NCBI Accession #
NP_186872.1
NCBI GenBank Nucleotide #
NM_111090.4
NCBI Official Full Name
reversibly glycosylated polypeptide 1
NCBI Official Symbol
RGP1
NCBI Official Synonym Symbols
ARABIDOPSIS THALIANA REVERSIBLY GLYCOSYLATED POLYPEPTIDE 1; ATRGP1; F14P3.12; F14P3_12; reversibly glycosylated polypeptide 1
NCBI Protein Information
reversibly glycosylated polypeptide 1
NCBI Summary
RGP1 is a UDP-arabinose mutase that catalyzes the interconversion between the pyranose and furanose forms of UDP-L-arabinose. It appears to be required for proper cell wall formation. rgp1/rgp2 (at5g15650) double mutants have a male gametophyte lethal phenotype. RGP1 fusion proteins can be found in the cytosol and peripherally associated with the Golgi apparatus.
UniProt Synonym Gene Names
AtRGP1
UniProt Protein Name
UDP-arabinopyranose mutase 1
UniProt Synonym Protein Names
Reversibly glycosylated polypeptide 1
UniProt Primary Accession #
Q9SRT9
UniProt Secondary Accession #
O22427; W8PVH6
UniProt Related Accession #
Q9SRT9
UniProt Comments
UDP-L-arabinose mutase involved in the biosynthesis of cell wall non-cellulosic polysaccharides. Catalyzes the interconvertion of UDP-L-arabinopyranose (UDP-Arap) and UDP-L-arabinofuranose (UDP-Araf) in vitro. Preferentially catalyzes the formation of UDP-Arap from UDP-Araf. At thermodynamic equilibrium in vitro the ratio of the pyranose form over the furanose form is 95:5. Is not active on other UDP-sugars (UDP-Gal, UDP-Xyl, UDP-Glc, GDP-Man and GDP-Fuc) (PubMed:21478444). Functions redundantly with RGP2 and is essential for proper cell walls and pollen development. Probably involved in the formation of the pectocellulosic cell wall layer intine. Is probably active as heteromer in vivo (PubMed:17071651).