MGA2/YIR033W Summary Help

Standard Name MGA2
Systematic Name YIR033W
Feature Type ORF, Verified
Description ER membrane protein involved in regulation of OLE1 transcription; inactive ER form dimerizes and one subunit is then activated by ubiquitin/proteasome-dependent processing followed by nuclear targeting; MGA2 has a paralog, SPT23, that arose from the whole genome duplication (1, 2, 3)
Name Description Multicopy suppressor of GAm1 (snf2) 4
Chromosomal Location
ChrIX:416124 to 419465 | ORF Map | GBrowse
Gbrowse
Gene Ontology Annotations All MGA2 GO evidence and references
  View Computational GO annotations for MGA2
Molecular Function
Manually curated
Biological Process
Manually curated
Cellular Component
Manually curated
Classical genetics
null
Large-scale survey
null
overexpression
Resources
362 total interaction(s) for 212 unique genes/features.
Physical Interactions
  • Affinity Capture-MS: 9
  • Affinity Capture-RNA: 2
  • Affinity Capture-Western: 4
  • Biochemical Activity: 2
  • PCA: 1
  • Reconstituted Complex: 3
  • Two-hybrid: 20

Genetic Interactions
  • Dosage Growth Defect: 1
  • Dosage Rescue: 3
  • Negative Genetic: 122
  • Phenotypic Enhancement: 28
  • Phenotypic Suppression: 99
  • Positive Genetic: 42
  • Synthetic Growth Defect: 15
  • Synthetic Lethality: 10
  • Synthetic Rescue: 1

Resources
Expression Summary
histogram
Resources
Localization
Phosphorylation PhosphoGRID | PhosphoPep Database
Structure
Homologs
sequence information
ChrIX:416124 to 419465 | ORF Map | GBrowse
SGD ORF map
Last Update Coordinates: 2011-02-03 | Sequence: 1994-12-10
Subfeature details
Relative
Coordinates
Chromosomal
Coordinates
Most Recent Updates
Coordinates Sequence
CDS 1..3342 416124..419465 2011-02-03 1994-12-10
Retrieve sequences
Analyze Sequence
S288C only
S288C vs. other species
S288C vs. other strains
Resources
External Links All Associated Seq | Entrez Gene | Entrez RefSeq Protein | MIPS | Search all NCBI (Entrez) | UniProtKB
Primary SGDIDS000001472
References cited on this page View Complete Literature Guide for MGA2
1) Chellappa R, et al.  (2001) The membrane proteins, Spt23p and Mga2p, play distinct roles in the activation of Saccharomyces cerevisiae OLE1 gene expression. Fatty acid-mediated regulation of Mga2p activity is independent of its proteolytic processing into a soluble transcription activator. J Biol Chem 276(47):43548-56
2) Shcherbik N, et al.  (2003) Rsp5p is required for ER bound Mga2p120 polyubiquitination and release of the processed/tethered transactivator Mga2p90. Curr Biol 13(14):1227-33
3) Byrne KP and Wolfe KH  (2005) The Yeast Gene Order Browser: combining curated homology and syntenic context reveals gene fate in polyploid species. Genome Res 15(10):1456-61
4) Zhang S, et al.  (1997) Genetic redundancy between SPT23 and MGA2: regulators of Ty-induced mutations and Ty1 transcription in Saccharomyces cerevisiae. Mol Cell Biol 17(8):4718-29