Index Catalog // ScholarsArchive@OSU

Protein-protein interactions in the bacteriophage T4 dNTP synthetase complex

Creator:: Shen, Rongkun
Abstract:: The enzymes of dNTP synthesis in T4 infection associate to form a multienzyme complex, the T4 dNTP synthetase complex, facilitating the flow of metabolites en route to dNTPs, and their subsequent flow into DNA. Study of protein-protein interactions helps one to understand how the enzymes in the complex are organized...
Resource Type:: Dissertation

Mutagenic mechanisms associated with DNA cytosine methylation, DNA base sequence context and DNA precursor pool asymmetry

Creator:: Zhang, Xiaolin
Resource Type:: Dissertation

Modulation of deoxyribonucleoside triphosphate levels, DNA synthesis rates and fidelity in mammalian cells

Creator:: Martomo, Stella A.
Abstract:: Deoxyribonucleoside triphosphate (dNTP) concentrations measured in cells are not symmetric. dGTP almost always represents only 5-10% of the total dNTP pools in cells. In an in vitro replication system involving semiconservative replication from an SV 40 origin, the mutation frequency of an M13 phagemid replicated by human cell extracts in...
Resource Type:: Dissertation

Precursors for mitochondrial DNA replication : metabolic sources and relations to mutagenesis and human diseases

Creator:: Song, Shiwei
Abstract:: It is well known that the mitochondrial genome has a much higher spontaneous mutation rate than the nuclear genome. mtDNA mutations have been identified in association with many diseases and aging. mtDNA replication continues throughout the cell cycle, even in post-mitotic cells. Therefore, a constant supply of nucleotides is required...
Resource Type:: Dissertation
Full Text:: . Lenaz, G.(1998) Biochim. Biophys. Acta 1366, 53-67. Lim, S. B., Longley, M. J., and Copeland, W. C

Organization of the T4 dNTP synthetase complex at DNA replication sites

Creator:: Kim, JuHyun
Abstract:: With respect to a multienzyme complex of deoxyribonucleoside triphosphate (dNTP) synthesis somehow juxtaposed with DNA replication sites, our laboratory has demonstrated the existence of a multienzyme complex in T4-infected E. coli, named the T4 dNTP synthetase complex, but the idea of direct linkage of dNTP synthesis to DNA replication and...
Resource Type:: Dissertation

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

Creator:: Bestwick, Richard Keith
Abstract:: This dissertation describes an investigation of DNA precursor supply for mitochondrial and nuclear DNA synthesis in HeLa cells and Mouse L-cells. HeLa cells were used for the quantitation of cellular and mitochondrial deoxyribonucleoside triphosphate (dNTP) and ribonucleoside triphosphate (rNTP) pools and of changes in pools in response to treatment with...
Resource Type:: Dissertation

Large subunit of vaccinia cirus ribonucleotide reductase : affinity chromatography-based purification and photoaffinity labeling

Creator:: Warth, Rainer K.
Abstract:: Ribonucleoside diphosphate reductase (RR) from vaccinia virus was recently cloned and overexpressed rn Escherichia coli. The amino acid sequence identities of the small and large subunits between the mouse and the vaccinia virus reductase are approximately 80 and 72 percent, respectively. In addition, vaccinia virus RR displays similar complex allosteric...
Resource Type:: Masters Thesis

Studies on DNA precursor metabolism in vaccinia virus-infected mamalian cells

Creator:: Spiro, Craig
Abstract:: Vaccinia virus-infected animal cells have been used to study the interactions between the replication of deoxyribonucleic acid (DNA) and the biosynthesis of its nucleotide precursors. Some antimetabolites that inhibit DNA replication have as their targets enzymes of nucleotide biosynthesis. Furthermore, the disruption of nucleotide metabolism can alter the fidelity of...
Resource Type:: Dissertation

Attempted cloning of T4 phage ribonucleotide reductase

Creator:: Booth, Joseph
Abstract:: Ribonucleotide reductase is an important enzyme in the control of DNA replication within the cell. Ribonucleotide reductase exerts its control through enzymatic reduction of nucleoside diphosphates. The bacteriophage T4 enzyme is an example of the class of iron-requiring reductases which also includes E. coli and mammalian ribonucleotide reductases. The two...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Joseph W. Booth for the degree of Master of Science in Biochemistry

Bacteriophage T4-coded dihydrofolate reductase : cloning and structural analysis of its gene and organization of flanking regions

Creator:: Purohit, Sarla
Abstract:: The dihydrofolate reductase gene of bacteriophate T4 has been investigated at the structural level to elucide the unusual regulation of expression of this gene and possible evolutionary relationships between the ohage and drug resistance factors-encoded dihydrofolate reductases (DHFR). A 1.1-kilobase-pair restriction fragment of the T4 multiple mutant dec8 containing frd,...
Resource Type:: Dissertation
Full Text:: during the early phases of this research, and wish to thank Dr. Henry W. Schaup for his helpful insights

ScholarsArchive@OSU

Protein-protein interactions in the bacteriophage T4 dNTP synthetase complex

Mutagenic mechanisms associated with DNA cytosine methylation, DNA base sequence context and DNA precursor pool asymmetry

Modulation of deoxyribonucleoside triphosphate levels, DNA synthesis rates and fidelity in mammalian cells

Precursors for mitochondrial DNA replication : metabolic sources and relations to mutagenesis and human diseases

Organization of the T4 dNTP synthetase complex at DNA replication sites

DNA precu[r]sor compartmentation in mammalian cells : metabolic and anti-metabolic studies of nuclear and mitochondrial DNA synthesis

Large subunit of vaccinia cirus ribonucleotide reductase : affinity chromatography-based purification and photoaffinity labeling

Studies on DNA precursor metabolism in vaccinia virus-infected mamalian cells

Attempted cloning of T4 phage ribonucleotide reductase

Bacteriophage T4-coded dihydrofolate reductase : cloning and structural analysis of its gene and organization of flanking regions

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