NCBI Accession #
NP_564290.2
NCBI GenBank Nucleotide #
NM_102525.3
NCBI Official Full Name
Nucleotide-diphospho-sugar transferases superfamily protein
NCBI Official Symbol
IRX9-L
NCBI Official Synonym Symbols
I9H; IRREGULAR XYLEM 9 Homolog; IRREGULAR XYLEM 9-LIKE; T22C5.4
NCBI Protein Information
Nucleotide-diphospho-sugar transferases superfamily protein
NCBI Summary
Encodes a member of the GT43 family glycosyltransferases involved in glucuronoxylan biosynthesis: AT2G37090 (IRX9) and AT1G27600 (IRX9-L or I9H, IRX9 homolog); AT4G36890 (IRX14) and AT5G67230 (IRX14-L or I14H, IRX14 homolog). They form two functionally non-redundant groups essential for the normal elongation of glucuronoxylan backbone. I9H functions redundantly with IRX9, I14H is redundant with IRX14. IRX9 or I9H do not complement IRX14, IRX14 or I14H do not complement IRX9.
UniProt Protein Name
Probable beta-1,4-xylosyltransferase IRX9H
UniProt Synonym Protein Names
Protein IRREGULAR XYLEM 9 homolog; Xylan xylosyltransferase IRX9H
UniProt Primary Accession #
Q9SXC4
UniProt Secondary Accession #
Q8LD18; Q9SFZ7
UniProt Related Accession #
Q9SXC4
UniProt Comments
Involved in the synthesis of the hemicellulose glucuronoxylan, a major component of secondary cell walls. Probably involved in the elongation of glucuronoxylan xylosyl backbone.