| 1. | It has been suggested that magnesium form a chelated structure with the phosphate groups .
有人指出，镁与磷酸基因能构成螯合结构。 |
| 2. | Dinucleotide a compound of two nucleotides linked by their phosphate groups . important examples are the coenzymes nad and fad
二核苷酸：由磷酸基团连接的两个核苷酸组成的化合物。例如辅酶nad和fad 。 |
| 3. | For example , hexokinase catalyzes the transfer of a high - energy terminal phosphate group form atp to glucose to give glucose 6 - phosphate and adp
例如：己糖激酶可以催化atp最末端的一个高能磷酸键转移到葡萄糖分子上，形成葡萄糖- 6 -磷酸和adp 。 |
| 4. | Adp ( adensine diphosphate ) a nucleotide consisting of adenine and ribose with two phosphate groups attached . the second phosphate is attached to the first by a high - energy bond
腺（嘌呤核）苷二磷酸：一种由腺嘌呤和核糖再加上两个磷酸组成的核苷酸。其中第二个磷酸以高能键与第一个磷酸结合。 |
| 5. | Chloroplast phosphoprotein were first found in thylakoid membranes by bennett o the attachment or removal of a phosphate group from a protein may have profound effects on that protein ' s activities and properties , the reversible phospharylation of the membrane protein in thykaloid is a dymanic equilibrium process
而bennett ( 1977 )发现的类囊体膜蛋白可逆磷酸化已成为近年研究的热点之一，蛋白质连上或是移去磷酸基团都将强烈影响蛋白质的生理活性和性质，这需要类囊体膜蛋白激酶和磷酸酯酶的参与。 |
| 6. | A mechanism that interprets this phenomenon was proposed as follows : the adsorbents can interact with phospholipid of ldl through calcium ion cross - linking of the phospholipid phosphate groups of ldl and the carboxyl groups of sde ligands . on the other hand , the electrostatic interaction between the positive charge of the phospholipid choline nitrogen of ldl and the negative charge of carboxyl groups of sde ligands is enhanced by the calcium cross - linking of the phosphate groups of neighboring phospholipids in ldl
其可能的原因是：在吸附体系中如存在大量的cay ，一方面ca可以作为桥梁连接ldl所含磷脂极性头部的磷酸基团和吸附微珠配体上的孩基；另一方面又可交联相邻磷脂间的磷酸基团，从而促进ldl所含磷脂极性头部的胆碱n ”与配体竣基的相互作用。 |
| 7. | Arginine rich human histone h3 is a kind of basic nucleosome protein . in the medium of physiological condition , by electrostatic interaction , histone h3 which arginine impart to it a positive charge binds to dna which phosphate groups impart to it a negative charge . in this paper , in order to establish a new technology of transfection , the functional domains la and ii gene segments of pea were lined with histone h3 gene segment , then a recombinant fusion protein was constructed which serves as c arrier for transfer of dna via receptor - mediated endocytosis
本实验在已成功获得的pea功能区a ，功能区基因片段与人组蛋白h3基因片段的克隆菌株的基础上，构建原核表达载体，将克隆质粒pmd - 18t - pea经nco ， mlu双酶切，回收酶切产物；将克隆质粒pmd - 18t - h3经mlu ， xho双酶切，回收酶切产物。 |
