Q9ASW1 · B3GTG_ARATH

Function

function

Possesses hydroxyproline O-galactosyltransferase activity. Transfers galactose from UDP-galactose to hydroxyproline residues in the arabinogalactan proteins (AGPs). Is specific for AGPs containing non-contiguous peptidyl hydroxyproline residues. Utilizes UDP-galactose solely as sugar donor. The addition of galactose onto the peptidyl hydroxyproline residues in AGP core proteins represents the first committed step in arabinogalactan polysaccharide addition. AGP glycans play essential roles in both vegetative and reproductive plant growth.

Cofactor

Mn2+ (UniProtKB | Rhea| CHEBI:29035 )

Pathway

Protein modification; protein glycosylation.

GO annotations

all annotationsall molecular functionnucleotide bindingmolecular_functionnucleic acid bindingdna bindingchromatin bindingdna-binding transcription factor activityrna bindingcytoskeletal motor activitycatalytic activitynuclease activitysignaling receptor bindingstructural molecule activitytransporter activitybindingprotein bindingtranslation factor activity, rna bindinglipid bindingkinase activitytransferase activityhydrolase activityoxygen bindingenzyme regulator activitycarbohydrate bindingsignaling receptor activitytranslation regulator activitytranscription regulator activityother molecular functionall biological processcarbohydrate metabolic processgeneration of precursor metabolites and energynucleobase-containing compound metabolic processdna metabolic processtranslationlipid metabolic processtransportresponse to stresscell cyclecell communicationsignal transductioncell-cell signalingmulticellular organism developmentcircadian rhythmbiological_processmetabolic processcatabolic processbiosynthetic processresponse to light stimulusresponse to external stimulustropismresponse to biotic stimulusresponse to abiotic stimulusresponse to endogenous stimulusembryo developmentpost-embryonic developmentfruit ripeningabscissionpollinationflower developmentcellular processprogrammed cell deathphotosynthesiscellular component organizationcell growthprotein metabolic processcellular homeostasissecondary metabolic processreproductive processcell differentiationprotein modification processgrowthepigenetic regulation of gene expressionresponse to chemicalanatomical structure developmentregulation of molecular functionother biological processall cellular componentcellular_componentextracellular regioncell wallintracellular anatomical structurenucleusnuclear envelopenucleoplasmnucleoluscytoplasmmitochondrionlysosomeendosomevacuoleperoxisomeendoplasmic reticulumgolgi apparatuscytosolribosomecytoskeletonplasma membranechloroplastplastidthylakoidmembraneexternal encapsulating structureother cellular component
Cell color indicative of number of GO terms
AspectTerm
Cellular ComponentGolgi apparatus
Cellular ComponentGolgi membrane
Molecular Functioncarbohydrate binding
Molecular Functionhydroxyproline O-galactosyltransferase activity
Biological Processarabinogalactan protein metabolic process
Biological Processmucilage biosynthetic process involved in seed coat development
Biological Processprotein O-linked glycosylation via hydroxyproline
Biological Processroot hair cell development

Keywords

Enzyme and pathway databases

Protein family/group databases

Names & Taxonomy

Protein names

  • Recommended name
    Hydroxyproline O-galactosyltransferase GALT3
  • EC number
  • Alternative names
    • Beta-1,3-galactosyltransferase 16

Gene names

    • Name
      GALT3
    • Synonyms
      B3GALT16
    • ORF names
      F24P17.7
    • Ordered locus names
      At3g06440

Organism names

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

Accessions

  • Primary accession
    Q9ASW1
  • Secondary accessions
    • Q4VWQ4
    • Q4VWQ5
    • Q9SQU7
    • W8QNR0

Proteomes

Organism-specific databases

Genome annotation databases

Subcellular Location

Golgi apparatus membrane
; Single-pass type II membrane protein

Features

Showing features for topological domain, transmembrane.

Type
IDPosition(s)Description
Topological domain1-20Cytoplasmic
Transmembrane21-37Helical; Signal-anchor for type II membrane protein
Topological domain38-619Lumenal

Keywords

Phenotypes & Variants

Disruption phenotype

Reduced levels of arabinogalactan proteins. Root hair defects. Reduced seed coat mucilage. Increased sensitivity to salt stress.

Variants

We now provide the "Disease & Variants" viewer in its own tab.

The viewer provides 68 variants from UniProt as well as other sources including ClinVar and dbSNP.

Go to variant viewer

PTM/Processing

Features

Showing features for chain, glycosylation.

Type
IDPosition(s)Description
ChainPRO_00003594261-619Hydroxyproline O-galactosyltransferase GALT3
Glycosylation79N-linked (GlcNAc...) asparagine
Glycosylation217N-linked (GlcNAc...) asparagine
Glycosylation568N-linked (GlcNAc...) asparagine
Glycosylation613N-linked (GlcNAc...) asparagine

Keywords

Proteomic databases

PTM databases

Expression

Tissue specificity

Expressed in juvenile leaves, stems, cauline leaves and siliques.

Gene expression databases

Interaction

Protein-protein interaction databases

Structure

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain166-344Galectin

Sequence similarities

Belongs to the glycosyltransferase 31 family.

Keywords

Phylogenomic databases

Family and domain databases

Sequence & Isoform

Align isoforms (2)
  • Sequence status
    Complete

This entry describes 2 isoforms produced by Alternative splicing.

Q9ASW1-1

This isoform has been chosen as the canonical sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

  • Length
    619
  • Mass (Da)
    70,635
  • Last updated
    2001-06-01 v1
  • Checksum
    755F1DFC9ECFDBD8
MKQFMSVVRFKFGFTSVRMRDWSVGVSIMVLTLIFIIRYEQSDHTHTVDDSSIEGESVHEPAKKPHFMTLEDLDYLFSNKSFFGEEEVSNGMLVWSRMRPFLERPDALPETAQGIEEATLAMKGLVLEINREKRAYSSGMVSKEIRRICPDFVTAFDKDLSGLSHVLLELPCGLIEDSSITLVGIPDEHSSSFQIQLVGSGLSGETRRPIILRYNVNFSKPSIVQNTWTEKLGWGNEERCQYHGSLKNHLVDELPLCNKQTGRIISEKSSNDDATMELSLSNANFPFLKGSPFTAALWFGLEGFHMTINGRHETSFAYREKLEPWLVSAVKVSGGLKILSVLATRLPIPDDHASLIIEEKLKAPSLSGTRIELLVGVFSTGNNFKRRMALRRSWMQYEAVRSGKVAVRFLIGLHTNEKVNLEMWRESKAYGDIQFMPFVDYYGLLSLKTVALCILGTKVIPAKYIMKTDDDAFVRIDELLSSLEERPSSALLYGLISFDSSPDREQGSKWFIPKEEWPLDSYPPWAHGPGYIISHDIAKFVVKGHRQRDLGLFKLEDVAMGIWIQQFNQTIKRVKYINDKRFHNSDCKSNYILVHYQTPRLILCLWEKLQKENQSICCE

Q9ASW1-2

  • Name
    2
  • See also
    sequence in UniParc or sequence clusters in UniRef
  • Differences from canonical

Computationally mapped potential isoform sequences

There is 1 potential isoform mapped to this entry

View all
EntryEntry nameGene nameLength
A0A2H1ZEH6A0A2H1ZEH6_ARATHGALT3590

Sequence caution

The sequence AAF08572.1 differs from that shown. Reason: Erroneous gene model prediction

Features

Showing features for sequence conflict, alternative sequence.

Type
IDPosition(s)Description
Sequence conflict2in Ref. 1; AAQ77230
Sequence conflict130in Ref. 1; AAQ77231
Sequence conflict134in Ref. 1; AAQ77230
Sequence conflict207in Ref. 1; AAQ77230/AAQ77231
Sequence conflict285in Ref. 1; AAQ77231
Sequence conflict311in Ref. 1; AAQ77230
Sequence conflict342in Ref. 1; AAQ77230
Sequence conflict368in Ref. 1; AAQ77230
Sequence conflict428in Ref. 1; AAQ77230/AAQ77231
Sequence conflict439in Ref. 1; AAQ77231
Sequence conflict467-470in Ref. 1; AAQ77231
Alternative sequenceVSP_036149552-559in isoform 2
Alternative sequenceVSP_036150560-619in isoform 2
Sequence conflict590in Ref. 1; AAQ77231

Keywords

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AY305276
EMBL· GenBank· DDBJ
AAQ77230.1
EMBL· GenBank· DDBJ
mRNA
AY305277
EMBL· GenBank· DDBJ
AAQ77231.1
EMBL· GenBank· DDBJ
mRNA
KJ138838
EMBL· GenBank· DDBJ
AHL38778.1
EMBL· GenBank· DDBJ
mRNA
AC011623
EMBL· GenBank· DDBJ
AAF08572.1
EMBL· GenBank· DDBJ
Genomic DNA Sequence problems.
CP002686
EMBL· GenBank· DDBJ
AEE74393.1
EMBL· GenBank· DDBJ
Genomic DNA
AF361640
EMBL· GenBank· DDBJ
AAK32808.1
EMBL· GenBank· DDBJ
mRNA
BT002218
EMBL· GenBank· DDBJ
AAN72229.1
EMBL· GenBank· DDBJ
mRNA

Genome annotation databases

Similar Proteins

Disclaimer

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