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Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Structure-Function Studies Of The Trypanosome Mitochondrial Replication Protein Polib, Raveen Armstrong
Structure-Function Studies Of The Trypanosome Mitochondrial Replication Protein Polib, Raveen Armstrong
Masters Theses
Trypanosoma brucei and related protists are distinguished from all other eukaryotes by an unusual mitochondrial genome known as kinetoplast DNA (kDNA) that is a catenated network composed of minicircles and maxicircles. Replication of this single nucleoid involves a release, replicate, and reattach mechanism for the thousands of catenated minicircles and requires at least three DNA polymerase (POLIB, POLIC and POLID) with similarity to E. coli DNA polymerase I. Like other proofreading replicative DNA polymerases, POLIB has both an annotated polymerase domain and an exonuclease domain. Predictive modelling of POLIB indicates that it has the canonical right hand …
Utilizing Fluorescence Microscopy To Characterize The Subcellular Distribution Of The Novel Protein Acheron, Varun Sheel
Utilizing Fluorescence Microscopy To Characterize The Subcellular Distribution Of The Novel Protein Acheron, Varun Sheel
Masters Theses
All cells carry the genetic machinery required to commit cell suicide; a process known as programmed cell death (PCD). While the ability to initiate PCD serves a number of useful purposes during development and homeostasis, misregulation of PCD is the underlying basis of most human diseases, including cancer, autoimmunity disorders and neurodegeneration. Using the tobacco hawkmoth Manduca sexta as a model organism, the Schwartz lab at UMass has demonstrated that PCD requires de novo gene expression and has cloned many death-associated genes. One of these genes encodes a novel protein that was named Acheron after one of the rivers of …
Hsp70 Phosphorylation: A Case Study Of Serine Residues 385 And 400, Sashrika Saini
Hsp70 Phosphorylation: A Case Study Of Serine Residues 385 And 400, Sashrika Saini
Masters Theses
Molecular chaperones play a key role in maintaining a healthy cellular proteome by performing protein quality control. Heat shock protein 70s (Hsp70s) are a diverse class of evolutionarily conserved chaperones that interact with short hydrophobic sequences presented in unfolded proteins, promoting productive folding, and preventing proteins from aggregation. Most of the extensive research on chaperone examines mechanism, substrate promiscuity, and engagement with many co-chaperones. Only recently were chaperones recognized to be frequent targets of post-translational modifications (PTMs). Despite the recent rise in PTMs identified, the impact of these modifications on chaperone function, whether singular or in concert with other modifications, …
Exploring Knockdown Phenotypes And Interactions Between Atad3 Proteins In Arabidopsis Thaliana, Eli S. Gordon
Exploring Knockdown Phenotypes And Interactions Between Atad3 Proteins In Arabidopsis Thaliana, Eli S. Gordon
Masters Theses
Mitochondria are required for a diverse array of cellular functions and processes. ATAD3 (ATPase family AAA domain containing protein 3) proteins are newly discovered mitochondrial membrane proteins in Arabidopsis thaliana. Homologous to ATAD3A in metazoans, Co-Immunoprecipitation/Mass spectrometry and genomic analysis identified a four ATAD3A homologues in A. thaliana. The four A. thaliana proteins are referred to as ATAD3A1 (At3g03060), ATAD3A2 (At5g16930), ATAD3B1 (At2g18330), and ATAD3B2 (At4g36580). Studies in metazoans indicate that ATAD3A localizes to Mitochondria-ER contact sites and is involved in a variety of processes required for proper mitochondrial function, but ATAD3A proteins are poorly defined in plants. …