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INO2 protein (Saccharomyces cerevisiae) - STRING interaction network
"INO2" - Component of the heteromeric Ino2p/Ino4p basic helix-loop-helix transcription activator that binds inositol/choline-responsive elements in Saccharomyces cerevisiae
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Predicted Interactions
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textmining
co-expression
protein homology
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INO2Component 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; Positive regulatory factor required for depression of the coregulated phospholipid biosynthetic enzymes. Also involved in the expression of ITR1 (304 aa)    
Predicted Functional Partners:
INO4
Transcription factor required for derepression of inositol-choline-regulated genes involved in phospholipid synthesis; forms a complex, with Ino2p, that binds the inositol-choline-responsive element through a basic helix-loop-helix domain; Transcriptional activator of phospholipid synthetic genes (such as INO1, CHO1/PSS, CHO2/PEM1, OPI3/PEM2, etc.) (151 aa)
       
 
  0.984
OPI1
Transcriptional regulator of a variety of genes; phosphorylation by protein kinase A stimulates Opi1p function in negative regulation of phospholipid biosynthetic genes; involved in telomere maintenance; Negative regulator of the transcriptional complex INO2- INO4 in response to phospholipid precursor availability. When precursors become limiting, OPI1 is retained at the endoplasmic reticulum (ER) and INO2-INO4 activates INO1 and other genes required for phospholipid biosynthesis, whereas abundant precursor availability results in targeting of OPI1 to the nucleus to repress transcripti [...] (404 aa)
       
 
  0.979
INO1
Inositol-3-phosphate synthase, involved in synthesis of inositol phosphates and inositol-containing phospholipids; transcription is coregulated with other phospholipid biosynthetic genes by Ino2p and Ino4p, which bind the UASINO DNA element (533 aa)
       
 
  0.969
HAC1
Basic leucine zipper (bZIP) transcription factor (ATF/CREB1 homolog) that regulates the unfolded protein response, via UPRE binding, and membrane biogenesis; ER stress-induced splicing pathway facilitates efficient Hac1p synthesis; Transcriptional activator involved in the unfolded protein response (UPR) pathway. Recognizes and binds to the UPR element (UPRE) in the promoter of UPR-regulated genes such as KAR2, PDI1, EUG1 and FKB2. Increases the synthesis of endoplasmic reticulum-resident proteins required for protein folding as well as components of the secretory pathway (238 aa)
       
 
  0.898
CHO1
Phosphatidylserine synthase, functions in phospholipid biosynthesis; catalyzes the reaction CDP-diaclyglycerol + L-serine = CMP + L-1-phosphatidylserine, transcriptionally repressed by myo-inositol and choline (276 aa)
           
  0.890
OPI3
Phospholipid methyltransferase (methylene-fatty-acyl-phospholipid synthase), catalyzes the last two steps in phosphatidylcholine biosynthesis; Catalyzes three sequential methylation reactions of phosphatidylethanolamine (PE) by AdoMet, thereby producing phosphatidylcholine (PC) (206 aa)
       
 
  0.869
SIN3
Component of the Sin3p-Rpd3p histone deacetylase complex, involved in transcriptional repression and activation of diverse processes, including mating-type switching and meiosis; involved in the maintenance of chromosomal integrity; Catalytic component of the RPD3 histone deacetylase complexes RPD3C(L) and RPD3C(S) responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developme [...] (1536 aa)
       
 
  0.841
CHO2
Phosphatidylethanolamine methyltransferase (PEMT), catalyzes the first step in the conversion of phosphatidylethanolamine to phosphatidylcholine during the methylation pathway of phosphatidylcholine biosynthesis; Catalyzes the first step in the conversion of phosphatidylethanolamine to phosphatidylcholine during the methylation pathway of phosphatidylcholine biosynthesis. Preferentially converts di-C16-1 substrates (869 aa)
       
 
  0.840
PCT1
Cholinephosphate cytidylyltransferase, also known as CTP-phosphocholine cytidylyltransferase, rate-determining enzyme of the CDP-choline pathway for phosphatidylcholine synthesis, inhibited by Sec14p, activated upon lipid-binding (424 aa)
       
 
  0.800
GAL4
DNA-binding transcription factor required for activating GAL genes; responds to galactose; repressed by Gal80p and activated by Gal3p; This protein is a positive regulator for the gene expression of the galactose-induced genes such as GAL1, GAL2, GAL7, GAL10, and MEL1 which code for the enzymes used to convert galactose to glucose. It recognizes a 17 base pair sequence in (5’-CGGRNNRCYNYNCNCCG-3’) the upstream activating sequence (UAS-G) of these genes (881 aa)
       
 
  0.785
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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