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David Warren PryceBangor University · School of Medical Sciences
David Warren Pryce
Doctor of Philosophy
About
12
Publications
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Introduction
The human immune system employs an immunosurveillance process to eliminate or inhibit cancer progression. Unfortunately however, cancers can evade this process. How cancer evolves into an “immunoedited” form that can escape immunosurveilance, is poorly understood. Recent research has shown proteins targeted in some autoimmune diseases are linked to increased or decreased cancer incidence. My lab is characterising ‘autoantigens’ for potential roles in immunosurveilance and/or immunoediting.
Additional affiliations
Education
September 2000 - September 2004
September 1981 - September 1982
Publications
Publications (12)
The conserved nucleic acid binding protein Translin contributes to numerous facets of mammalian biology and genetic diseases. It was first identified as a binder of cancer-associated chromosomal translocation breakpoint junctions leading to the suggestion that it was involved in genetic recombination. With a paralogous partner protein, Trax, Transl...
DNA replication stress has been implicated in the etiology of genetic diseases, including cancers. It has been proposed that genomic sites that inhibit or slow DNA replication fork progression possess recombination hotspot activity and can form potential fragile sites. Here we used the fission yeast, Schizosaccharomyces pombe, to demonstrate that h...
Meiotic recombination predominantly occurs at genomic loci referred to as recombination hotspots. The fission yeast, Schizosaccharomyces pombe, has proved to be an excellent model organism in which to study details of the molecular basis of meiotic recombination hotspot activation. S. pombe has a number of different classes of meiotic hotspots, ind...
Translin is a conserved protein which associates with the breakpoint junctions of chromosomal translocations linked with the development of some human cancers. It binds to both DNA and RNA and has been implicated in mRNA metabolism and regulation of genome stability. It has a binding partner, translin-associated protein X (TRAX), levels of which ar...
Most organisms form protein-rich, linear, ladder-like structures associated with chromosomes during early meiosis, the synaptonemal complex. In Schizosaccharomyces pombe, linear elements (LinEs) are thread-like, proteinacious chromosome-associated structures that form during early meiosis. LinEs are related to axial elements, the synaptonemal compl...
Homologous chromosome pairing is a central feature of meiosis I, contributing to the correct segregation of chromosomes during meiosis. The fission yeast, Schizosaccharomyces pombe, has been widely used to study meiotic chromosome dynamics, partly because studies in this yeast are simplified due to the lack of post-pairing synaptic structures. Chro...
Cohesins are a group of proteins that function to mediate correct chromosome segregation, DNA repair and meiotic recombination. This report presents the amino acid sequence for the Schizosaccharomyces pombe cohesin Psc3 based on the translation of the cDNA sequence, showing that the protein is smaller than previously predicted. Interestingly, compa...
Certain genomic loci, termed hot spots, are predisposed to undergo genetic recombination during meiosis at higher levels relative to the rest of the genome. The factors that specify hot-spot potential are not well understood. The M26 hot spot of Schizosaccharomyces pombe is dependent on certain trans activators and a specific nucleotide sequence, w...
The fission yeast Schizosaccharomyces pombe does not form synaptonemal complexes (SCs) in meiotic prophase nuclei. Instead, thin threads, the so-called linear elements (LEs), are observed at the corresponding stages by electron microscopy. Here, we demonstrate that S. pombe Rec10 is a protein related to the Saccharomyces cerevisiae SC protein Red1...
The mechanisms regulating the function of recombination during meiosis are heavily influenced by the processes which control recombination initiation, including homologue pairing and activation of specific hot spot chromatin. We have identified Rec10 as a central regulator/component of the proteinaceous structures known as linear elements (LEs), wh...
Aqueous extracts of Schistosoma mansoni eggs have been shown to have fibrinolytic activity inhibitable by a serine protease inhibitor. Fibrinolytic activity was not present in extracts of either adult worms or cercariae. A 27 kDa enzyme that was proteolytically active on fibrinogen in zymography and that degraded fibrinogen in a pattern similar to...