查询词典 acetylating

Histone acetyltransferase CBP/p300 remodels chromatin by acetylating histones resulting in open structure of chromatin and active transcription.

转录辅因子CBP／p300本身具有组蛋白乙酰转移酶活性，参与许多基因的转录调控过程。

The title compound used as an amino acetylating reagent was further reacted to yield Cefepime hydrochloric acid, the crystals obtained has white pale color and is stable to temperature, and has no E-isomer too.

用其作为氨基酰基化试剂进一步合成盐酸头孢吡肟，也得到基本上白色的对温度稳定的不含E-异构体的晶态化合物。

The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.

提出了以高氯酸为催化剂，分析纯乙酸乙酯为介质，乙酰化法测定伯、仲醇的实验条件，实现了对经典方法的改进，简化了操作程

After acetylating, the effect of the transformed PAF on platelet aggregation was compared with that induced by standard PAF for quantification.

目前发现PAF除引起血小板聚集外，还具有较为广泛的生物学作用，如增加血管通透性、促进白细胞趋化与激活、扩张血管、抑制心功能及收缩支气管等〔。

The over expression of p33(superscript ING1b) can promote the expression of p21(superscript WAP1) which cooperates with p53 to restrain the cell growth by regulating the activity of the acetylating depended pathway.

ING1基因可能是通过乙酰化依赖通路的活性调节来改变基因的表达，参与多种过程的调控。

The over expression of p33^ING1b can promote the expression of p21^WAP1 which cooperates with p53 to restrain the cell growth by regulating the activity of the acetylating depended pathway.

ING1编码的蛋白通过组蛋白乙酰转移酶和组蛋白去乙酰化酶参与染色质的重塑，在DNA损伤修复方面发挥重要作用。

Three methodsconventional direct acylation,acylation by phase transfer catalyst(PTC,and ionexchange-acylation were selected for the purpose of acetylating κ-carrageenan with 30kDa molecular weight.

选择常规直接酰化、相转移催化酰化和离子交换-酰化共3种方法对3万中等分子量的κ-卡拉胶进行了乙酰化反应。

And the acetylating time influences derivatizationsignificantly.

结果表明，还原温度和乙酰化时间的影响最为显著。

In this issue, now show that the multisubunit histone acetyltransferase Elongator may regulate migration and branch formation of cortical neurons in the developing mouse brain by acetylating -tubulin.

本文研究显示，在老鼠大脑发育时期，多亚基组蛋白乙酰基转移酶Elongator能通过乙酰化微管蛋白，调控大脑皮层神经分支的迁移与形成。

"Acetylating H3K4 and demethylating H3K9 can actiate a gene; deacetylating H3K4 and methylating H3K9 can silence it," Karpen explains."Multiply modified at arious locations, these histones are a major factor in changing the functions of chromatin, independent of DNA sequence."

&H3K4的乙酰化和H3K9的去甲基化使基因活化；而H3K4去乙酰化和H3K9的甲基化则使基因沉默，& Karpen讲解道，&组蛋白的多部位多重调节是改变染色质功能的主要因素，并与DNA的序列无关&

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。