Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 65 for “"14-3-3"”.
-
Protein kinases that phosphorylate 14-3-3 isoforms
14 -3 -3 is an abundant, predominantly phospho-binding protein, intimately involved in the regulation of many diverse signal transduction events including cell cycle regulation, nucleo-cytoplasmic targeting of essential transcription factors and regulation of catecholamine synthesis. The 14 -3 -3 …
-
Die Rolle der 14-3-3-Proteine beim Vorwärtstransport von Kaliumkanälen
… zum ER zurückgeführt, während zytosolische 14-3-3-Proteine am Vorwärtstranport zur Plasmamembran beteiligt sind. Im Verlauf dieser Arbeit konnte gezeigt werden, dass 14-3-3-Proteine nicht nur spezifisch Kir6.2-Reporterproteine binden können, sondern dass diese Proteine am Transport des …
-
Regulation of human protein kinases and phosphatases by 14-3-3
… and its paralogues FAM122B and FAM122C are 14-3-3-binding phosphoproteins. The binding of 14-3-3 to FAM122A is mediated by phosphorylation of Ser37 and Ser62; the latter being a site that is phosphorylated in response to cAMP-elevating agents. Binding of 14-3-3 does not affect the …
-
Regulation of Mammary Gland Development and Tumorigenesis By 14-3-3 Zeta
… during cancer initiation and progression. 14-3-3z is overexpressed in more than 40% of breast cancers and is associated with poor patient prognosis. Therefore, the function of 14-3-3z in cancer and normal mammary gland development was investigated utilizing multiple <em>in vivo</em> and …
-
Untersuchungen zur dynamischen Regulation der Interaktion von RGS7 mit dem Adapterprotein 14-3-3
… Eine entscheidende Rolle hierbei spielt 14-3-3, das mit RGS7 phosphorylierungsabhängig interagiert. Für die Promotionsarbeit ergab sich daraus nun die Frage, wann RGS7 an 14-3-3 gebunden ist und welche Mediatoren die Bindung beeinflussen? Von besonderem Interesse war der vermehrt im …
-
A Regulatory Role for 14-3-3 Proteins in the Starch Biosynthetic Pathway of Zea mays
… A class of eukaryotic proteins called “14-3-3” dimerize and interact with phosphorylated clients to regulate enzymatic activity, localization and protein interactions. A series of bioinformatic and biochemical techniques identified GF14-6 as the only detectable 14-3-3 isoform in maize …
-
Purification of protein phosphatases and 14-3-3-binding proteins and their regulation by the cAMP–PKA pathway
… creates binding sites for proteins such as 14-3-3s, which have been shown to dock onto dually-phosphorylated serine/threonine residues on target proteins. In chapter 4, I looked at the regulation of 14-3-3-binding proteins when the cAMP–PKA signalling pathway was activated. Again, I used …
-
14-3-3 Zeta Overexpression Serves As A Novel Molecular Switch Turning Tgf-Beta From Tumor Suppressor to Tumor Promoter
… elusive. Here we identify that overexpression of 14-3-3ζ inhibits TGF-β’s cell cytostatic program through destabilizing p53 in non-transformed human mammary epithelial cells. Mechanistically, we found that 14-3-3ζ overexpression leads to 14-3-3σ downregulation, thereby activates PI3K/Akt signaling …
-
Crosstalk of protein phosphorylation and lysine acetylation on 14-3-3 proteins and their applications in brassinosteroid signaling and photosynthesis
… acetylation occurred to an Arabidopsis protein, 14-3-3ω. 14-3-3ω is a member of the 14-3-3 family of proteins that have been widely found in plants. 14-3-3s function mainly as phosphoserine/phosphothreonine-binding proteins that can affect the enzymatic activity, subcellular localization or …
-
Design of Peptide Ligands for 14-3-3ε, and Exploring the Role of Residue Types in Ligand Recognition by 14-3-3 Proteins
The 14-3-3 family of proteins are implicated in various malignancies. In cutaneous squamous cell carcinoma (cSCC), overexpression of the 14-3-3ε isoform is associated with suppression of apoptosis. Like 14-3-3ε, the protein phosphatase cell division cycle 25 A (CDC25A) is over expressed and …
-
Determining the effects of phosphorylation on AFAP-110 function
… revealed that AFAP-110 contains twelve potential 14-3-3 binding sequences. 14-3-3 proteins are a family of small acidic adaptor proteins of dimeric nature that act as molecular scaffolds and/or allosteric regulators in a number of cellular pathways. We have been interested to determine whether …
-
Molecular mechanisms of acquired gemcitabine resistance in pancreatic cancer
… to the parental cell line. I found that 14-3-3σ is up-regulated in the drug resistant cell line due to demethylation in its first exon, and the up-regulation of 14-3-3σ gene expression, in turn, contributes to gemcitabine resistance. Intriguingly, I found that demethylation of the 14-3-3σ …
-
Proteomic identification of putative biomarkers of neo-adjuvant chemotherapy resistance in luminal (ER+) breast cancer
… samples our research group recently identified 14-3-3 theta/tau, tBID and BcL-XL as putative biomarkers of response to neoadjuvant chemotherapy (Hodgkinson et al J Prot 2012, 75:1276-1283 and 75:2745-2752). Here we aimed to analyse further samples using the AbMA approach and to re-analyse the …
-
Methionine Sulfoxide Reductase and Ubiquitin-dependent Degradation of Alpha-synuclein
… was found to bind Ub and the molecular chaperone 14-3-3 proteins, leading to enhanced αSyn aggregation. Our lab recently reported on elevated dopamine and 14-3-3 levels in the methionine sulfoxide reductase A (MsrA) knockout mouse brain, as well as decreased αSyn degradation in MsrA KO yeast …
-
The identification of biomarkers of chemotherapy resistance in breast cancer using comparative proteomics
… in at least 2 datasets and these included 14-3-3 theta/tau, BID and Bcl-xL. Three datasets were generated using 2D-PAGE with MALDI-TOF/TOF MS, containing 132 unique DEPs. These included several isoforms of 14-3-3 proteins. The differential expression of 14-3-3, BID and Bcl-xL was confirmed …
-
Identification of new genes and pathways that act to delay C. elegans aging
… transcription factor DAF-16. We discovered that 14-3-3 proteins play a role in C. elegans lifespan determination. 14-3-3 proteins interact with the SIR-2.1 protein, and the 14-3-3 genes par-5 andftt-2 are required for the longevity mediated by sir-2. I1 overexpression, indicating that 14-3-3 …
-
Role of Phosphorylation In The Regulation of Prmt5
… with several SH2-domain containing proteins, 14-3-3 proteins and the FHA domain of MDC1. These novel phospho-dependent PRMT5 interactions suggest that crosstalk between kinases and arginine methyltransferases may play a pivotal role in modulating the different cellular functions of PRMT5.</p> …
-
Analysis of the role of Mdm38 in respiratory chain biogenesis
… Bereich ist auf tertiärer Ebene stark homolog zu 14-3-3 Proteinen und relevant für die Translationsregulation von Cox1 und Cob. Mdm38 kann daher als das erste 14-3-3-ähnliche mitochondriale Protein bezeichnet werden. Der identifizierte Bereich weist zudem Ähnlichkeit mit der vorhergesagten …
Page 1 of 4