CellCycle:G1／SCheckPoint
The G1/S cell cycle checkpoint controls the passage of eukaryotic cells from the first 'gap' phase (G1) into the DNA synthesis phase (S). Two cell cycle kinases, CDK4/6-cyclin D and CDK2-cyclin E, and the transcription complex that includes Rb and E2F are pivotal in controlling this checkpoint. During G1 phase, the Rb-HDAC repressor complex binds to the E2F-DP1 transcription factors, inhibiting the downstream......阅读全文
Cell－Cycle:－G1/S－Check－Point
The G1/S cell cycle checkpoint controls the passage of eukaryotic cells from the first 'gap' phase (G1) into the DNA synthesis phase (S). Two
CELL－CYCLE－ANALYSIS
PROPIDIUM IODIDE: The most commonly used dye for DNA content/cell cycle analysis is PROPIDIUM IODIDE (PI). It can be used to stain whole cells or isol
DNA－Cell－Cycle
Solutions70% ethanolribonuclease (100 µg/ml DNase free, Sigma)propidium iodide ( 50 µg/ml in PBS)ProcedureHarvest cells. Spin at 1200 rpm for 5 minute
Cyclins－and－Cell－Cycle－Regulation
The cell cycle is regulated by the interplay of many molecules. Key among these are the cyclins which are expressed and then degraded in a concerted f
Yeast－Cell－Cycle－by－Flow－Cytometry
ReagentsCold absolute ethanol.0.5 M Na citrate stock (filtered), 50mM diluted stock.10 mg/ml RNase A (Boil 10 mins, cool, filter and store at -20°C).4
Flow－Cytometric－Analysis－of－Cell－Cycle
Fixation1) Collect 2 X 106 cells.2) Pellet cells by spinning at 1,000 rpm, 4°C for 5 minutes.3) Resuspend cell pellet in 1 ml of cold PBS.4) Fix cells
RB－Tumor－Suppressor/Checkpoint－Signaling－in－response－to－DNA－damage
Cell cycle checkpoint controls at the G1 to S transition and the G2 to M transition prevent the cell cycle from progressing when DNA is damaged. The A
BTG－family－proteins－and－cell－cycle－regulation
BTG2 is found to be one of the immediate early genes up-regulated by neural growth factor (NGF) and epidermal growth factor (EGF). Its transcriptional
PTEN－dependent－cell－cycle－arrest－and－apoptosis
PTEN is a tumor suppressor gene. Recombinant PTEN is capable of dephosphorylating phosphatidylinositol 3,4,5-triphosphate[PI(3,4,5)P3], the product of
Cell－Cycle－Staining－ProtocolDAPI
1. Harvest cells- wash 2X in PBS to get rid of serum proteins. 1200rpm, 5 min2. Resuspend pellet (up to 3x106 cells) in 1.2 ml PBS (Ca and Mg free).3.
Cell－cycle－analysis－of－Escherichia－coli－cells
Cell cycle analysis of Escherichia coli cellsC period = the time for a round of chromosome replicationD period = the time between the end of a round o
FIXATION－and－DNA－Staining－for－Cell－Cycle－Analysis
BackgroundThis method of DNA staining utilizes ethanol to fix the cells and permeabilize the membrane, which allows the dye (Propidium Iodide) to ente
Regulation－of－cell－cycle－progression－by－Plk3
The focus of this pathway is to illustrate the role of Polo-like Kinase 3 (Plk3 also known as Prk and Fnk) as part of the regulatory cascade leading t
Cell－Cycle:－G2/M－Checkpoint
The G2/M DNA damage checkpoint prevents the cell from entering mitosis (M phase) if the genome is damaged. The Cdc2-cyclin B kinase is pivotal in regu
Cell－Cycle：细胞永生化研究进展
每一天，你身体内的一些细胞会停止分裂，这是一件好事。而有些细胞会无限增殖，这是大多数恶性肿瘤发展的一个重要早期步骤。 尽管细胞无限增殖在癌症中有着非常的重要性，但研究人员一直对于细胞永生化背后的分子机制知之甚少。这是因为科学家缺乏好方法研究永生化人类细胞。在发表在Cell Cycle 杂志上的
Cell－Cycle－－J－Neurosci：脊髓损伤引发大脑损害
很多脊髓损伤的研究都集中于揭示脊髓损伤所引发的效应，然而往往在研究中科学家们很容易忽视脊髓损伤对大脑所引发的效应。近日，来自马里兰大学的研究人员通过研究首次揭示，脊髓损伤（SCI）可以促进广泛和持续的大脑炎症，进而引发神经细胞的逐渐缺失以及认知问题和抑郁症等。 相关研究发表于国际杂志Journ
Regulation－of－p27－Phosphorylation－during－Cell－Cycle－Progression
p27/Kip1 regulates the cell cycle by inhibiting the checkpoint kinase cdk2/cyclin E and blocking cell cycle progression through the G1-S transition. C
Sonic－Hedgehog－(SHH)－Receptor－Ptc1－Regulates－cell－cycle
Sonic Hedgehog (Shh) is a secreted protein identified genetically as an important developmental factor. Shh provides a morphogenic signal in the devel
Estrogenresponsive－protein－Efp－controls－cell－cycle－andbreast－tumors－growth
The estrogen-inducible RING finger protein Efp stimulates proliferation of breast cancer cells. 14-3-3 is p53-inducible protein that sequesters mitoti
Cell－Cycle：乳腺癌细胞耐药性的分子机理
近日，来自Norris Cotton综合癌症研究中心的研究人员通过研究开发了一种治疗ERBB2（人类表皮生长因子受体II）阳性乳腺癌的新型疗法，该类乳腺癌通常会对疗法产生强烈的耐药性，相关研究刊登于国际杂志Cell Cycle上，该研究为揭示新型的癌症耐药机制提供了一定的线索。 研究者Kuro
细胞周期试剂盒Cell－cycle－staining－Kit中文操作步骤
试剂盒特点：1、独创的活细胞一步法检测，收集——洗涤——染色，简单快速 2、兼容固定细胞检测，改进的固定方法，更少细胞粘连，更小CV值 3、兼容流式和荧光显微镜分析，提供详细protocol固定细胞处理：1、收集细胞悬液，细胞数为2 × 10^5 ~ 1 × 10^6。离心沉淀细胞，去上清，
The－Citric－Acid－Cycle
The Krebs cycle, also called the citric acid cycle, is a fundamental metabolic pathway involving eight enzymes essential for energy production through
Wound－healing－assay
The wound healing assay allows the researcher to study cell migration and cell interactions. In some cases also single cell migration can be analyzed.
The－SARScoronavirus－Life－Cycle
Severe Acute Respiratory Syndrome (SARS) has affected thousands of individuals, causing fever, and pneumonia with a mortality rate estimated at 10-18%
Realtime－PCR
实验概要The exponential amplification via reverse transcription polymerase chain reaction provides for a highly sensitive technique in which a very low
Large－Scale－Plasmid－Preps:－Qiagen/Cesium－Method
Most plasmids can be adequately prepped by kits containing DNA binding columns. These columns do not do a great job of separating plasmid DNA from con
CheckCap牵手GE开发新型肠道检测设备
随着技术发展，肠道检测已经成为预防肠胃部位疾病包括肿瘤在内的有效手段之一。然而，由于肠胃消化系统的特殊性，肠胃检测一直是最不受消费者“欢迎”的一种检测手段。因此，许多医疗器械生产者都在开发更简易的检测手段。最近，著名的医学诊断公司Check-Cap公司宣布将和医疗器械巨头GE公司合作开发、生产一
Checkline硬度计使用注意事项
试验力2.94N0.3Kgf、4.9N0.5Kgf、16.80N1Kgf、19.6N2.0Kgf、29.4N3.0Kgf、49.0N5.0Kgf转换标尺 洛氏、表面洛氏、布氏zui小测量单位 0.062μm总放大倍数100×（观察）200×（测量）总放大倍数数据输出 内置打印机和RS-232接口加荷
Influence－of－Ras－and－Rho－proteins－on－G1－to－S－Transition
The cell cycle transition from G1 to S phase is a key regulatory point in the cell cycle. This transition is regulated by the checkpoint kinase cdk2 t
Alternative－Complement－Pathway
The complement system of plasma proteins is an important part of the immune system that forms a cascade of factors that lyses foreign cells. There are