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Gene and DNA Sequence
Record information and status
Record ID
Date of creation
2011-01-20 12:48 UTC (german_bch@bvl.bund.de)
Date of last update
2012-07-25 20:48 UTC (dina.abdelhakim@cbd.int)
Date of publication
2012-07-25 20:48 UTC (dina.abdelhakim@cbd.int)

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General information
Name of the gene or DNA sequence
Sinapoylglucose:choline sinapoyltransferase
Category of DNA sequence
  • Protein coding sequence
Is the gene / DNA sequence is a synthetic molecule?
Donor organism
Donor organism
Brassica napus - Turnip, Rapeseed, Canola Plant, Oilseed Rape, Rape, BRANA
Characteristics of the protein coding sequence
Name of the protein expressed by the coding sequence
Sinapoylglucose:choline sinapoyltransferase (SCT); sinapine synthase
Biological function
In oilseed rape plants Sinapoylglucose:choline sinapoyltransferase (SCT) catalyses the conversion of sinapoylglucose to sinapoyl-choline (sinapine).

A number of plant components like sinapic acid esters restrict the use of oilseed rape products in human and animal nutrition. In oilseed rape these compounds are present in much higher concentrations than in other oil-rich seeds, which accounts for the bitter taste and astringency of oilseed rape products.

The phenolic compounds present in oilseed rape can form complexes with the oilseed rape protein, thus reducing the high nutritional value of the protein. Moreover, these phenolic compounds give rise to an undesirable dark colouration of oilseed rape protein products. Sinapic acid esters, which mainly consist of the bitter substance sinapine (or sinapoyl-choline), normally make up 1-2% of rapeseed meal. Sinapine is the most frequently occurring phenolic acid ester compound, accounting for approximately 80% of the total phenolic content.

By suppressing sinapoylglucose:choline sinapoyltransferase the sinapine content in the seeds of the GM oilseed rape plants is reduced.
Related trait(s) or use(s) in biotechnology

Records referencing this document (3)
3record(s) found
Country's Decision or any other Communication1 record
Modified Organism1 record
Risk Assessment1 record