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Articles 1 - 7 of 7
Full-Text Articles in Molecular Biology
Structure And Function Analysis Of Lin-14, A Temporal Regulator Of Postembryonic Developmental Events In Caenorhabditis Elegans, Yang Hong, Rosalind C. Lee, Victor Ambros
Structure And Function Analysis Of Lin-14, A Temporal Regulator Of Postembryonic Developmental Events In Caenorhabditis Elegans, Yang Hong, Rosalind C. Lee, Victor Ambros
Dartmouth Scholarship
During postembryonic development of Caenorhabditis elegans, the heterochronic gene lin-14 controls the timing of developmental events in diverse cell types. Three alternativelin-14 transcripts are predicted to encode isoforms of a novel nuclear protein that differ in their amino-terminal domains. In this paper, we report that the alternative amino-terminal domains of LIN-14 are dispensable and that a carboxy-terminal region within exons 9 to 13 is necessary and sufficient for in vivo LIN-14 function. A transgene capable of expressing only one of the three alternativelin-14 gene products rescues a lin-14 null mutation and is developmentally regulated by lin-4. …
A Defect In Interleukin 12-Induced Activation And Interferon Gamma Secretion Of Peripheral Natural Killer T Cells In Nonobese Diabetic Mice Suggests New Pathogenic Mechanisms For Insulin-Dependent Diabetes Mellitus., Marika Falcone, Brian Yeung, Lee Tucker, Enrique Rodriguez, Nora Sarvetnick
A Defect In Interleukin 12-Induced Activation And Interferon Gamma Secretion Of Peripheral Natural Killer T Cells In Nonobese Diabetic Mice Suggests New Pathogenic Mechanisms For Insulin-Dependent Diabetes Mellitus., Marika Falcone, Brian Yeung, Lee Tucker, Enrique Rodriguez, Nora Sarvetnick
Journal Articles: Regenerative Medicine
The function of natural killer T (NKT) cells in the immune system has yet to be determined. There is some evidence that their defect is associated with autoimmunity, but it is still unclear how they play a role in regulating the pathogenesis of T cell-mediated autoimmune diseases. It was originally proposed that NKT cells could control autoimmunity by shifting the cytokine profile of autoimmune T cells toward a protective T helper 2 cell (Th2) type. However, it is now clear that the major function of NKT cells in the immune system is not related to their interleukin (IL)-4 secretion. In …
Genome-Wide Bioinformatic And Molecular Analysis Of Introns In Saccharomyces Cerevisiae, Marc Spingola, Leslie Grate, David Haussler, Manuel Ares
Genome-Wide Bioinformatic And Molecular Analysis Of Introns In Saccharomyces Cerevisiae, Marc Spingola, Leslie Grate, David Haussler, Manuel Ares
Biology Department Faculty Works
Introns have typically been discovered in an ad hoc fashion: introns are found as a gene is characterized for other reasons. As complete eukaryotic genome sequences become available, better methods for predicting RNA processing signals in raw sequence will be necessary in order to discover genes and predict their expression. Here we present a catalog of 228 yeast introns, arrived at through a combination of bioinformatic and molecular analysis. Introns annotated in the Saccharomyces Genome Database (SGD) were evaluated, questionable introns were removed after failing a test for splicing in vivo, and known introns absent from the SGD annotation were …
Development Of 31p Nuclear Magnetic Resonance Methods For The Study Of Phosphate Metabolisms In E. Coli And B. Subtilis, Fabian M. Dayrit, Emilyn Q. Espiritu, Noreen Gonzalez, Nina Rosario L. Rojas, Jennifer T. Aguilan, Antonio M. Basilio, Edward T. Chainani, Enrico Cruz, Bernadette Matanguihan
Development Of 31p Nuclear Magnetic Resonance Methods For The Study Of Phosphate Metabolisms In E. Coli And B. Subtilis, Fabian M. Dayrit, Emilyn Q. Espiritu, Noreen Gonzalez, Nina Rosario L. Rojas, Jennifer T. Aguilan, Antonio M. Basilio, Edward T. Chainani, Enrico Cruz, Bernadette Matanguihan
Environmental Science Faculty Publications
31P NMR experiments were performed on Escherichia coli and Bacillus subtilis at various temperatures under aerobic and anaerobic conditions. The total soluble intracellular phosphate concentration was estimated to be 2 x 10^-17 mole/cell, while intracellular orthophosphate concentration was around 1 x 10^-17 mole/cell. Addition of glucose resulted in a general decrease in intracellular pH and was accompanied by the formation of sugar monophosphates. The concentrations of soluble intracellular phosphates, both inorganic and organic phosphates, were estimated by integration versus methylene diphosphonic acid (MDPA) standard. Although intracellular and extracellular orthophosphate could be observed, these appear to exchange rapidly on the NMR …
Transcriptional Regulation Of The Bmp2 Gene: Retinoic Acid Induction In F9 Embryonal Carcinoma Cells And Saccharomyces Cerevisiae, Loree C. Heller, Yong Li, Kevin L. Abrams, Melissa B. Rogers
Transcriptional Regulation Of The Bmp2 Gene: Retinoic Acid Induction In F9 Embryonal Carcinoma Cells And Saccharomyces Cerevisiae, Loree C. Heller, Yong Li, Kevin L. Abrams, Melissa B. Rogers
Bioelectrics Publications
Bmp2, a highly conserved member of the transforming growth factor-beta gene family, is crucial for normal development. Retinoic acid, combined with cAMP analogs, sharply induces the Bmp2 mRNA during the differentiation of F9 embryonal carcinoma cells into parietal endoderm. Retinoic acid (RA) also induces the Bmp2 gene in chick limb buds. Since normal Bmp2 expression may require an endogenous retinoid signal and aberrant Bmp2 expression may cause some aspects of RA-induced teratogenesis, we studied the mechanism underlying the induction of Bmp2. Measurements of the Bmp2 mRNA half-life and nuclear run-on assays …
Carmoviruses (Tombusviridae), Feng Qu, Thomas Jack Morris
Carmoviruses (Tombusviridae), Feng Qu, Thomas Jack Morris
School of Biological Sciences: Faculty Publications
Carmovirus is one of two officially recognized genera of Tombusviridae. Members of Tombusviridae all have icosahedral virions of about 30 nm in diameter with T = 3 symmetry that consists of 180 coat protein (CP) subunits of about 38- 43 kDa and a single-stranded (ss) RNA genome ranging in size from 4.0 to 4.7 kb. Carmoviruses share recognizable sequence similarity in both the polymerase and structural genes with members of the other genus, Tombusvirus. Sequence comparisons and phylogenetic analysis of these genes support the view that the genera are distinct but closely related. In addition, the genome organization of the …
Archaeal Aminoacyl-Trna Synthesis: Unique Determinants Of A Universal Genetic Code?, Michael Ibba, A. W. Curnow, J. Bono, P. A. Rosa, C. R. Woese, D. Söll
Archaeal Aminoacyl-Trna Synthesis: Unique Determinants Of A Universal Genetic Code?, Michael Ibba, A. W. Curnow, J. Bono, P. A. Rosa, C. R. Woese, D. Söll
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
No abstract provided.