Browsing Biochemistry and Molecular Biology by Title
Now showing items 61-80 of 82
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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 ... -
Racial difference in Acylation Stimulating Protein (ASP) correlates to triglyceride in non-obese and obese African American and Caucasian women
(East Carolina University, 2009-04-17)Background: Acylation Stimulating Protein (ASP) has been shown to influence adipose tissue triglyceride (TG) storage. The aim was to examine ethnic differences in ASP and leptin levels in relation to lipid profiles and ... -
Regulation of lipoprotein lipase mRNA content in 3T3-L1 cells by tumour necrosis factor.
(East Carolina University, 1988-02-01)Tumour necrosis factor (TNF) was previously shown to suppress lipoprotein lipase (LPL) synthesis and activity in 3T3-L1 adipocytes. The present study examined the effect ofTNF on amounts ofmRNA for LPL in 3T3-Ll cells. ... -
Regulation of Transglutaminase 2 structure and function by Ca²⁺ and [alpha]-synuclein
(East Carolina University, 2016-07-14)Transglutaminase 2 (TG2) catalyzes the Ca2+-dependent transamidation of protein substrates between glutamine and lysine residues by formation of an N[epsilon]-([gamma]-L-glutamyl)-L-lysine isopeptide bond. The Ca2+-dependent ... -
Relationship of N-glycans to Neuronal Dysfunction
(East Carolina University, 2019-06-07)N-glycosylation is important in regulating protein activity and serves several vital roles contributing to protein folding, protein assembly, stability, and interactions. Changes in branching of N-glycans are linked to ... -
Resolving the Role of POU1F1 in Human Growth Hormone Locus Activation
(East Carolina University, 2012)The human growth hormone gene ( hGH-N) is regulated by a distal locus control region (LCR) composed of five deoxyribonuclease I hypersensitive sites (HSs). The region encompassing HSI and HSII contains the predominant ... -
Retinoids Potentiate Clinically Relevant Cellular Responses through RARα/RXR Nuclear Receptor Synergism in Cutaneous T Cell Lymphoma
(East Carolina University, 2015-12-15)The heterogeneity of cutaneous T cell lymphoma (CTCL) has stifled treatment options and hindered cure development. Despite the heterogeneous nature of CTCLs, a hallmark of all variants is malignant T cell infiltration of ... -
The RXR-alpha C-terminus T462 is a NMR sensor for coactivator peptide binding
(East Carolina University, 2008-02-22)The C-terminal activation function-2 (AF-2) helix plays a crucial role in retinoid X receptor alpha (RXRα)-mediated gene expression. Here, we report a nuclear magnetic resonance (NMR) study of the RXRα ligand-binding domain ... -
Selective Recruitment of Germ Cell mRNAs by eIF4 Factors
(East Carolina University, 1/13/16)During germ line development critical steps in the proliferation and differentiation of stem cells into oocytes and sperm are regulated by mRNA translational control. This regulation changes the subset of proteins being ... -
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 ... -
The C-terminus of Troponin T Modulates Calcium Regulation of Actin-Myosin Interactions
(East Carolina University, 2019-05-02)The highly conserved terminal fourteen C-terminal residues of troponin T play a novel role in the regulation of striated muscle contraction. Elimination of the terminal fourteen residues of the C-terminal region of troponin ... -
THE DISTINCT ROLES OF TWO eIF4E ISOFORMS AND THEIR COGNATE 4EIPS IN THE GERMLINE OF C. elegans
(East Carolina University, 8/5/2020)Biological information becomes functional at the step of mRNA translation when the protein product is synthesized. Translational regulation of mRNAs is critically important for proper modulation of gene expression in germ ... -
The Influence of Diet-Induced Obesity and N-3 Fatty Acids on the Cardiac Mitochondrial Phospholipidome and Respiratory Activity
(East Carolina University, 2017-08-16)Cardiac mitochondrial phospholipids, notably cardiolipin (CL), regulate inner mitochondrial membrane (IMM) organization and protein function, particularly the enzymes associated with respiration. In a range of metabolic ... -
THE ROLE OF N6-METHYLADENOSINE IN HYPOXIA AND CELLULAR TRANSFORMATION
(East Carolina University, 2017-11-29)Cancer is a prevalent disease that affects millions of people each year across the globe. In an effort to find therapies to the many types of cancers, regulation of protein expression through transcription and translation ... -
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 ... -
Troponin-tropomyosin: an allosteric switch or a steric blocker?
(East Carolina University, 2002-08)The interaction of myosin subfragment 1 (S1) with actin-tropomyosin-troponin (regulated actin) is highly nucleotide dependent. The binding of S1 or S1-ADP (but not S1-ATP nor N,N - -phenylenedimaleimide-modified S1-ATP) ... -
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 ...