GAL3 / YDR009W Overview
- Standard Name
- GAL3 1
- Systematic Name
- YDR009W
- SGD ID
- SGD:S000002416
- Feature Type
- ORF , Verified
- Description
- Transcriptional regulator; involved in activation of the GAL genes in response to galactose; forms a complex with Gal80p to relieve Gal80p inhibition of Gal4p; binds galactose and ATP but does not have galactokinase activity; GAL3 has a paralog, GAL1, that arose from the whole genome duplication 2 3 4 5
- Name Description
- GALactose metabolism
- Paralog
- GAL1 5
- Comparative Info
-
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
- GAL3 is located on the right arm of chromosome IV very near the centromere and between early-firing replication origin ARS1 and uncharacterized gene YDR010C; coding sequence is 1563 nucleotides long with 5 SNPs, only one of which causes an amino acid polymorphism, His/Asp at residue 352; GAL3 has paralog GAL1 from the whole genome duplication
Analyze Sequence
S288C only
BLASTN | BLASTP | Design Primers | Restriction Fragment Map | Restriction Fragment Sizes | Six-Frame Translation
S288C vs. other species
BLASTN vs. fungi | BLASTP at NCBI | BLASTP vs. fungi
S288C vs. other strains
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
- Gal3p is 520 amino acids long, very low in abundance; contains 4 galactokinase domains, 4 mevalonate kinase family signatures; phosphorylated on S10
- Length (a.a.)
- 520
- Mol. Weight (Da)
- 58126.7
- Isoelectric Point
- 6.97
- Median Abundance (molecules/cell)
- 863 +/- 346
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 GAL3 alleles in SGD search
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 binding protein involved in galactose metabolism and positive regulation of transcription from RNA polymerase II promoter by galactose; subunit of cytoplasm and nucleus
View computational annotations
Molecular Function
- Manually Curated
- enables protein binding (IPI)
Biological Process
- Manually Curated
- involved in galactose metabolic process (IMP)
- involved in maintenance of protein location (IMP)
- involved in positive regulation of transcription by RNA polymerase II (IMP)
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
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 in reference strain S288C; null mutant is unable to utilize galactose unless cells are respiratory-competent; null mutant grows poorly in the absence of oxygen and displays increased resistance to acetic acid
Classical Genetics
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
- Gal3p interacts physically with proteins involved in transcription, GAL3 interacts genetically with genes involved in transcription; The gal3 null mutant is viable, the null mutant of paralog gal1 is viable, the gal3 gal1 double mutant displays a variety of genetic interactions
114 total interactions for 67 unique genes
Physical Interactions
- Affinity Capture-MS: 1
- Affinity Capture-RNA: 1
- Affinity Capture-Western: 4
- Co-crystal Structure: 2
- Co-purification: 2
- FRET: 1
- PCA: 3
- Reconstituted Complex: 7
- Two-hybrid: 3
Genetic Interactions
- Dosage Rescue: 5
- Negative Genetic: 53
- Phenotypic Enhancement: 13
- Phenotypic Suppression: 5
- Positive Genetic: 6
- Synthetic Growth Defect: 1
- Synthetic Lethality: 4
- Synthetic Rescue: 3
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.
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: 2006-10-04
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.