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Multiple Translation Factor eIF4G (IFG-1) Isoforms are Required for the Apoptosome-Dependent Activation of Germ Cell Apoptosis
(East Carolina University, 2010)
Apoptosis is a naturally occurring process during animal development required for the programmed killing and removal of injured cells. Cellular insult induces a switch in translation that allows for the rapid synthesis ...
The Biochemical Characterization Of Neuronal K+ Channel N-Glycans And Their Role In Regulating K+ Channel Function
(East Carolina University, 2009)
The Kv3 and Kv1 subfamilies of voltage–gated K+ channels are critical components which contribute to action potential repolarization throughout the central nervous system. Here, it was shown that both absolutely conserved ...
Some Cardiomyopathy-Causing Troponin I Mutations Stabilize a Functional Intermediate Actin State
(East Carolina University, 2009-03-18)
We examined four cardiomyopathy-causing mutations of troponin I that appear to disturb function by altering the
distribution of thin filament states. The R193H (mouse) troponin I mutant had greater than normal actin-activated ...
Post-Transcriptional Regulation of mRNA Metabolism during Differentiation of 3T3-L1 Cells: Role of HuR
(East Carolina University, 2010)
Our studies address early control points in the differentiation process that are necessary for expression as well as the maintenance of the adipocyte phenotype. We have focused on the post-transcriptional regulation of ...
Tumour necrosis factor-alpha regulates expression of the CCAAT-enhancer-binding proteins (C/EBPs) alpha and beta and determines the occupation of the C/EBP site in the promoter of the insulin-responsive glucose-transporter gene in 3T3-L1 adipocytes.
(East Carolina University, 1999-03-15)
We have demonstrated previously that treatment of 3T3-L1 adipocytes with tumour necrosis factor-alpha (TNF) results in a rapid (4 h) and significant (75–80%) reduction in the rate of transcription of the GLUT4 gene. Control ...
The Distribution Of Regulated Actomyosin States Is Central To Cardiac Muscle Regulation And Disturbance Of This Distribution Leads To Congenital Cardiomyopathies
(East Carolina University, 2009)
Hypertrophic and restrictive cardiomyopathies are congenital cardiac diseases that have an incidence of over one in five hundred and may lead to sudden cardiac death. One of the main impediments to directed treatment is ...
Tropomyosin Dynamics in Cardiac Thin Filaments: A Multisite Förster Resonance Energy Transfer and Anisotropy Study
(East Carolina University, 2008-06)
Cryoelectron microscopy studies have identified distinct locations of tropomyosin (Tm) within the Ca21-free, Ca21-saturated, and myosin-S1-saturated states of the thin filament. On the other hand, steady-state Förster ...
Localization and Characterization of a 7.3-kDa Region of Caldesmon Which Reversibly Inhibits Actomyosin ATPase Activity
(East Carolina University, 1992-08-15)
Cleavage of caldesmon with chymotrypsin yields a series of fragments which bind both calmodulin and actin and inhibit the binding of myosin subfragments to actin and the subsequent stimulation of ATPase activity. Several ...
Fesselin and caldesmon: natively unfolded proteins in smooth muscle regulation
(East Carolina University, 2010)
Dysregulation of smooth muscle contraction is linked to diseases such as atherosclerosis, asthma, hypertension, urinary incontinence, premature birth and others. The goal of this project is to contribute to our understanding ...
Fish oil disrupts B cell plasma membrane lateral organization and immunological synapse formation
(East Carolina University, 2012)
Fish oil has immunosuppressive properties that could provide treatment for numerous inflammatory and autoimmune disorders. The primary bioactive components of fish oil, which are the n-3 polyunsaturated fatty acids (PUFAs) ...