2019年3月18日 · The G2 phase of cell division comes after the DNA synthesis S phase and before the mitosis M phase. G2 is the gap between DNA replication and cell splitting and is used to assess the cell's readiness for mitosis. A key verification process is checking the …

G2 phase, Gap 2 phase, or Growth 2 phase, is the third subphase of interphase in the cell cycle directly preceding mitosis. It follows the successful completion of S phase, during which the cell’s DNA is replicated.

又名 周期蛋白 B1 ／ CDK1 复合体的 促成熟因子 （英语：Maturation promoting factor） 浓度达到一定程度后会使G2期结束 [4]，该复合体的活性在G2期受到严格控制。 G2检查点会通过CDK1的抑制性调节来中止DNA受到损伤的细胞继续分裂。 脊椎动物 细胞会在G2／M期 DNA损伤检查点 停止而不进入有丝分裂阶段，此时细胞会处理如氧化、紫外线或DNA嵌入剂等因素造成的DNA损伤。 [5]。 DNA若受损则会活化 转录因子 p53。 CDK1则会被p53的转录产物 p21 、 Gadd45 （英 …

G2期（G2 phase），即DNA合成后期，又叫做“ 有丝分裂 准备期”，主要为后面的 M期 做准备。 G2期中细胞快速生长并大量合成 有丝分裂 所需 蛋白质。 但有趣的是，G2期并不是 细胞周期 …

The G 2 phase is defined as a relatively short gap phase that begins when DNA synthesis is complete and CDK1 is activated, and is effectively at an end when prophase commences.

G2 is the shortest phase of interphase. It is when organelles and proteins necessary for cell division are produced. The cell requires a bunch of proteins and other stuff to separate the chromosomes and divide the cell in half. All of these materials are produced during G2. The cell also checks for DNA damage in this phase.

1 天前 · In late G2 phase, the CDK1/Cyclin B1 complex translocates to the nucleus, where it phosphorylates the S217 residue of CARM1.

2019年1月17日 · This is one of two 'gap' phases in the standard eukaryotic mitotic cell cycle. It is the interval between the completion of DNA synthesis and the beginning of mitosis. Protein synthesis occurs in this phase, following DNA replication in the S phase.

细胞分裂的G2期在DNA合成S期之后，在有丝分裂M期之前。 G2是DNA复制和细胞分裂之间的缺口，用于评估细胞是否有丝分裂。 关键的验证过程是检查重复的DNA是否存在错误。

During the second gap phase (G2), the cell prepares for the mitotic division. In mitosis, divided into prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis, the cell divides by segregating the chromosomes into two separate daughter cells.