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Legacy Theses & Dissertations (2009 - 2024)

Gene expression

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Bioinformatics Analysis Of The Transcriptomic Profiles Of Duchenne Muscular Dystrophy Patients / Narrative Competence And Cognitive Mapping As A Culturally Sustaining Pedagogy In The Education Of Emergent Bilinguals, Bianca Gonzalez May 2022

Bioinformatics Analysis Of The Transcriptomic Profiles Of Duchenne Muscular Dystrophy Patients / Narrative Competence And Cognitive Mapping As A Culturally Sustaining Pedagogy In The Education Of Emergent Bilinguals, Bianca Gonzalez

Legacy Theses & Dissertations (2009 - 2024)

Duchenne Muscular Dystrophy (DMD) is a muscle-wasting disease that primarily affects boys characterized by loss of the dystrophin gene. Dystrophin is necessary for proper muscle growth, muscles that lack dystrophin are more prone to damage. In this thesis, a bioinformatics approach was used to evaluate the transcriptomic profiles of two datasets obtained from DMD patients. The two datasets were analyzed separately, as well as combined to identify differentially expressed genes. The first dataset, GSE6011, has 23 DMD samples and 14 controls. The second, GSE38417, consists of 16 DMD samples and six controls. Differential gene expression of both datasets combined found …


Cis-Acting Super-Enhancer Lncrnas As Biomarkers To Early-Stage Breast Cancer, Ali Salman Ropri Apr 2022

Cis-Acting Super-Enhancer Lncrnas As Biomarkers To Early-Stage Breast Cancer, Ali Salman Ropri

Legacy Theses & Dissertations (2009 - 2024)

Abstract


Identification Of Ires Activity In Cellular Mrnas And Viral Rna Using A Circular Rna Construct, Priyanka Sehta Jan 2021

Identification Of Ires Activity In Cellular Mrnas And Viral Rna Using A Circular Rna Construct, Priyanka Sehta

Legacy Theses & Dissertations (2009 - 2024)

Translation initiation is a critical step in the process of protein synthesis. The canonical way of translation initiation involves ribosomes being recruited to the 7-methyl guanosine cap present at the 5’end of the untranslated region (5’ UTR) of the RNAs. However, viral RNAs and some cellular mRNAs lack this 5’ cap structure and thus deploy an alternate non-canonical translation initiation mechanism. In non-canonical translation initiation, ribosome recruitment is facilitated by the RNA secondary structures called Internal Ribosome Entry Site (IRES) present most often in the 5’ UTR. To measure IRES-mediated translation, the dual luciferase assay has been the gold standard. …


A Gene Expression Profile Associated With Successful Cns Axon Regeneration In Xenopus Laevis, Jamie L. Belrose Dec 2020

A Gene Expression Profile Associated With Successful Cns Axon Regeneration In Xenopus Laevis, Jamie L. Belrose

Legacy Theses & Dissertations (2009 - 2024)

Background: The South African claw-toed frog, Xenopus laevis, is uniquely suited for studying differences between regenerative and non-regenerative responses to CNS injury within the same organism, because some CNS neurons (e.g., retinal ganglion cells after optic nerve crush (ONC)) regenerate axons throughout life, whereas others (e.g., hindbrain neurons after spinal cord injury (SCI)) lose this capacity as tadpoles metamorphose into frogs. Tissues from these CNS regions (frog ONC eye, tadpole SCI hindbrain, frog SCI hindbrain) were used in a three-way RNA-seq study of axotomized CNS axons to identify potential core gene expression programs for successful CNS axon regeneration.


Group Ii Introns : Evolution, Structure And Function, Xiaolong Dong Jan 2020

Group Ii Introns : Evolution, Structure And Function, Xiaolong Dong

Legacy Theses & Dissertations (2009 - 2024)

Group II introns are mobile, self-splicing ribozymes found in bacteria, archaea and eukaryotic organelles. They are widely believed to be the progenitors of the eukaryotic spliceosomal introns and retroelements. Yet many structural and evolutionary aspects of group II introns remain elusive. Indeed, while group II introns are the putative forerunners of spliceosomal introns in eukaryotes, they are notably absent in the nuclear genomes and a large portion of prokaryotes. Furthermore, although the architecture of a post-catalytic group II intron holoenzyme containing both the RNA and the bound intron encoded protein (IEP) has been solved by cryo-electron microscopy (cryo-EM), the interactions …


A Novel Method For Studying Gene Regulatory Elements In Vivo Reveals Essential Roles For Intron Splicing In Neurofilament Gene Expression, Chen Wang Jan 2015

A Novel Method For Studying Gene Regulatory Elements In Vivo Reveals Essential Roles For Intron Splicing In Neurofilament Gene Expression, Chen Wang

Legacy Theses & Dissertations (2009 - 2024)

Axon outgrowth requires coordinated expression of critical cytoskeletal genes in response to extracellular cues. The spatial and temporal expression of these genes is regulated transcriptionally and posttranscriptionally. Such regulation is largely mediated through the activity of cis-regulatory elements within the cytoskeletal DNAs and RNAs, which recruit specific sets of trans-factors such as DNA- and RNA-binding proteins, as well as microRNAs. To identify the functionally active cis-elements, characterize their dynamically changing sets of trans-factors, and investigate the association between the two sets of regulators in the context of an intact developing nervous system, one needs to combine appropriate in vivo strategies …


Gld-1 Represses Its Puf Mrna Targets Prior To/At Initiation Of Translation In The C.Elegans Germline, Gautham Sarathy Jan 2012

Gld-1 Represses Its Puf Mrna Targets Prior To/At Initiation Of Translation In The C.Elegans Germline, Gautham Sarathy

Legacy Theses & Dissertations (2009 - 2024)

The C.elegans germline offers an ideal system to study posttranscriptional regulation of gene expression as it is a major mechanism through which the control over gene expression is achieved. GLD-1 (defective in GermLine Development) is a maxi-KH motif containing RNA binding protein that controls various aspects of germline development from decision over germcell proliferation vs. meiotic entry to the production of mature gametes suggesting that GLD-1 likely controls many mRNA targets.