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Literature summary for 2.4.1.14 extracted from

  • Hashida, Y.; Hirose, T.; Okamura, M.; Hibara, K.I.; Ohsugi, R.; Aoki, N.
    A reduction of sucrose phosphate synthase (SPS) activity affects sucrose/starch ratio in leaves but does not inhibit normal plant growth in rice (2016), Plant Sci., 253, 40-49 .
    View publication on PubMed
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
UDP-alpha-D-glucose + D-fructose 6-phosphate Oryza sativa
-
 UDP + sucrose 6-phosphate
-
 ?

Organism

Organism UniProt Comment Textmining
Oryza sativa
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
 Oryza sativa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-alpha-D-glucose + D-fructose 6-phosphate
-
 Oryza sativa UDP + sucrose 6-phosphate
-
 ?

Synonyms

Synonyms Comment Organism
SPS1
-
 Oryza sativa
SPS11
-
 Oryza sativa
sucrose phosphate synthase
-
 Oryza sativa

General Information

General Information Comment Organism
malfunction knockdown and knockout mutants of isoform SPS1 show a 29-46% reduction in enzyme activity in the leaves, but the carbohydrate content in the leaves and plant growth are not significantly different from those of wild type plants. In a double knockout mutant of SPS1 and SPS11, an 84% reduction in leaf enzyme activity results in higher starch accumulation in the leaves than in the wild type leaves. However, the double knockout mutant plants grow normally Oryza sativa