NCBI Accession #
NP_177618.2
NCBI GenBank Nucleotide #
NM_106138.3
NCBI Official Full Name
Galactosyltransferase family protein
NCBI Official Symbol
AT1G74800
NCBI Official Synonym Symbols
F25A4.23; F25A4_23
NCBI Protein Information
Galactosyltransferase family protein
UniProt Synonym Gene Names
AtGALT5
UniProt Protein Name
Hydroxyproline O-galactosyltransferase GALT5
UniProt Synonym Protein Names
Beta-1,3-galactosyltransferase 18Curated
UniProt Primary Accession #
Q8RX55
UniProt Secondary Accession #
Q9SSG4; W8QP19
UniProt Related Accession #
Q8RX55
UniProt Comments
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.