细胞核

The egg cell is ready for a new nucleus.

该卵细胞为另一个新的细胞核准备。

The nucleus is removed from the egg cell.

将细胞核从该卵细胞中移除。

However, something similar could probably be made by inserting the nucleus of a human cell into the egg of another species, such as a rabbit.

然而，类似的事情可以通过把人类细胞核植入其他物种的卵细胞来完成。

This is a long, thin cell with an elongated nucleus.

它又细又长，有一个长梭形细胞核。

ARID (AT-rich interaction domain) protein is a transcription factor family in higher eukaryotes that regulates cell proliferation, development, and differentiation. Specificity of DNA binding ability in this family prefers AT-rich sequences, but some ARID family proteins are not sequence-specific DNA-binding proteins or they do not bind AT-rich sequences. We found two genes that encode ARID in Giardia lamblia genome database, garid1 and garid2. We analyzed the function of garid1 first. AU1-tagged gARID1 was found to localize to nuclei. During encystation, gARID1 mRNA level decreased emphatically, but protein level increased. We also found that gARID1 can bind AT-rich initiator of the cwp1 promoter by EMSA. Mutation analysis revealed gARID1 binding sequence was AGATC and AATAAAATA. We used ChIP to demonstrate that gARID1 can bind cwp1 gene promoter in vivo.

ARID(AT-rich interaction domain)蛋白质家族是真核生物的一种转因子，在许多同种的真核生物有它的同源基因，这个家族的蛋白质通常与调控细胞的生长、发育和分化的作用有关，而这个家族的蛋白质和DNA的结合能，各种ARID蛋白质的专一性尽相同，过大致上偏好於和AT-rich的序结合；我们已经在形鞭毛虫的基因组中找到个含有ARID 的基因，分别是garid1和garid2，我们首先对於garid1做分析；将AU1标记接到gARID1转染形鞭毛虫，用免疫萤光染色可发现gARID1存在於细胞核中。gARID1的讯息RNA在囊体化后会明显下，过其阳性染色和蛋白质表现有明显增加；EMSA实验中也发现gARID1会明显的与cwp1基因启动子之AT-rich initiator结合，经由突变序分析，也显示gARID1的结合序为AGATC和AATAAAATA，随后我们也用ChIP证明gARID1在细胞内也的确会和cwp1基因的启动子结合。

Objective:To investigate the effect of proliferating cell nuclear antigenin mice endometrium during early pregnancy.

目的：探讨增殖细胞核抗原mRNA及蛋白在早孕小鼠子宫内膜的作用。

Endomitosis The duplication of chromosomes without division of the nucleus, causing polyploidy and leading to an increase in nuclear and cytoplasmic volume.

核内有丝分裂：在细胞核不分裂的情况下进行染色体复制，产生多倍体并使细胞体积增大的一种有丝分裂形式。

Objective To study the clinical significance of telomerase and PCNA expression in gastric mucosa obtained from endoscopy.

目的 探讨胃粘膜活检标本端粒酶和增殖细胞核抗原的表达意义。

Researches on drosophila, mice and yeast also suggested that epistasis between nuclear and mitochondria affected significantly the phenotype of offspring.

细胞质效应在动植物中广泛存在，在模式生物果蝇、小鼠和酵母上的研究表明，细胞质与细胞核间的上位性互作效应对后代有明显的影响。

The amount of vimentin IF per cell was higher than those of tubulin and F-actin at 12-24h of culture, but it broken down and decreased steadily when the cells became differentiated into late erythroblast at 36-48h of culture, thus facilitated the eccentric nucleation which we regard it as the initial step of denucleation. Both of the fluorescence intensity of tubulin and actin exhibited a significant rise and aggregated between the extruding nucleus and incipient reticulocyte before and during denucleation, and finally play a role in the commitent to ennucleation, the second phase of denucleation.

在培养24小时前，每个细胞中波形纤维含量均高于同期微丝和微管蛋白含量，但在培养24-36小时的晚幼红细胞阶段，波形纤维蛋白降减和解聚，为核偏位创造了条件，这是排核的第一阶段，而随后微丝和微管蛋白的荧光染色强度则有所增加，并逐渐聚集在外排中的核与预期形成网织红细胞之间的缢痕区，在将细胞核排出的排核第二阶段起主要作用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。