2.4.1.85: cyanohydrin beta-glucosyltransferase
This is an abbreviated version!
For detailed information about cyanohydrin beta-glucosyltransferase, go to the full flat file.
Word Map on EC 2.4.1.85
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2.4.1.85
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sorghum
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cyanogenic
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dhurrin
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bicolor
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glucosylates
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cyp71e1
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three-fold
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bitterness
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stereo-selectively
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r-mandelonitrile
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quantitative-pcr
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diglucoside
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testa
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mill
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amygdalus
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kernels
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batsch
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prunus
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prunasin
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metabolons
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compartmentalised
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non-bitter
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dulcis
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rosaceae
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almond
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erratum
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hypervariable
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regiospecificity
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geraniol
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udp-glucosyltransferase
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agriculture
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biotechnology
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synthesis
- 2.4.1.85
- sorghum
-
cyanogenic
- dhurrin
- bicolor
-
glucosylates
- cyp71e1
-
three-fold
-
bitterness
-
stereo-selectively
-
r-mandelonitrile
-
quantitative-pcr
- diglucoside
- testa
-
mill
- amygdalus
- kernels
- batsch
-
prunus
- prunasin
-
metabolons
-
compartmentalised
-
non-bitter
- dulcis
- rosaceae
- almond
-
erratum
-
hypervariable
-
regiospecificity
- geraniol
- udp-glucosyltransferase
- agriculture
- biotechnology
- synthesis
Reaction
Synonyms
cyanohydrin glucosyltransferase, cyanohydrin glycosyltransferase, glucosyltransferase, uridine diphosphoglucose-p-hydroxymandelonitrile, mandelonitrile glucosyltransferase, sbHMNGT, UDP-glucose-p-hydroxymandelonitrile glucosyltransferase, UDP-glucose:p-hydroxymandelonitrile-O-glucosyltransferase, UDP-glucosyltransferase, UGT85B1, uridine diphosphoglucose-cyanohydrin glucosyltransferase, uridine diphosphoglucose-p-hydroxymandelonitrile glucosyltransferase, uridine diphosphoglucose:aldehyde cyanohydrin beta-glucosyltransferase
ECTree
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Engineering
Engineering on EC 2.4.1.85 - cyanohydrin beta-glucosyltransferase
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E410A
glucosylation of mandelonitrile is 225fold reduced compared to wild-type enzyme
R201A
glucosylation of mandelonitrile is 20fold reduced compared to wild-type enzyme
S391A
glucosylation of mandelonitrile is 185fold reduced compared to wild-type enzyme
additional information
transgenic Arabidopsis thaliana plants that produce dhurrin are obtained by co-expression of CYP79A1/CYP71E1-CFP (cyan fluorescent protein)/UGT85B1-YFP (yellow fluorescent protein) and of CYP79A1/CYP71E1/UGT85B1-YFP (yellow fluorescent protein)
additional information
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transgenic Arabidopsis thaliana plants that produce dhurrin are obtained by co-expression of CYP79A1/CYP71E1-CFP (cyan fluorescent protein)/UGT85B1-YFP (yellow fluorescent protein) and of CYP79A1/CYP71E1/UGT85B1-YFP (yellow fluorescent protein)
additional information
construction of a knockout mutant by use of targeted induced local lesions in genomes (TILLING) to identify a line with a mutation resulting in a premature stop codon in the N-terminal region of UGT85B1. Plants homozygous for this mutation do not produce dhurrin and are designated tcd2 (totally cyanide deficient 2) mutants. Phenotype, detailed overview
additional information
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construction of a knockout mutant by use of targeted induced local lesions in genomes (TILLING) to identify a line with a mutation resulting in a premature stop codon in the N-terminal region of UGT85B1. Plants homozygous for this mutation do not produce dhurrin and are designated tcd2 (totally cyanide deficient 2) mutants. Phenotype, detailed overview
additional information
engineering for introduction of the dhurrin biosynthesis pathway, starting with L-tyrosine and comprising the enzymes CYP79A1, CYP71E1, and UGT85B1 into Nicotiana tabacum. Integration of genes CYP79A1, CYP71E1, and UGT85B1 into a neutral site of the Nicotiana tabacum chloroplast genome and functional expression, overview. The enzymes convert endogenous tyrosine into dhurrin using electrons derived directly from the photosynthetic electron transport chain, without the need for the presence of an NADPH-dependent P450 oxidoreductase. The dhurrin produced in the engineered plants amounted to 0.1-0.2% of leaf dry weight compared to 6% in the origin Sorghum bicolor
additional information
-
engineering for introduction of the dhurrin biosynthesis pathway, starting with L-tyrosine and comprising the enzymes CYP79A1, CYP71E1, and UGT85B1 into Nicotiana tabacum. Integration of genes CYP79A1, CYP71E1, and UGT85B1 into a neutral site of the Nicotiana tabacum chloroplast genome and functional expression, overview. The enzymes convert endogenous tyrosine into dhurrin using electrons derived directly from the photosynthetic electron transport chain, without the need for the presence of an NADPH-dependent P450 oxidoreductase. The dhurrin produced in the engineered plants amounted to 0.1-0.2% of leaf dry weight compared to 6% in the origin Sorghum bicolor