Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
cytosol | - |
Ricinus communis | 5829 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
107000 | - |
4 * 107000, PTPC, SDS-PAGE | Ricinus communis |
118000 | - |
x * 118000, BTPC, SDS-PAGE | Ricinus communis |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Ricinus communis | - |
cultivar Baker 296 | - |
Posttranslational Modification | Comment | Organism |
---|---|---|
phosphoprotein | PTPC of castor oil seeds is activated by phosphorylation at Ser-11 during endosperm development | Ricinus communis |
ubiquitination | PTPC of castor oil seeds is inhibited by monoubiquitination at Lys-628 during germination | Ricinus communis |
Purification (Comment) | Organism |
---|---|
butyl-Sepharose column chromatography | Ricinus communis |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | BTPC is present in leaf buds and young expanding leaves, but undetectable in fully expanded leaves | Ricinus communis | - |
additional information | BTPC is abundant in the inner integument, cotyledon, and endosperm of developing seeds | Ricinus communis | - |
seedling | occurs at low levels in roots and cotyledons of germinated seeds | Ricinus communis | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | BTPC tightly interacts with co-expressed PTPC to form the allosterically-desensitized class-2 PEPC heteromeric complex | Ricinus communis | ? | - |
? | |
phosphoenolpyruvate + HCO3- | - |
Ricinus communis | phosphate + oxaloacetate | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 118000, BTPC, SDS-PAGE | Ricinus communis |
homotetramer | 4 * 107000, PTPC, SDS-PAGE | Ricinus communis |
Synonyms | Comment | Organism |
---|---|---|
bacterial-type phosphoenolpyruvate carboxylase | - |
Ricinus communis |
BTPC | - |
Ricinus communis |
PEPC | - |
Ricinus communis |
plant-type phosphoenolpyruvate carboxylase | - |
Ricinus communis |
PTPC | - |
Ricinus communis |
General Information | Comment | Organism |
---|---|---|
physiological function | BTPC and thus class-2 PEPC up-regulation is a distinctive feature of rapidly growing and/or biosynthetically active tissues that require a large anaplerotic flux from phosphoenolpyruvate to replenish tricarboxylic acid cycle C-skeletons being withdrawn for anabolism | Ricinus communis |