NCBI Accession #
NP_001331991.1
NCBI GenBank Nucleotide #
NM_001345497.1
NCBI Official Full Name
inositol polyphosphate kinase 2 beta
NCBI Official Symbol
IPK2BETA
NCBI Official Synonym Symbols
ARABIDOPSIS THALIANA INOSITOL POLYPHOSPHATE KINASE 2 BETA; ATIPK2BETA; inositol polyphosphate kinase 2 beta; INOSITOL POLYPHOSPHATE KINASE 2 BETA; IPK2B; MAC9.7; MAC9_7
NCBI Protein Information
inositol polyphosphate kinase 2 beta
NCBI Summary
Encodes an inositol polyphosphate 3-/6-/5-kinase that is localized to the nucleus. Able to complement a mutation in a yeast transcriptional regulator gene (ARG82/IPK2).
UniProt Synonym Gene Names
IP3K; IPMK; AtIpk2-beta; AtIpk2beta
UniProt Protein Name
Inositol polyphosphate multikinase beta
UniProt Synonym Protein Names
Inositol polyphosphate 6-/3-/5-kinase beta; AtIpk2-beta; AtIpk2beta
UniProt Primary Accession #
Q9FLT2
UniProt Secondary Accession #
Q8LDQ5
UniProt Related Accession #
Q9FLT2
UniProt Comments
Inositol phosphate kinase with a broad substrate specificity. Phosphorylates inositol 1,4,5-trisphosphate (Ins(1,4,5)P3), inositol 1,4,5,6-tetrakisphosphate (Ins(1,4,5,6)P4), inositol 1,3,4,5-tetrakisphosphate (Ins(1,3,4,5)P4), inositol 1,3,4,6-tetrakisphosphate (Ins(1,3,4,6)P4) and inositol 1,2,3,4,6-pentakisphosphate (Ins(1,2,3,4,6)P5) but not inositol 1,4-bisphosphate (Ins(1,4)P2), inositol 1,3,4-trisphosphate (Ins(1,3,4)P3), inositol 1,2,6-trisphosphate (Ins(1,2,6)P3), inositol 3,4,5,6-tetrakisphosphate (Ins(3,4,5,6)P4), inositol 1,3,4,5,6-pentakisphosphate (Ins(1,3,4,5,6)P5), inositol 1,2,4,5,6-pentakisphosphate (Ins(1,2,4,5,6)P5) or inositol hexakisphosphate (InsP6). Involved in the auxin signaling pathway. Regulates axillary shoot branching and is required for phytate synthesis in seeds.