1D-myo-inositol hexakisphosphate biosynthesis III (Spirodela polyrrhiza)

Stevenson-Paulik J, Bastidas RJ, Chiou S, Frye RA, York JD. Generation of phytate-free seeds in Arabidopsis through disruption of inositol polyphosphate kinases. Proc. Natl. Acad. Sci. U.S.A. 2005 Aug 17;102(35):12612–7. doi: 10.1073/pnas.0504172102.; Raboy V. myo-Inositol-1,2,3,4,5,6-hexakisphosphate. Phytochemistry. 2003 Nov;64(6):1033–43. doi: 10.1016/s0031-9422(03)00446-1. PMID: 14568069.; Brearley CA, Hanke DE. Inositol phosphates in the duckweed Spirodela polyrhiza L. Biochem J. 1996 Feb 15;314 ( Pt 1)():215–25. PMID: 8660286; PMCID: PMC1217028.; Brearley CA, Hanke DE. Metabolic evidence for the order of addition of individual phosphate esters in the myo-inositol moiety of inositol hexakisphosphate in the duckweed Spirodela polyrhiza L. Biochem J. 1996 Feb 15;314 ( Pt 1)():227–33. PMID: 8660287; PMCID: PMC1217029.; Stephens LR, Irvine RF. Stepwise phosphorylation of myo-inositol leading to myo-inositol hexakisphosphate in Dictyostelium. Nature. 1990 Aug 09;346(6284):580–3. doi: 10.1038/346580a0. PMID: 2198472.

Metabolites

D-Glucose 6-phosphate

Formula: C6H13O9P (260.0297178)

CAS ID: 56-73-5

H+

Formula: H (1.0078246)

CAS ID: 12408-02-5

myo-Inositol

Formula: C6H12O6 (180.0633852)

CAS ID: 87-89-8

ATP(4-)

Formula: C10H12N5O13P3 (502.9644492)

CAS ID:

ADP(3-)

Formula: C10H12N5O10P2 (424.0059412)

CAS ID:



Enzyme

EC Number name full name note
2.7.1.64 inositol 3-kinase ATP:myo-inositol 1-phosphotransferase
5.5.1.4 inositol-3-phosphate synthase 1D-myo-inositol-3-phosphate lyase (isomerizing)


Proteins

Protein ID name full name