POU2F1 (Oct-1) Differently Autoregulates the Alternative Promoters of Its Own Gene by Binding to Different Regulatory Sites

2021 ◽  
Vol 55 (6) ◽  
pp. 854-862
Author(s):  
E. V. Pankratova ◽  
T. N. Portseva ◽  
A. A. Makarova ◽  
B. M. Lyanova ◽  
S. G. Georgieva ◽  
...  
Keyword(s):  
Alternative Promoters ◽  
Regulatory Sites

COMPARATIVE STUDY FOR GENERIC DRUG APPROVAL PROCESS AND THEIR REGISTRATION AS PER CTD IN EUROPE, USA AND BRAZIL

2016 ◽  
Vol 4 (2) ◽  
pp. 1-9
Author(s):  
Lincy Joseph ◽  
Mathew George ◽  
Kalpesh K Malaviya ◽  
Kalpesh K Malaviya ◽  
Bincy K Chacko ◽  
...  
Keyword(s):  
Generic Drug ◽  
Drug Approval ◽  
Evaluation Agency ◽  
Approval Process ◽  
Registration Process ◽  
Regulatory Guidelines ◽  
Food Drug Administration ◽  
Government Websites ◽  
Drug Approval Process ◽  
Regulatory Sites

This aims to compare the generic drug approval and registration process in the regulatory market of Europe, USA andBrazil. Based on the information collected from various sources such as regulatory sites, Government websites,discussion with regulatory agent, interviewing pharma professionals and literature survey from various journals, aclear picture on the generic drug approval and registration process of each country was drawn. The differentauthorities’ viz. European Medicines Evaluation Agency (EMEA) of Europe, Food Drug Administration (FDA) ofUSA and National Health Surveillance Agency (ANVISA) of Brazil carried out the generic drug approval andregistration process in the respective countries. After analysing the various requirements for the generic drug approvalin the above stated countries, it was concluded that the regulatory guidelines of Europe and Brazil was not welldefined. But FDA gives very much well defined requirements. 

scholarly journals Binding of an X-Specific Condensin Correlates with a Reduction in Active Histone Modifications at Gene Regulatory Elements

Genetics ◽  
2019 ◽  
Vol 212 (3) ◽  
pp. 729-742 ◽  
Author(s):  
Lena Annika Street ◽  
Ana Karina Morao ◽  
Lara Heermans Winterkorn ◽  
Chen-Yu Jiao ◽  
Sarah Elizabeth Albritton ◽  
...  
Keyword(s):  
Gene Expression ◽  
Histone Modifications ◽  
Chromatin Immunoprecipitation ◽  
Protein Complexes ◽  
Regulatory Elements ◽  
Evolutionarily Conserved ◽  
Chromatin Immunoprecipitation Sequencing ◽  
Gene Regulatory Elements ◽  
Gene Regulatory ◽  
Regulatory Sites

Condensins are evolutionarily conserved protein complexes that are required for chromosome segregation during cell division and genome organization during interphase. In Caenorhabditis elegans, a specialized condensin, which forms the core of the dosage compensation complex (DCC), binds to and represses X chromosome transcription. Here, we analyzed DCC localization and the effect of DCC depletion on histone modifications, transcription factor binding, and gene expression using chromatin immunoprecipitation sequencing and mRNA sequencing. Across the X, the DCC accumulates at accessible gene regulatory sites in active chromatin and not heterochromatin. The DCC is required for reducing the levels of activating histone modifications, including H3K4me3 and H3K27ac, but not repressive modification H3K9me3. In X-to-autosome fusion chromosomes, DCC spreading into the autosomal sequences locally reduces gene expression, thus establishing a direct link between DCC binding and repression. Together, our results indicate that DCC-mediated transcription repression is associated with a reduction in the activity of X chromosomal gene regulatory elements.

Protein phosphatase 2A potentiates activity of promoters containing AP-1-binding elements

1993 ◽  
Vol 13 (4) ◽  
pp. 2104-2112
Author(s):  
A S Alberts ◽  
T Deng ◽  
A Lin ◽  
J L Meinkoth ◽  
A Schönthal ◽  
...  
Keyword(s):  
Gene Expression ◽  
Reporter Gene ◽  
Protein Phosphatase ◽  
Signal Transduction Pathways ◽  
Marker Genes ◽  
Direct Mechanism ◽  
Phosphatase 2A ◽  
Beta Galactosidase ◽  
Regulatory Sites

The involvement of serine/threonine protein phosphatases in signaling pathways which modulate the activity of the transcription factor AP-1 was examined. Purified protein phosphatase types 1 (PP1) and 2A (PP2A) were microinjected into cell lines containing stably transfected lacZ marker genes under the control of an enhancer recognized by AP-1. Microinjection of PP2A potentiated serum-stimulated beta-galactosidase expression from the AP-1-regulated promoter. Similarly, transient expression of the PP2A catalytic subunit with c-Jun resulted in a synergistic transactivation of an AP-1-regulated reporter gene. PP2A, but not PP1, potentiated serum-induced c-Jun expression, which has been previously shown to be autoregulated by AP-1 itself. Consistent with these results, PP2A dephosphorylated c-Jun on negative regulatory sites in vitro, suggesting one possible direct mechanism for the effects of PP2A on AP-1 activity. Microinjection of PP2A had no effect on cyclic AMP (cAMP)-induced expression of a reporter gene containing a cAMP-regulated promoter, while PP1 injection abolished cAMP-induced gene expression. Taken together, these results suggest a specific role for PP2A in signal transduction pathways that regulate AP-1 activity and c-Jun expression.

Developmentally regulated use of alternative promoters creates a novel platelet-derived growth factor receptor transcript in mouse teratocarcinoma and embryonic stem cells

1989 ◽  
Vol 9 (10) ◽  
pp. 4563-4567
Author(s):  
T H Vu ◽  
G R Martin ◽  
P Lee ◽  
D Mark ◽  
A Wang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Embryonic Stem Cells ◽  
Growth Factor ◽  
Short Form ◽  
Embryonic Stem ◽  
Growth Factor Receptor ◽  
Extracellular Domain ◽  
Platelet Derived Growth Factor ◽  
Alternative Promoters

Embryonal carcinoma and embryonic stem cells expressed a novel form of platelet-derived growth factor receptor mRNA which was approximately 1,100 base pairs shorter than the 5.3-kilobase (kb) transcript expressed in fibroblasts and other cell types. The 4.2-kb stem cell transcript was initiated within the genomic region immediately upstream of exon 6 of the 5.3-kb transcript and therefore lacked the first five exons, which encode much of the extracellular domain of the receptor expressed in fibroblasts. In stem cells, the short form was predominant, although both forms were present at low levels. Following differentiation in vitro, expression levels of the long form increased dramatically. These findings suggest that during early embryogenesis, a stem cell-specific promoter is used in a stage- and cell type-specific manner to express a form of the platelet-derived growth factor receptor that lacks much of the extracellular domain and may function independently of ligand.

scholarly journals Alternative Promoters Regulate Transcription of the Mouse GATA-2 Gene

1998 ◽  
Vol 273 (6) ◽  
pp. 3625-3634 ◽  
Author(s):  
Naoko Minegishi ◽  
Jun Ohta ◽  
Naruyoshi Suwabe ◽  
Hiromitu Nakauchi ◽  
Hajime Ishihara ◽  
...  
Keyword(s):  
Alternative Promoters
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