F4IY62 · UGPA3_ARATH

Function

function

Involved in the biosynthesis of sulfolipids in the chloroplast. Catalyzes the first committed step in sulfolipid biosynthesis. Converts glucose 1-phosphate to UDP-glucose, the precursor of the polar head of sulfolipid. In addition to glucose 1-phosphate, can use galactose 1-phosphate, but with much lower activity. No uridyltransferase activity with other hexose monophosphates. Specific for UTP and cannot use ATP, CTP, and GTP.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Activity regulation

Inhibited by pyrophosphate.

Kinetics

KM SUBSTRATE pH TEMPERATURE[C] NOTES EVIDENCE
0.24 mMglucose 1-phosphate
0.031 mMUTP

GO annotations

AspectTerm
Cellular Componentchloroplast
Molecular FunctionUTP:glucose-1-phosphate uridylyltransferase activity
Biological Processsulfolipid biosynthetic process
Biological ProcessUDP-glucose metabolic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    UTP--glucose-1-phosphate uridylyltransferase 3, chloroplastic
  • EC number
  • Alternative names
    • UDP-glucose pyrophosphorylase 3

Gene names

    • Name
      UGP3
    • ORF names
      F27K19_220
    • Ordered locus names
      At3g56040

Organism names

  • Taxonomic identifier
  • Strain
    • cv. Columbia
  • Taxonomic lineage
    Eukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis

Accessions

  • Primary accession
    F4IY62
  • Secondary accessions
    • Q94B70
    • Q9LY42

Proteomes

Organism-specific databases

Genome annotation databases

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for transit peptide, chain.

TypeIDPosition(s)Description
Transit peptide1-72Chloroplast
ChainPRO_000043603073-883UTP--glucose-1-phosphate uridylyltransferase 3, chloroplastic

Proteomic databases

Expression

Induction

Induced by phosphate starvation.

Gene expression databases

Interaction

Protein-protein interaction databases

Structure

Family & Domains

Sequence similarities

Belongs to the UDPGP type 1 family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Sequence processing
    The displayed sequence is further processed into a mature form.
  • Length
    883
  • Mass (Da)
    99,043
  • Last updated
    2011-06-28 v1
  • Checksum
    F5F589A23E15EBF8
MANPQASPILHHPQNHLSLFHFRTTTSPRSFSSLHFRKPLLFLSSSSSFSSKLQQSEQQCNNHQVRHVSTVPVEYSTPTPPESDDFLSEIDRLKSLLSKLDVSKDLRRKDAVIDADSRVRRFFSENRGGLSKVFGYLGLNSNEMFLVKCVIAAGQEHALCMNYEEAFGEEEEEYTVRSSVKNALYALVEMIERFDVNSSGYKGRREMGTVLDSEEIAHFRKFLTFLEEIEQFYDCIGGIIGYQVMVLELLHQSSKRRNTNRSQLVEESLGCQYLEMHTPSVLDLTQEEDYASQAALWGIEGLPDLGEIYPLGGAADRLGLIDSETGECLPAAMLAHCGRTLLEGLIRDLQAREFLYFKLYGKQCVTPVAIMTSAAKNNHEHVSSLCERLKWFGRGQSNFRLFEQPLVPAVSAEDGQWIVSKPFVPVSKPGGHGVIWKLAYDKGVFNWFYDHGRKGATVRQVSNVVAATDVTLLALAGIGLRYNKKLGFASCKRNAGATEGINVLMEKKNFDGKWEYGISCIEYTEFDKFDISNRSPSSNGLQADFPANTNILYVDLHSAELIGSSSNAKSLPNMVLNTKKRIEYLDQYGDYHSVMGGRLECTMQNIADNFFNKFPSRCHGSLEDKLDTYIVYNERRKVTSSAKKKKPHASAALHQTPDGALLDILRNGYDLLTECDIKLPMIEANDKYVDSPPPYLILLHPALGPLWEVSRQKFKGGSISSCSELQLEIAEFSWNNVQVDGSLIVTAENAMGSTTPNDNGEPILQYGLRCGKCKLHNVNVVNRGIDWNSKSNVYWRNDVNRLETCKIILHGNAEFEASNVTIEGHHVFEVPDGHKLKITSGNAGLSINLEALKEEVMETGSWYWNYQLNGSHIHLQQVEVSQS

Sequence caution

The sequence AAK68751.1 differs from that shown. Reason: Frameshift
The sequence AAL47372.1 differs from that shown. Reason: Frameshift
The sequence CAB87858.1 differs from that shown. Reason: Erroneous gene model prediction

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AL163832
EMBL· GenBank· DDBJ
CAB87858.1
EMBL· GenBank· DDBJ
Genomic DNA Sequence problems.
CP002686
EMBL· GenBank· DDBJ
AEE79469.1
EMBL· GenBank· DDBJ
Genomic DNA
AY042811
EMBL· GenBank· DDBJ
AAK68751.1
EMBL· GenBank· DDBJ
mRNA Frameshift
AY064665
EMBL· GenBank· DDBJ
AAL47372.1
EMBL· GenBank· DDBJ
mRNA Frameshift

Genome annotation databases

Similar Proteins

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