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Literature summary for 4.2.3.27 extracted from

  • Loivamaeki, M.; Louis, S.; Cinege, G.; Zimmer, I.; Fischbach, R.J.; Schnitzler, J.P.
    Circadian rhythms of isoprene biosynthesis in grey poplar leaves (2007), Plant Physiol., 143, 540-551.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
light
-
Populus tremula x Populus alba

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
dimethylallyl diphosphate Populus tremula x Populus alba
-
isoprene + diphosphate
-
?

Organism

Organism UniProt Comment Textmining
Populus tremula x Populus alba Q7XAS7 Grey poplar
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.000024
-
continuous light condition, time curve over 72h, experiment 2 Populus tremula x Populus alba
0.000027
-
continuous dark condition, time curve over 72h Populus tremula x Populus alba
0.000036
-
continuous light condition, time curve over 72h, experiment 1 Populus tremula x Populus alba

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
dimethylallyl diphosphate
-
Populus tremula x Populus alba isoprene + diphosphate
-
?

Synonyms

Synonyms Comment Organism
isoprene synthase
-
Populus tremula x Populus alba
ISPS
-
Populus tremula x Populus alba
PcISPS
-
Populus tremula x Populus alba

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
additional information
-
additional information turnover values ranging from 3.7 to 5.1 mmol isoprene mol-1 ISPS under darkness, long-day conditions, i.e. 16 h light, 8 h dark, and continuous light conditions Populus tremula x Populus alba

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
activity assay Populus tremula x Populus alba