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Literature summary for 2.7.1.11 extracted from

  • Turner, W.L.; Plaxton, W.C.
    Purification and characterization of pyrophosphate- and ATP-dependent phosphofructokinases from banana fruit (2003), Planta, 217, 113-121.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1,3-diphosphoglycerate 0.385 mM and 0.005 mM, 50% inhibition of PFK I and PFK II respectively, phosphate relieves from inhibition Musa acuminata
2-phosphoglycerate 0.032 mM and 0.004 mM, 50% inhibition of PFK I and PFK II respectively, phosphate relieves from inhibition Musa acuminata
ADP 1.9 mM and 0.0006 mM, 50% inhibition of PFK I and PFK II respectively, phosphate relieves from inhibition Musa acuminata
phosphoenolpyruvate 0.0023 mM and 0.0009 mM, 50% inhibition of PFK I and PFK II respectively, phosphate relieves from inhibition Musa acuminata
Phosphoglycolate 0.006 mM and 0.003 mM, 50% inhibition of PFK I and PFK II respectively, phosphate relieves from inhibition Musa acuminata

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.021
-
ATP pH 7.3, 25°C, PFK II Musa acuminata
0.03
-
CTP pH 7.3, 25°C, PFK II Musa acuminata
0.032
-
UTP pH 7.3, 25°C, PFK II Musa acuminata
0.034
-
ATP pH 8.0, 25°C, PFK I Musa acuminata
0.035
-
ITP pH 7.3, 25°C, PFK II Musa acuminata
0.038
-
GTP pH 7.3, 25°C, PFK II Musa acuminata
0.055
-
ATP
-
Musa acuminata
0.055
-
UTP pH 8.0, 25°C, PFK I Musa acuminata
0.082
-
ITP pH 8.0, 25°C, PFK I Musa acuminata
0.099
-
CTP pH 8.0, 25°C, PFK I Musa acuminata

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
160000
-
PFK II, gel filtration Musa acuminata
210000
-
PFK I, gel filtration Musa acuminata

Organism

Organism UniProt Comment Textmining
Musa acuminata
-
L. cv. Cavendish, banana, isoenzymes PFK I and PFK II
-

Purification (Commentary)

Purification (Comment) Organism
PFK I and PFK II, butyl-Sepharose, DEAE-Fractogel, Superose 6 Musa acuminata

Source Tissue

Source Tissue Comment Organism Textmining
fruit ripened fruit Musa acuminata
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
5.5
-
PFK II Musa acuminata
6
-
PFK I Musa acuminata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + D-fructose 6-phosphate
-
Musa acuminata ADP + D-fructose 1,6-bisphosphate
-
?
CTP + D-fructose 6-phosphate
-
Musa acuminata CDP + D-fructose 1,6-bisphosphate
-
?
GTP + D-fructose 6-phosphate
-
Musa acuminata GDP + D-fructose 1,6-bisphosphate
-
?
ITP + D-fructose 6-phosphate
-
Musa acuminata IDP + D-fructose 1,6-bisphosphate
-
?
UTP + D-fructose 6-phosphate
-
Musa acuminata UDP + D-fructose 1,6-bisphosphate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.3
-
PFK II Musa acuminata
8
-
PFK I Musa acuminata

pH Range

pH Minimum pH Maximum Comment Organism
6.3 8.7 PFK II, approx. 30% of maximal activity at pH 6.5, approx. 10% of maximal activity at pH 8.6 Musa acuminata
6.5 9 PFK I, approx. 10% of maximal activity at pH 6.5, approx. 60% of maximal activity at pH 9.0 Musa acuminata