Literature summary for 2.7.1.90 extracted from

Guo, X.; Ronhovde, K.; Yuan, L.; Yao, B.; Soundararajan, M.P.; Elthon, T.; Zhang, C.; Holding, D.R.
Pyrophosphate-dependent fructose-6-phosphate 1-phosphotransferase induction and attenuation of Hsp gene expression during endosperm modification in quality protein maize (2012), Plant Physiol., 158, 917-929.

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Molecular Weight [Da]

Molecular Weight [Da]	Molecular Weight Maximum [Da]	Comment	Organism
61100	-	2 * 67700 + 2 * 61100, SDS-PAGE	Zea mays
67700	-	2 * 67700 + 2 * 61100, SDS-PAGE	Zea mays
260000	-	gel filtration	Zea mays

Organism

Organism	UniProt	Comment	Textmining
Zea mays	-	Quality Protein Maize	-

Source Tissue

Source Tissue	Comment	Organism	Textmining
endosperm	-	Zea mays	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
diphosphate + D-fructose 6-phosphate	-	Zea mays	phosphate + D-fructose 1,6-bisphosphate	-	r

Subunits

Subunits	Comment	Organism
heterotetramer	2 * 67700 + 2 * 61100, SDS-PAGE	Zea mays

Synonyms

Synonyms	Comment	Organism
PFP	-	Zea mays
pyrophosphate-dependent fructose-6-phosphate 1-phosphotransferase	-	Zea mays

Cofactor

Cofactor	Comment	Organism	Structure
additional information	the enzyme acts ATP-independent	Zea mays

Expression

Organism	Comment	Expression
Zea mays	there is a large increase in transcript and protein levels of the alpha-regulatory subunit (but not catalytic beta-subunit) of the enzyme in Quality Protein Maize endosperm. The enzyme is also coinduced with heat shock proteins in maize roots in response to heat (12 h at 42°C), cold (12 h at 4°C), and the unfolded protein response stresses in the presence of 5 mM dithiothreitol	up

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Release 2023.1 (January 2023)