NitrogendepedentregulationofRtg1andRtg3inTORpathway
Many key signaling molecules are conserved from yeast to man. mTOR is a protein kinase involved in nutrient and growth factor signaling in humans that has a yeast homolog with a similar role, TOR1. Like its human counterpart, yeast TOR1 is also inhibited by rapamycin. Signaling downstream of the TOR kinase pathways regulates the nuclear localization of several transcription factors in response to the carbon and nitro......阅读全文
EPO－Signaling－Pathway
Erythropoietin functions to increase the number of red blood cells. Thus, it has found utility as a drug for those needing to replenish erythrocytes f
AKT－Signaling－Pathway
Many cell-surface receptors induce production of second messengers like PIP3, phosphatidylinositol 3,4,5-trisphosphate, that convey signals to the cyt
MAPKinase－Signaling－Pathway
The ever evolving mitogen-activated protein kinase (MAP kinase) pathways consist of four major groupings and numerous related proteins which constitut
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
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
EGF－Signaling－Pathway
The epidermal growth factor (EGF) peptide induces cellular proliferation through the EGF receptor, which has a tyrosine kinase cytoplasmic domain, a s
PDGF－Signaling－Pathway
Platelet Derived Growth Factor (PDGF) plays a critical role in cellular proliferation and development. The biologically active form is a dimer formed
BCR－Signaling－Pathway
Significant progress has been made towards delineation of the intrinsic molecular processes that regulate B lymphocyte immune function. Recent observa
TPO－Signaling－Pathway
Thrombopoietin (TPO) binds to its receptor inducing aggregation and activation. TPO signals its growth regulating effects to the cell through several
ATM－Signaling－Pathway
The ataxia telangiectasia-mutated gene (ATM) encodes a protein kinase that acts as a tumor suppressor. ATM activation by ionizing radiation damage to
Erythrocyte－Differentiation－Pathway
Stem cells in the bone marrow produce a variety of hematopoietic cell types from common progenitor cells under the influence of cytokines and growth f
Reelin－Signaling－Pathway
Reelin is an extracellular protein secreted by neurons. Reeler mice with a defective Reelin gene exhibit neuronal abnormalities in development. Mice t
Insulin－Signaling－Pathway
The appropriate signaling through the insulin pathway is critical for the regulation of glucose levels and the avoidance of diabetes. Insulin forms a
Integrin－Signaling－Pathway
Integrins are cell surface receptors that interact with the extracellular matrix and mediate intracellular signals in response to the extracellular ma
CARM1－and－Regulation－of－the－Estrogen－Receptor
Several forms of post-translational modification regulate protein activities. Recently, protein methylation by CARM1 (coactivator-associated arginine
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
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
Role－of－nicotinic－acetylcholine－receptors－in－the－regulation－of－apoptosis
Nicotinic acetylcholine receptors are essential for neuromuscular signaling and are also expressed in non-neuronal tissues, where their function is le
Ghrelin:－Regulation－of－Food－Intake－and－Energy－Homeostasis
The somatotropic axis. The synthesis and release of growth hormone (GH) from the pituitary are controlled by the hypothalamic hormones GH-releasing ho
Signal－Dependent－Regulation－of－Myogenesis－by－Corepressor－MITR
The differentiation of muscle cells is regulated by many factors, including the MyoD/MEF2 family of transcription factors. The MyoD/MEF2 dimer binds t
Transcription－Regulation－by－Methyltransferase－of－CARM1
Several forms of post-translational modification regulate protein activities. Recently, protein methylation by CARM1 (coactivator-associated arginine
Skeletal－muscle－hypertrophy－is－regulated－via－AKT/mTOR－pathway
Skeletal muscle atrophies with disuse while with increased use and increased load skeletal muscle exhibits hypertrophy, with an increase in the size o
IL－6－signaling－pathway
Interleukin-6 (IL-6) is a cytokine that provokes a broad range of cellular and physiological responses. In addition to playing a role in inflammation
Melanocyte－Development－and－Pigmentation－Pathway
Studies with homozygous knockout mice have suggested that stem cell factor (SCF or KITLG), c-Kit, microphthalmia (Mitf), and B-cell CLL/lymphoma 2 (Bc
IL－17－Signaling－Pathway
Inflammation is a complex response involving many different cells and signaling molecules, including the secretion of the cytokine IL-17 by activated
IL－4－signaling－pathway
Interleukin 4 (IL-4) is a cytokine that can lead to development of Th2 cells. The 140 kD IL-4 Receptor (CD124) is found on many cell types, even those
TGF－beta－signaling－pathway
TGF-beta regulates growth and proliferation of cells, blocking growth of many cell types. The TGF-beta receptor includes type 1 and type 2 subunits th
Leloir－pathway－of－galactose－metabolism
Galactose is a hexose sugar found in the disaccharide lactose. Galactose has six carbons like glucose and differs from glucose only in the stereochemi
Phospholipase－C－Signaling－Pathway
Phospholipase C comes in multiple forms and plays a key role in the signal transduction process for many receptors. Its main function is to hydrolyze
Granzyme－A－mediated－Apoptosis－Pathway
One mechanism used by cytotoxic T cells to kill tumor cells and virus-infected cells is the release of perforin and granzyme proteins. Perforin protei