SignalDependentRegulationofMyogenesisbyCorepressorMITR
The differentiation of muscle cells is regulated by many factors, including the MyoD/MEF2 family of transcription factors. The MyoD/MEF2 dimer binds to promoters to activate genes involved in muscle cell differentiation. One of the factors that regulates the role of MyoD/MEF2 in myogenesis is the protein MEF2-interacting transcription repressor (MITR), a transcriptional repressor. When MITR is bound to MEF2, myogenes......阅读全文
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
Roles－of－arrestindependent－Recruitment－of－Src－Kinases－in－GPCR－Signaling
The binding of ?-arrestins to agonist-occupied GPCRs coincides with the recruitment of Src family tyrosine kinases, including c-Src, Hck and c-Fgr (Sr
Sci－Signal：导致衰老有关疾病的分子开关
马萨诸塞州总医院（MGH）领导完成的一项调查研究已经确定了一种分子开关，其控制肌肉萎缩、阿尔茨海默氏病等疾病相关的炎症。 相关研究刊登在Science Signaling杂志上，在报告中，研究小组在衰老相关疾病的几种动物模型中，发现调节蛋白SIRT1的信号分子即一氧化氮对于诱导炎症和细胞死亡是
The－CoStimulatory－Signal－During－Tcell－Activation
For a T cell to be activated by a specific antigen, the T cell receptor must recognize complexes of MHCI with the antigen on the surface of an antigen
与肺癌相关的MMP2基因编码功能描述
该基因是基质金属蛋白酶（MMP）基因家族的成员，是锌依赖性酶，能够切割细胞外基质的成分和参与信号转导的分子。该基因编码的蛋白是一种胶原酶A，IV型胶原酶，在其催化位点包含三个纤维连接蛋白II型重复序列，允许变性的IV型和V型胶原和弹性蛋白结合。与大多数MMP家族成员不同，这种蛋白的活化可以发生在细胞
MMP2基因突变与药物因子介绍
该基因是基质金属蛋白酶（MMP）基因家族的成员，是锌依赖性酶，能够切割细胞外基质的成分和参与信号转导的分子。该基因编码的蛋白是一种胶原酶A，IV型胶原酶，在其催化位点包含三个纤维连接蛋白II型重复序列，允许变性的IV型和V型胶原和弹性蛋白结合。与大多数MMP家族成员不同，这种蛋白的活化可以发生在细胞
MMP2基因编码功能及结构描述
该基因是基质金属蛋白酶（MMP）基因家族的成员，是锌依赖性酶，能够切割细胞外基质的成分和参与信号转导的分子。该基因编码的蛋白是一种胶原酶A，IV型胶原酶，在其催化位点包含三个纤维连接蛋白II型重复序列，允许变性的IV型和V型胶原和弹性蛋白结合。与大多数MMP家族成员不同，这种蛋白的活化可以发生在细胞
与乳腺癌相关的MMP2基因编码功能描述
该基因是基质金属蛋白酶（MMP）基因家族的成员，是锌依赖性酶，能够切割细胞外基质的成分和参与信号转导的分子。该基因编码的蛋白是一种胶原酶A，IV型胶原酶，在其催化位点包含三个纤维连接蛋白II型重复序列，允许变性的IV型和V型胶原和弹性蛋白结合。与大多数MMP家族成员不同，这种蛋白的活化可以发生在细胞
Downregulated－of－MTA3－in－ERnegative－Breast－Tumors
Approximately 30% of breast carcinomas lack ER expression. Presumably, these breast cancers become estrogen independent through genetic alterations th
HDAC7基因编码功能及结构描述
组蛋白在转录调控、细胞周期进展和发育事件中起着关键作用。组蛋白乙酰化/去乙酰化改变染色体结构并影响转录因子对dna的获取。该基因编码的蛋白质与组蛋白脱乙酰酶家族成员具有序列同源性。该基因与小鼠hdac7基因同源，其蛋白通过转录辅压子smrt介导抑制作用。另外，已经发现该基因编码不同亚型的剪接转录变体
HDAC7基因编码功能及结构描述
组蛋白在转录调控、细胞周期进展和发育事件中起着关键作用。组蛋白乙酰化/去乙酰化改变染色体结构并影响转录因子对dna的获取。该基因编码的蛋白质与组蛋白脱乙酰酶家族成员具有序列同源性。该基因与小鼠hdac7基因同源，其蛋白通过转录辅压子smrt介导抑制作用。另外，已经发现该基因编码不同亚型的剪接转录变体
HDAC7基因突变与药物因子介绍
组蛋白在转录调控、细胞周期进展和发育事件中起着关键作用。组蛋白乙酰化/去乙酰化改变染色体结构并影响转录因子对dna的获取。该基因编码的蛋白质与组蛋白脱乙酰酶家族成员具有序列同源性。该基因与小鼠hdac7基因同源，其蛋白通过转录辅压子smrt介导抑制作用。另外，已经发现该基因编码不同亚型的剪接转录变体
Overview－of－telomerase－RNA－component－gene－hTerc－Transcriptional－Regulation
Telomerase is an enzyme which replicates the terminal sequences of eukaryotic chromosomes, namely the telomeres. Cells which have an unlimited replica
Regulation－of－MAP－Kinase－Pathways－Through－Dual－Specificity－Phosphatases
Mitogen-activated protein (MAP) kinases are important players in signal transduction pathways activated by a range of stimuli and mediate a number of
Mechanism－of－Gene－Regulation－by－Peroxisome－Proliferators－via－PPARa(alpha)
The most recognized mechanism by which peroxisome proliferators regulated gene expresssion is through a PPAR/RXR heterodimeric complex binding to a pe
Multistep－Regulation－of－Transcription－by－Pitx2
Many transcription factors play essential roles in normal development by determining the proliferation and differentiation of cells. The coordinated t
Ceramide－Signaling－Pathway
Over 1,000 papers and reviews have been written about the role of ceramide in the production of programmed cell death or apoptosis. Ceramide is a sphi
MicroRNA－Expression－Profiling－by－Bead－Array－4
Bead-array-based microRNA detection technology, including the bio-statistic analysis, is currently not well established or widely used and we have app
Angiotensin－II－mediated－activation－of－JNK－Pathway－via－Pyk2－dependent
Ang II binding to AT1-R triggers the activation of Ca2+ signaling and PKC. The signal is then transmitted to the Pyk2 and further to the small G prote
Sci－Signal：科学家揭示肿瘤为什么会耐药
虽然癌症治疗药物如ErbB抑制剂在治疗肺癌，乳腺癌，结肠癌和其他类型癌症患者中已经表现出了极大的成功。然而，仍有其他许多患者不回应ErbB抑制剂，即患者出现了药物耐药，即使是那些肿瘤复发患者也会出现耐药现象。 近日，来自麻省理工学院的一项新的研究揭示了这个耐药现象出现的一种机制，是因为一种
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
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
Neuroregulin－receptor－degredation－protein1－Controls－ErbB3－receptor
The neuregulins comprise a subfamily of at least four epidermal growth factor (EGF)-like growth factors that influence a variety of cellular events, i
Actions－of－Nitric－Oxide－in－the－Heart
Nitric oxide (NO) has a number of important physiological actions in the cardiovascular system. In the heart, NO plays role in keeping the vessels pat
Sci－Signal：癌细胞产生耐药性的精细路径
近日，刊登在国际杂志Science Signaling上的两篇研究论文中，来自美国杜克癌症研究所（Duke Cancer Institute）的研究人员通过研究揭示了促进特定癌细胞对致死性疗法产生耐药性的分子机制。 文章中，通过绘制黑色素瘤、乳腺癌及骨髓纤维化癌细胞对特定药物产生耐药性的关键步
Growing－cells
No two cell lines behave exactly the same, so you must learn the peculiarities, or personality, of each of the cell lines with which you work. Irrespe
IL12－and－Stat4－Dependent－Signaling－Pathway－in－Th1－Development
Interleukin-12 (IL-12) promotes cell-mediated immunity by inducing Th1 cell differentiation and activation of both T cells and NK cells. Dendritic cel
Sci.－Signal：研究人员绘制癌症产生耐药的信号路径
杜克大学癌症研究所一研究小组领导的研究已确定促进某些癌细胞产生耐药性的关键事件。 通过映射黑色素瘤，乳腺癌和血液癌症（骨髓纤维化）获得抗药性所使用的具体信号传导通路，研究人员现在有好的癌症治疗靶标，阻断这些途径可保持当前癌症疗法更加有效。 该研究结果发表在Science Signaling杂
英国SIGNAL气体分析仪同其它分析仪的比较
Application Notes 应用注解 Disadvantages of Ecophysics N
T－Cytotoxic－Cell－Surface－Molecules
Cytotoxic T cells are a key part of the cellular immune response, killing cells that display foreign antigen on their surface, primarily virus-infecte