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R8000

Sigma-Aldrich

D-核糖1,5-二磷酸羧化酶 来源于菠菜

partially purified powder, 0.01-0.1 unit/mg solid

同義詞:

3-磷酸-D-甘油酸羧裂合酶(二聚), Rubisco

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About This Item

CAS號碼:
酶委員會編號:
MDL號碼:
分類程式碼代碼:
12352204
NACRES:
NA.54

生物源

spinach

品質等級

形狀

partially purified powder

比活性

0.01-0.1 unit/mg solid

分子量

557 kDa

儲存溫度

−20°C

相關類別

一般說明

D-核酮糖1,5-二磷酸羧化酶(RUBISCO)占菠菜叶可溶蛋白总量的50%。
以一种557 kDa hexadecamer存在,它由8个分子量约为56 kDa的重链以及8个分子量约为14 kDa的轻链组成。每个分子包含一个镁离子。
最适pH:~7.9。
CO2的KM:~0.45 mM。
核糖二磷酸在浓度超过0.7 mM时具有抑制作用。正磷酸和硫酸铵是竞争性抑制剂。3-磷酸甘油酸是一种非竞争性抑制剂。

應用

菠菜D-核酮糖1,5-二磷酸羧化酶已用于:
  • 作为胃蛋白酶消化研究的测试蛋白
  • 检测其作为无害蛋白样品,对人肠上皮细胞系的影响
  • 和脱落酸的等温滴定量热法(ITC)和放射性标记结合检测

生化/生理作用

D-核酮糖1,5-二磷酸羧化酶(RUBISCO,核酮糖二磷酸羧化酶)的激活依赖Rubisco激活酶和分子伴侣。它参与植物光吸收事件,可催化核酮糖1,5-二磷酸的羧化和加氧。Rubisco酶的羧化活性受脱落酸抑制。

單位定義

在pH 7.8、25°C条件下,一单位可在每分钟将1.0 μmole的D-RuDP和CO2转化为2.0 μmole的D-3-磷酸甘油酸酯。

象形圖

Health hazard

訊號詞

Danger

危險聲明

防範說明

危險分類

Resp. Sens. 1

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


分析證明 (COA)

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Yuji Suzuki et al.
Journal of experimental botany, 64(4), 1145-1152 (2013-01-26)
Rubisco gene expression was examined in detail in rice (Oryza sativa L.) leaves at different positions, i.e. expanding, mature, and senescent leaves. Rubisco small subunit (RBCS) synthesis and RBCS mRNA levels were maximal in expanding leaves and gradually became lower
Romain A Studer et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(6), 2223-2228 (2014-01-29)
A well-known case of evolutionary adaptation is that of ribulose-1,5-bisphosphate carboxylase (RubisCO), the enzyme responsible for fixation of CO2 during photosynthesis. Although the majority of plants use the ancestral C3 photosynthetic pathway, many flowering plants have evolved a derived pathway
Libor Vítek et al.
Antioxidants (Basel, Switzerland), 11(11) (2022-11-12)
Oxidative stress and inflammation contribute significantly to atherogenesis. We and others have demonstrated that mildly elevated serum bilirubin levels protect against coronary and peripheral atherosclerosis, most likely due to the antioxidant and anti-inflammatory activities of bilirubin. The aim of the
Hiroyuki Ishida et al.
Biochimica et biophysica acta, 1837(4), 512-521 (2013-11-26)
Chloroplasts are the primary energy suppliers for plants, and much of the total leaf nitrogen is distributed to these organelles. During growth and reproduction, chloroplasts in turn represent a major source of nitrogen to be recovered from senescing leaves and
Ma Linglan et al.
Biological trace element research, 122(2), 168-178 (2008-01-15)
Characterized by a photocatalysis property, nanoanatase is closely related to the photosynthesis of spinach. It could not only improve light absorbance, transformation from light energy to electron energy, and active chemical energy, but also promote carbon dioxide (CO(2)) assimilation of

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