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Literature summary for 2.7.1.90 extracted from

  • Groenewald, J.H.; Botha, F.C.
    Down-regulation of pyrophosphate: fructose 6-phosphate 1-phosphotransferase (PFP) activity in sugarcane enhances sucrose accumulation in immature internodes (2008), Transgenic Res., 17, 85-92.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Saccharum sp. PFP influences the ability of young, biosynthetically active sugarcane culm tissue to accumulate sucrose but that the equilibrium of the glycolytic intermediates, including the stored sucrose, is restored when ATP-dependent phosphofructokinase and the residual PFP activity is sufficient to sustain the required glycolytic flux as the tissue matures. It suggests a role for PFP in glycolytic carbon flow, which could be rate limiting under conditions of high metabolic activity ?
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Organism

Organism UniProt Comment Textmining
Saccharum sp.
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Source Tissue

Source Tissue Comment Organism Textmining
internode pyrophosphate: fructose 6-phosphate 1-phosphotransferase activity is successfully down-regulated in sugarcane using constitutively expressed antisense and untranslatable forms of the sugarcane PFP-beta gene. In young internodal tissue activity is reduced by up to 70% while no residual activity can be detected in mature tissues. The transgenic plants show no visible phenotype or significant differences in growth and development under greenhouse and field conditions. Both the immature and mature internodes of the transgenic plants have significantly higher fibre contents Saccharum sp.
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information PFP influences the ability of young, biosynthetically active sugarcane culm tissue to accumulate sucrose but that the equilibrium of the glycolytic intermediates, including the stored sucrose, is restored when ATP-dependent phosphofructokinase and the residual PFP activity is sufficient to sustain the required glycolytic flux as the tissue matures. It suggests a role for PFP in glycolytic carbon flow, which could be rate limiting under conditions of high metabolic activity Saccharum sp. ?
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Synonyms

Synonyms Comment Organism
PFP
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Saccharum sp.
pyrophosphate: fructose 6-phosphate 1-phosphotransferase
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Saccharum sp.