Cloned (Comment) | Organism |
---|---|
expression of isozymes TbCPT1, TbCPT2, and TbCPT3 associated with rubber particles in transgenic Taraxacum brevicorniculatum plants | Taraxacum brevicorniculatum |
Protein Variants | Comment | Organism |
---|---|---|
additional information | CPT-RNAi plants show a significant reduction in rubber biosynthesis and a corresponding 50% increase in the levels of triterpenes and the main storage carbohydrate, inulin | Taraxacum brevicorniculatum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
polycis-polyprenyl diphosphate + isopentenyl diphosphate | Taraxacum kok-saghyz | - |
diphosphate + a polycis-polyprenyl diphosphate longer by one C5 unit | - |
? | |
polycis-polyprenyl diphosphate + isopentenyl diphosphate | Taraxacum brevicorniculatum | - |
diphosphate + a polycis-polyprenyl diphosphate longer by one C5 unit | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Taraxacum brevicorniculatum | - |
isozymes TbCPT1, TbCPT2, and TbCPT3 | - |
Taraxacum kok-saghyz | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
latex | the milky cytoplasm of specialized cells known as laticifers | Taraxacum kok-saghyz | - |
latex | the milky cytoplasm of specialized cells known as laticifers | Taraxacum brevicorniculatum | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
polycis-polyprenyl diphosphate + isopentenyl diphosphate | - |
Taraxacum kok-saghyz | diphosphate + a polycis-polyprenyl diphosphate longer by one C5 unit | - |
? | |
polycis-polyprenyl diphosphate + isopentenyl diphosphate | - |
Taraxacum brevicorniculatum | diphosphate + a polycis-polyprenyl diphosphate longer by one C5 unit | - |
? |
Synonyms | Comment | Organism |
---|---|---|
chain-elongating enzyme cis-prenyltransferase | - |
Taraxacum kok-saghyz |
chain-elongating enzyme cis-prenyltransferase | - |
Taraxacum brevicorniculatum |
CPT | - |
Taraxacum kok-saghyz |
CPT | - |
Taraxacum brevicorniculatum |
laticifer-specific rubber-forming enzyme | - |
Taraxacum kok-saghyz |
laticifer-specific rubber-forming enzyme | - |
Taraxacum brevicorniculatum |
Organism | Comment | Expression |
---|---|---|
Taraxacum brevicorniculatum | CPT expression is reduced by laticifer-specific RNA interference, CPT-RNAi | down |
General Information | Comment | Organism |
---|---|---|
malfunction | CPT-RNAi plants indicate a significant reduction in rubber biosynthesis and a corresponding 50% increase in the levels of triterpenes and inulin, the primary storage carbohydrate compared to wild-type plants. The laticifers in CPT-RNAi plants contained fewer and smaller rubber particles than wild-type laticifers. And a decrease is noted in the activity of hydroxymethylglutaryl-CoA reductase, a key enzyme in the mevalonate pathway, reflecting homeostatic control of the isopentenyl diphosphate pool, CPT RNAi silencing phenotypes, overview | Taraxacum brevicorniculatum |
physiological function | the species produce large amounts of high-quality natural rubber in its latex. This high-molecular mass biopolymer consists mainly of poly(cis-1,4-isoprene) and is deposited in rubber particles by particle-bound enzymes that carry out the condensation of isopentenyl diphosphate units. Large polymer formation is carried out by the chain-elongating enzyme cis-prenyltransferase, CPT | Taraxacum kok-saghyz |
physiological function | the species produce large amounts of high-quality natural rubber in its latex. This high-molecular mass biopolymer consists mainly of poly(cis-1,4-isoprene) and is deposited in rubber particles by particle-bound enzymes that carry out the condensation of isopentenyl diphosphate units. Large polymer formation is carried out by the chain-elongating enzyme cis-prenyltransferase, CPT | Taraxacum brevicorniculatum |