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5.5.1.24: tocopherol cyclase

This is an abbreviated version!
For detailed information about tocopherol cyclase, go to the full flat file.

Word Map on EC 5.5.1.24

Reaction

delta-tocopherol
=
2-methyl-6-phytylbenzene-1,4-diol

Synonyms

2,3-dimethyl-5-phytyl-1,4-hydroquinone cyclase, DMPQ cyclase, slr1737, SXD1, TC/VTE1, VTE1

ECTree

     5 Isomerases
         5.5 Intramolecular lyases
             5.5.1 Intramolecular lyases (only sub-subclass identified to date)
                5.5.1.24 tocopherol cyclase

Expression

Expression on EC 5.5.1.24 - tocopherol cyclase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
enzyme expression is fast downregulated by cold (6.5fold at 4°C)
enzyme expression level in lettuce is increased under high light and drought treatment
photooxidative stress results in an increase in enzyme activity
the enzyme is highly expressed following NaCl treatment (250 mM)
the enzyme is induced significantly by abiotic stresses such as high salt, H2O2, drought, cold, absisic acid and salicylic acid
-
the expression level of the enzyme peaks after 6 days of high light treatment (light intensity: 0.28 mM m-2 s-1) and 9 days of drought (no irrigation) treatment, declining thereafter
-