosphorylation sites.
Regulators
14
Targets
1
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.


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
15
Additional
28
Reviews
7

Resources