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Systematic name YDR123C
Gene name INO2
Aliases DIE1, SCS1
Feature type ORF, Verified
Coordinates Chr IV:699468..698554
Primary SGDID S000002530

Description of YDR123C: Component of the heteromeric Ino2p/Ino4p basic helix-loop-helix transcription activator that binds inositol/choline-responsive elements (ICREs), required for derepression of phospholipid biosynthetic genes in response to inositol depletion[1][2][3][4]


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Protein Details

Protein Modification

Modification(s): Phosphorylation

Identified as an efficient substrate of Clb2-Cdk1-as1 in a screen of a proteomic GST-fusion library. [5] [6]



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  1. Ambroziak J and Henry SA (1994) INO2 and INO4 gene products, positive regulators of phospholipid biosynthesis in Saccharomyces cerevisiae, form a complex that binds to the INO1 promoter. J Biol Chem 269(21):15344-9 SGD PMID 8195172
  2. Gardenour KR, et al. (2004) Identification of novel dominant INO2c mutants with an Opi- phenotype. Mol Microbiol 52(5):1271-80 SGD PMID 15165231
  3. Hammond CL, et al. (1993) INO2, a regulatory gene in yeast phospholipid biosynthesis, affects nuclear segregation and bud pattern formation. Cell Mol Biol Res 39(6):561-77 SGD PMID 8012448
  4. Schuller HJ, et al. (1995) DNA binding site of the yeast heteromeric Ino2p/Ino4p basic helix-loop-helix transcription factor: structural requirements as defined by saturation mutagenesis. FEBS Lett 370(1-2):149-52 SGD PMID 7649294
  5. Ubersax JA, et al. (2003) Targets of the cyclin-dependent kinase Cdk1. Nature 425(6960):859-64 SGD PMID 14574415
  6. submitted by Jeff Ubersax on 2004-01-21

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