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OLE1 protein (Saccharomyces cerevisiae) - STRING interaction network
"OLE1" - Delta(9) fatty acid desaturase, required for monounsaturated fatty acid synthesis and for normal distribution of mitochondria in Saccharomyces cerevisiae
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Known Interactions
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Predicted Interactions
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protein homology
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OLE1Delta(9) fatty acid desaturase, required for monounsaturated fatty acid synthesis and for normal distribution of mitochondria; Stearyl-CoA desaturase that utilizes O(2) and electrons from reduced cytochrome b5 to introduce the first double bond into saturated fatty acyl-CoA substrates (PubMed-1978720, PubMed-7947684). Catalyzes the insertion of a cis double bond at the delta-9 position into fatty acyl-CoA substrates including palmitoyl-CoA and stearoyl-CoA (PubMed-1978720). Required for the biosynthesis of membrane phospholipids, cholesterol esters and triglycerides (PubMed-1978720, Pu [...] (510 aa)    
Predicted Functional Partners:
SPT23
ER membrane protein involved in regulation of OLE1 transcription, acts with homolog Mga2p; inactive ER form dimerizes and one subunit is then activated by ubiquitin/proteasome-dependent processing followed by nuclear targeting; Dosage-dependent suppressor of Ty-induced promoter mutations. May exert its suppression effect through protein- protein interactions since does not present any of the motifs generally found in transcriptional activators or DNA binding proteins (1082 aa)
       
 
  0.975
MGA2
ER membrane protein involved in regulation of OLE1 transcription, acts with homolog Spt23p; inactive ER form dimerizes and one subunit is then activated by ubiquitin/proteasome-dependent processing followed by nuclear targeting (1113 aa)
       
 
  0.957
ACC1
Acetyl-CoA carboxylase, biotin containing enzyme that catalyzes the carboxylation of acetyl-CoA to form malonyl-CoA; required for de novo biosynthesis of long-chain fatty acids; Carries out three functions- biotin carboxyl carrier protein, biotin carboxylase and carboxyltransferase. Involved in the synthesis of very-long-chain fatty acid synthesis which is required to maintain a functional nuclear envelope. Required for acylation and vacuolar membrane association of VAC8 which is necessary to maintain a normal morphology of the vacuole (2233 aa)
     
 
  0.940
FAA4
Long chain fatty acyl-CoA synthetase, activates imported fatty acids with a preference for C12-0-C16-0 chain lengths; functions in long chain fatty acid import; important for survival during stationary phase; localized to lipid particles; Esterification, concomitant with transport, of exogenous long-chain fatty acids into metabolically active CoA thioesters for subsequent degradation or incorporation into phospholipids. Contributes, with FAA1, to the activation of imported myristate (694 aa)
   
 
  0.939
FAA1
Long chain fatty acyl-CoA synthetase, activates imported fatty acids with a preference for C12-0-C16-0 chain lengths; functions in long chain fatty acid import; accounts for most acyl-CoA synthetase activity; localized to lipid particles; Esterification, concomitant with transport, of exogenous long-chain fatty acids into metabolically active CoA thioesters for subsequent degradation or incorporation into phospholipids. It may supplement intracellular myristoyl-CoA pools from exogenous myristate. Preferentially acts on C12-0-C16-0 fatty acids with myristic and pentadecanic acid (C15-0) [...] (700 aa)
   
 
  0.917
HRD1
Ubiquitin-protein ligase required for endoplasmic reticulum-associated degradation (ERAD) of misfolded proteins; genetically linked to the unfolded protein response (UPR); regulated through association with Hrd3p; contains an H2 ring finger; E3 ubiquitin-protein ligase which accepts ubiquitin specifically from endoplasmic reticulum-associated UBC1 and UBC7 E2 ligases, and transfers it to substrates promoting their degradation. Mediates the degradation of endoplasmic reticulum proteins (ERQC), also called ER-associated degradation (ERAD). Component of the HRD1 ubiquitin ligase complex, [...] (551 aa)
     
 
  0.894
SCS7
Sphingolipid alpha-hydroxylase, functions in the alpha-hydroxylation of sphingolipid-associated very long chain fatty acids, has both cytochrome b5-like and hydroxylase/desaturase domains, not essential for growth; Ceramide hydroxylase involved in the alpha-hydroxylation of sphingolipid-associated very long chain fatty acids. Hydroxylates the very long chain fatty acid of ceramides at C2 and C3 (384 aa)
     
 
  0.872
NPL4
Ubiquitin-binding protein involved in protein degradation; Cdc48p-Npl4p-Ufd1p complex participates in ER-associated degradation (ERAD) while Cdc48p-Npl4p-Vms1p complex participates in mitochondria-associated degradation (MAD); Involved in the import of nuclear-targeted proteins into the nucleus and the export of poly(A) RNA out of the nucleus. Has a role in the endoplasmic reticulum-associated degradation (ERAD) pathway. Required for the proteasome-dependent processing/activation of MGA2 and SPT23 transcription factors leading to the subsequent expression of OLE1. Has an additional rol [...] (580 aa)
       
 
  0.871
CYB5
Cytochrome b5, involved in the sterol and lipid biosynthesis pathways; acts as an electron donor to support sterol C5-6 desaturation; Membrane bound hemoprotein which function as an electron carrier for several membrane bound oxygenases. It plays a role in fatty-acid desaturation and is also involved in several steps of the sterol biosynthesis pathway, particularly in the 4- demethylation of the 4,4’-dimethyl zymosterol (120 aa)
     
 
  0.860
FAS1
Beta subunit of fatty acid synthetase, which catalyzes the synthesis of long-chain saturated fatty acids; contains acetyltransacylase, dehydratase, enoyl reductase, malonyl transacylase, and palmitoyl transacylase activities; Fatty acid synthetase catalyzes the formation of long- chain fatty acids from acetyl-CoA, malonyl-CoA and NADPH. The beta subunit contains domains for- [acyl-carrier-protein] acetyltransferase and malonyltransferase, S-acyl fatty acid synthase thioesterase, enoyl-[acyl-carrier-protein] reductase, and 3-hydroxypalmitoyl-[acyl-carrier-protein] dehydratase (2051 aa)
     
   
  0.854
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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