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Literature summary extracted from

  • Ghosh, S.; Bagchi, S.; Lahiri Majumder, A.
    Chloroplast fructose-1,6-bisphosphatase from Oryza differs in salt tolerance property from the Porteresia enzyme and is protected by osmolytes (2001), Plant Sci., 160, 1171-1181.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.1.3.11 AMP non-competitive inhibition of cytosolic enzyme, the chloroplastic enzyme is AMP-insensitive Oryza coarctata
3.1.3.11 AMP non-competitive inhibition of cytosolic enzyme, the chloroplatic enzyme is AMP-insensitive Oryza sativa
3.1.3.11 KCl in vitro: at higher concentration KCl inhibits the salt-sensitive rice, but the salt-tolerant rice remains unaffected Oryza sativa
3.1.3.11 additional information not: NaCl, KCl, NH4Cl Oryza coarctata
3.1.3.11 additional information not: NH4CL Oryza sativa
3.1.3.11 NaCl in vivo: The presence of 100 mM NaCl in the growth medium only marginally alters the cytosolic and chloroplastic enzyme activities of salt-tolerant varieties whereas both the activities decline appreciably in salt-sensitive varieties tested. in vitro: comparison of inhibition of chloroplastic enzyme in a salt-sensitive and a salt-tolerant enzyme, protection against inhibition in salt-sensitve rice by mannitol, inositol, pinitol, sorbitol, trehalose, sucrose and proline Oryza sativa

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.1.3.11 0.066
-
 D-fructose 1,6-bisphosphate pH 7.5, 37°C, chloroplastic enzyme Oryza sativa
3.1.3.11 0.076
-
 D-fructose 1,6-bisphosphate pH 7.5, 37°C, chloroplastic enzyme Oryza coarctata

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
3.1.3.11 chloroplast
-
 Oryza sativa 9507
-
3.1.3.11 chloroplast
-
 Oryza coarctata 9507
-
3.1.3.11 cytosol
-
 Oryza sativa 5829
-
3.1.3.11 cytosol
-
 Oryza coarctata 5829
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.1.3.11 43000
-
 4 * 43000, SDS-PAGE Oryza sativa
3.1.3.11 43000
-
 4 * 43000, SDS-PAGE Oryza coarctata
3.1.3.11 170000
-
 chloroplastic enzyme Oryza sativa
3.1.3.11 170000
-
 chloroplastic enzyme Oryza coarctata

Organism

EC Number Organism UniProt Comment Textmining
3.1.3.11 Oryza coarctata
-
-
-
3.1.3.11 Oryza sativa
-
 seedlings, salt-sensitive and salt-tolerant varieties
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.1.3.11
-
 Oryza coarctata
3.1.3.11 salt sensitive enzyme IR26 Oryza sativa

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.3.11 leaf
-
 Oryza sativa
-
3.1.3.11 leaf
-
 Oryza coarctata
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1.3.11 additional information
-
 comparison of activities of chloroplastic and cytosolic enzyme in three salt-sensitive and seven salt-tolerant varieties in absence and presence of NaCl Oryza sativa
3.1.3.11 1.21
-
 cytoplasmic enzyme Oryza coarctata
3.1.3.11 3.67
-
 chloroplastic enzyme Oryza coarctata

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.3.11 D-fructose 1,6-bisphosphate + H2O
-
 Oryza sativa D-fructose 6-phosphate + phosphate
-
 ?
3.1.3.11 D-fructose 1,6-bisphosphate + H2O
-
 Oryza coarctata D-fructose 6-phosphate + phosphate
-
 ?

Subunits

EC Number Subunits Comment Organism
3.1.3.11 tetramer 4 * 43000, SDS-PAGE Oryza sativa
3.1.3.11 tetramer 4 * 43000, SDS-PAGE Oryza coarctata

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.1.3.11 7 7.5
-
 Oryza sativa
3.1.3.11 7 7.5
-
 Oryza coarctata