磷酸

BACKGROUND: One of the key neuropathological changes in Alzheimer disease is that neurofibrils over phosphorylated cytoskeletal protein composed of entwist together, and the phosphorylation of τ protein can be catalyzed by cyclin dependent kinase 5 (CDK5),however whether the phosphorylation of neurofilaments can be catalyzed by CDK5, as well as its role in the pathogenesis of Alzheimer diseases is less acknowledged.

背景：阿尔茨海默病的主要神经病理学特征之一是由过度磷酸化的细胞骨架蛋白如(o，神经细丝组成的神经原纤维缠结，细胞周期蛋白依赖性蛋白激酶5可催化蛋白的磷酸化，但神经细丝是否可被细胞周期蛋白依赖性蛋白激酶5磷酸化及其在阿尔茨海默病发病中的作用却知之甚少。

In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid, which is transported to the bundle sheath cells, where the carbon dioxide is released, then fixed by the enzyme ribulose bisphosphate carboxylase to form glycerate 3-phosphate, the first step in the Calvin cycle.

在叶肉细胞的叶绿体中二氧化碳与磷酸烯醇丙酮酸结合形成草酰乙酸，后被运到邻近的维管束鞘细胞，在那里二氧化碳被释放，后被核酮糖二磷酸羧化酶固定形成3－磷酸甘油酸，这是卡尔文的循环第一步。

Rubisco can also act as an oxygenase breaking down ribulose bisphosphate in the presence of oxygen to glycerate 3-phosphate and phosphoglycolic aid. This reaction forms the basis of PHOTOREESPIRATION.

此酶在有氧的情况下可为氧化酶，分解核酮糖－1，5－二磷酸生产3－磷酸甘油和磷酸乙醇酸，这一反应是光呼吸的基础。

Ribulose bisphotosphate carboxylase (RuBP carboxylase ; rubisco) An enzyme that catalyzes the carboxylation of ribulose biphosphate to two molecules of glycerate 3-phosphate, the carbon dioxide-fixing first step in the Calvin cycle of PHOTOSYNTHESIS.

1，5－二磷酸核酮糖羧化酶：催化核酮糖－1，5－二磷酸成为两分子3－磷酸甘油酸的酶，这是光合作用卡尔文循环中，二氧化碳固定的第一位反应。

Taking refined konjak powder as raw material, taking the mixture of NaH2PO4 and Na2HPO4 as phosphate esterification reagent, the konjac glucomannan phosphate ester was prepared under the dry condition, and the optimal process of konjac glucomannan phosphate ester was optimized by orthogonal test method.

方法］以细化的魔芋粉为原料，以NaH2PO4和Na2HPO4混合物为磷酸酯化试剂，在干法条件下，制备魔芋葡甘聚糖磷酸酯，并采用正交试验法优化魔芋葡甘聚糖磷酸酯最佳工艺。

The hepatic glycogen and the activities of ACP, LDH, returned to normal at 7th postoperative day in the Labiatae group.

3丹参组术后3天琥珀酸脱氢酶、镁离子激活三磷酸腺苷酶、葡萄糖-6-磷酸酶活性升高，术后7天肝糖原和乳酸脱氢酶、酸性磷酸酶活性回到正常水平。

The amino acid sequence similarity of C3d between human, bovine, goat, boar, golden hamste,rmouse,brown rat,Macropus, hare,Gallus is 80.4%,94.7%,96.9%,82.8%,81.1%,80.6%,80.2%,71.0%,75.2% and60.3% respectively..

通过生物学软件分析发现绵羊C3d蛋白有2个蛋白激酶C磷酸化位点，1个酪蛋白激酶Ⅱ磷酸化位点，1个酪氨酸激酶磷酸化位点，1个十四酰化位点。

Small amount of metaphosphoric acid is produced and remained on fiber.

磷酸致孔的机理主要是磷酸珠粒的阻碍造成类石墨微晶片层发展不完善，堆叠时发生扭曲或形成缺陷，磷酸与纤维素分子的酯化对微孔的生成有影响。

The Fine-Chemical Team, Kunming University of Science and Technology, adds some purifying agents into the solution of fertilizer-grade monoammonium phosphate, and makes it conform to the necessity of aluminium dihydrogen tripolyphosphate synthesis.

特别提到昆明理工大学精细化工教研室，开展了肥料级磷酸一铵水溶液添加一定的净化剂，可使磷酸一铵水溶液达到合成三聚磷酸二氢铝的要求。

On November 6, the United States International Trade Commission announced its preliminary decision to levy anti-dumping and countervailing tariffs on coated paper imported from China and Indonesia, as well as potassium pyrophosphate, monopotassium phosphate, potassium hydrogen phosphate imported from China.

6号，美国国际贸易委员会宣布针对中国。印尼输美铜版纸征收初步的反倾销反补贴关税，列入加收反倾销关税的产品还包从中国进口的括焦磷酸钾。磷酸二氢钾。磷酸氢钾产品

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。