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MPact protein interaction

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About CYGD

MIPS Fungal Genomes

mips home MIPS-FUNGI-ADM      FTP
CHO1 CDP-diacylglycerol serine O-phosphatidyltransferase 
Alias:PSS; PSS1
Classification:known protein | 5422 Entries
Feature Type:CDS
   Blast-Simap    DNA VIEW    PROTEIN VIEW

Paralogs (11 %) ;  |  Homologs in   Hemiascomycota (96.7 %);  Basidiomycota (39.1 %);  Fungi (96.7 %);  Eukaryota (96.7 %);  Plants (49.6 %);  Mammalia (18.5 %);  Human (18.5 %);  Bacteria (35.9 %);  All except yeast (96.7 %)

  • partial homology between the structures of this yeast enzyme and phosphatidylglycerophosphate synthase of E.coli has been found (see D00171)
Functional Classification:
    ..lipid, fatty acid and isoprenoid metabolism
    ....membrane lipid metabolism
    ......phospholipid metabolism | 68 Entries | Evi
EC Number:
  • Transferases
    ..Transferring Phosphorus-Containing Groups
    ....Transferases for other substituted phosphate groups
    ......CDP-diacylglycerol?serine O-phosphatidyltransferase | 1 Entry | Evi
  • synthesis of phosphatidylcholine (bremer-greenberg pathway)
Localization:  CHO1 localization details
  • ER
  • ER
    ..ER membrane
  • mitochondria
  • microsomes

 Mitop2:  Mitochondrial probability - 96  %
  • phosphatidylserine synthase
  • phosphorylation is negligible at stationary phase
  • opi1 mutants have no regulation of INO1 or CHO1 in response to inositol
  • cAMP-specific phosphorylation occurs on a single serine residue
  • removal of first AUG results in an inactive form that is mainly cytoplasmic, but retains enough activity to complement null mutant
  • mechanism of dual localization is yet unknown
  • contains CDP-alcohol phosphotransferase motif: Asp-Gly-(X)2-Ala-Arg-(X)8-Gly-(X)3-Asp-(X)3-Asp | PUBMED
Phenotypes:  Disruption: CHO1 details
  • lethal
  • mutants have ethanolamine-choline auxotrophy and are defective in synthesis of phosphatidylcholine
  • Auxotrophies, carbon and nitrogen utilization defects
    ..other auxotrophies, carbon and nitrogen utilization defects | 20 Entries
  • Carbohydrate and lipid biosynthesis defects
    ..other carbohydrate and lipid biosynthesis defects | 36 Entries
  • overexpression of Pel1p in a cho1 null mutant can not restore wild-type properties
Click for larger Map
Physical Features
Coordinates:208473 - 207643 (C)
Length:831 nt
Exon Coordinates:208473 - 207643
GC Content:39.8 %
Protein Length:276 aa
Isoelectric Point:5.82
Molecular Weight:30804.7 Da
Transmembrane Domains:Begin - End / Length (aa)
85 - 107 / 23
161 - 183 / 23

2 TM- Domains
Retrieve Sequence: DNA /Protein
Literature | References
CYGD curated Lit.:PubMed
PubMed:Search abstracts
PubMed Central:Search full-text articles
Sequence References:
EMBL: X05944
EMBL: U18778
EMBL: D00171
PIR: S00080
NCBI: NP_010943
Additional Links:
  • SGD - Saccharomyces Genome Database
  • YGOB - Yeast Gene Order Browser
  • yMGV - yeast Microarray Global Viewer

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