1,5-二磷酸核酮糖 RuBP
C5H12O11P2 • xNa+ • yH2O MW 310.09 (anhydrous free acid basis) CAS:14689-84-0
Storage:-20℃
Appearance…………………white to off-white powder
Solubility……………………50mg/ml in H2O
Purity…………………………>90%
RuBP
名称:1,5-二磷酸核酮糖
在光合作用的碳反应过程中(三碳途径)中用于固定二氧化碳,实现5碳酸和5碳糖之间的转换。
一分子RuBP与一分子二氧化碳反应生成两分子磷酸甘油酸。
主要过程:
3-磷酸甘油酸(即3碳酸)与光反应阶段产生的NADPH和ATP结合被还原成3碳糖,部分3碳糖进一步成6碳糖等有机物,其余继续作用成为5碳糖。5碳糖和二氧化碳反应重新生成3碳酸。
RuBP羧化酶催化 将CO2加到RuBP的C-2上,形成中间产物2-羧基-3-酮基核糖醇-1,5-二磷酸,然后水解为两个分子的3-PGA
Product Name | D-Ribulose 1,5-bisphosphate sodium salt hydrate, ~90% |
Product Number | R0878 |
Product Brand | SIGMA |
CAS Number | (free acid) |
Molecular Weight | 310.09 (anhydrous free acid basis) |
Storage Temp | −20°C |
|
TEST | SPECIFICATION |
Appearance (Color) | White to Off-White |
Appearance (Form) | Powder |
Solubility (Color) | Colorless to Light Yellow |
| 50 mg plus 1 ml of water |
Solubility (Turbidity) | Clear |
Water (by Karl Fischer) | ≤16 % |
Proton NMR spectrum | Conforms to Structure |
13C NMR Identity | Conforms to Structure |
Phosphorus NMR Spectra | Conforms to Structure |
Solvent Content (by GC) | ≤5 % |
Phosphorus (Dry Basis) | 14 - 17 % |
Sodium (dry basis) | 18 - 23 % |
Note | ------------------------------ |
| The formula and formula weight are for the free |
| acid |