乙酰磷酸

乙酰磷酸二锂盐的制备及含量测定

Preparation of acetylphosphate dilithium and its assay

厌氧条件下，乙酸激酶催化乙酰磷酸到乙酸的反应，反应过程产生ATP，这段富含G的保守区域可能是底物或者ATP的结合位点。

Under anaerobic condition , acetate kinase catalyzes reaction between acetyl phosphate and acetate acid with production of ATP . The conservative G-rich region may be the substrate or ATP binding site .

组蛋白H3氨基末端区域呈柔性游离状态，末端的侧链能被核内不同的酶甲基化、乙酰化以及磷酸化。

The histone H3 N-terminal region is a flexible tail which bears residues , with their side chains , that can be methylated , acetylated , and phosphorylated by different nuclear enzymes .

组蛋白尾巴可发生多种翻译后修饰过程，包括乙酰化、磷酸化、甲基化、泛素化、ADP-核糖基化等。

A variety of post-translational modifications , including acetylation , phosphorylation , methylation , ubiquitination , ADP-ribosylation can occur on the tail of histones .

背景与目的：细胞内存在多种蛋白质共价修饰方式，如乙酰化、磷酸化、泛素化、甲基化等，它们对蛋白质发挥正常的生物学功能起着重要作用。

Background & Objective : Several covalent modification of proteins , such as phosphorylation , acetylation , and methylation , play important role in biology function of protein .

红外光谱和核磁共振谱均证明了胞外多糖的衍生物已被成功制备；且胞外多糖的乙酰化和磷酸化取代度分别为0.53和0.048。

The FT-IR and NMR spectra showed that all the derivatives were successfully prepared . The degree of acetylation and phosphorylation were determined to be 0.53 and 0.048 , respectively .

氨酚待因是对乙酰氨基酚和磷酸可待因复方制剂的简称，其在临床应用已有40多年的历史，是治疗中等程度疼痛的精神类药品。

Paracetamol and Codeine phosphate , which has been used for 40 years , is a kind of spirit medicine to treat the mild pain .

在真核细胞，乙酰化是最普遍的共价修饰，且目前认为乙酰化比磷酸化有更广泛的底物。

In eukaryotic cells , acetylation is among the most common covalent modifications and ranks similar to the important master switch phosphorylation . Acetylation apparently shows a broader substrate spectrum than phosphorylation .