Regulationofp27PhosphorylationduringCellCycleProgression
p27/Kip1 regulates the cell cycle by inhibiting the checkpoint kinase cdk2/cyclin E and blocking cell cycle progression through the G1-S transition. Cancer cells in some cases have reduced levels of p27, supporting the importance of p27 in cell cycle regulation. The activity of p27 is regulated by phosphorylation, synthesis and degradation. Phosphorylation of p27 at threonine-187 by cdk2 causes p27 to associate with ......阅读全文
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
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
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
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
Activation－of－Src－by－Proteintyrosine－phosphatase－alpha
Progression through the cell cycle is accompanied by activation of the proto-oncogene c-Src, a protein tyrosine kinase. Overexpression of Src leads to
Regulation－of－BAD－phosphorylation
The function of the pro-apoptotic molecule BAD is regulated by phosphorylation of three sites (ser 112,136 and 155). Phosphorylation at these sites re
Regulation－of－Splicing－through－Sam68
While transcriptional regulation is often viewed as the most prevalent way extracellular signals to regulate gene expression, post-transcriptional reg
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
METS－affect－on－Macrophage－Differentiation
Terminal differentiation of cells is often accompanied by repression of cellular proliferation, suggesting that there is a mechanism by which these ce
AKAP95－role－in－mitosis－and－chromosome－dynamics
The chromatin packaging of the genome is dynamic, changing with the cell cycle and with transcriptional regulation. During mitosis, chromatin is conde
E2F1－Destruction－Pathway
E2F-1 is a transcription factor that regulates the expression of genes involved in the cell cycle and that is involved in progression of the cell cycl
Cyclin－E－Destruction－Pathway
Cyclins are proteins that associate with cyclin-dependent protein kinases to regulate their activity and the progression of the cell cycle through spe
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
Protein－Kinase－A－at－the－Centrosome
Protein kinase A regulatory subunit RIIalpha (PKA-RIIa) is tightly bound to centrosomal structures during interphase through interaction with the A-ki
Double－Stranded－RNA－Induced－Gene－Expression
One defense against viral infection is provided by PKR, double-stranded RNA activated protein kinase. When PKR interacts with dsRNA found in cells dur
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
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
Phosphorylation－of－MEK1－by－cdk5/p35－down－regulates－the－MAP－kinase－pathway
Map kinases transduce responses to extracellular signals by a variety of routes, and communicate with other pathways through extensive crosstalk netwo
Biosynthesis－of－spermidine－and－spermine
The polyamines spermidine and spermine are expressed in a variety of tissues and are involved in the regulation of apoptosis, cellular proliferation,
Integrin－Signaling－Pathway
Integrins are cell surface receptors that interact with the extracellular matrix and mediate intracellular signals in response to the extracellular ma
PAK5基因编码功能及结构描述
这个基因编码的蛋白质是ser/thr蛋白激酶pak家族的成员。pak家族成员是rac/cdc42gtpase的效应者，参与调控细胞骨架动力学、增殖和细胞存活信号。该激酶包含一个cdc42/rac1相互作用结合（crib）基序，并且在gtp存在下已被证明与cdc42结合。这种激酶主要在大脑中表达。它能
PAK5基因突变因子与药物介绍
这个基因编码的蛋白质是ser/thr蛋白激酶pak家族的成员。pak家族成员是rac/cdc42gtpase的效应者，参与调控细胞骨架动力学、增殖和细胞存活信号。该激酶包含一个cdc42/rac1相互作用结合（crib）基序，并且在gtp存在下已被证明与cdc42结合。这种激酶主要在大脑中表达。它能
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
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
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
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.
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
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