Research Topics
| B Munch-PetersenSummaryAffiliation: Roskilde University Country: Denmark Publications
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Detail Information
Publications
Enzymatic regulation of cytosolic thymidine kinase 1 and mitochondrial thymidine kinase 2: a mini reviewB Munch-Petersen
Department of Science, Systems and Models NSM, Roskilde, Denmark
Nucleosides Nucleotides Nucleic Acids 29:363-9. 2010..The complex enzymatic regulation of TK1 and TK2 and the possible physiological significance of this regulation will be discussed...
Functional expression of a multisubstrate deoxyribonucleoside kinase from Drosophila melanogaster and its C-terminal deletion mutantsB Munch-Petersen
Department of Life Sciences and Chemistry, Roskilde University, P O Box 260, DK 4000 Roskilde, Denmark
J Biol Chem 275:6673-9. 2000..Removal of the C-terminal 20 amino acids increased the specific activity 2-fold, but 99% of the activity was lost after removal of the C-terminal 30 amino acids...
Reversible tetramerization of human TK1 to the high catalytic efficient form is induced by pyrophosphate, in addition to tripolyphosphates, or high enzyme concentrationBirgitte Munch-Petersen
Department of Science, Systems and Models, Roskilde University, Denmark
FEBS J 276:571-80. 2009..Furthermore, the enzyme concentration was found to have a pivotal effect on catalytic efficiency...
Four deoxynucleoside kinase activities from Drosophila melanogaster are contained within a single monomeric enzyme, a new multifunctional deoxynucleoside kinaseB Munch-Petersen
Department of Life Sciences and Chemistry, Roskilde University, P O Box 260, DK 4000 Roskilde, Denmark
J Biol Chem 273:3926-31. 1998....
Valine, not methionine, is amino acid 106 in human cytosolic thymidine kinase (TK1). Impact on oligomerization, stability, and kinetic propertiesD Berenstein
Department of Life Sciences and Chemistry, Roskilde University, DK 4000 Roskilde, Denmark
J Biol Chem 275:32187-92. 2000....
Thymidine kinase 1 deficient cells show increased survival rate after UV-induced DNA damageT Skovgaard
Department of Science Systems and Models, Roskilde University, Roskilde, Denmark
Nucleosides Nucleotides Nucleic Acids 29:347-51. 2010..Our results suggest that higher thymidine levels in the TK- cells caused by defect thymidine salvage to dTTP protects against UV irradiation...
Thymidine in the micromolar range promotes rejoining of UVC-induced DNA strand breaks and prevents azidothymidine from inhibiting the rejoining in quiescent human lymphocytesB Munch-Petersen
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Mutat Res 383:143-53. 1997..The results also indicate that an expansion of the dTTP pool may counteract the inhibiting effect of AZT on DNA repair in quiescent lymphocytes...
Effect of C-terminal of human cytosolic thymidine kinase (TK1) on in vitro stability and enzymatic propertiesC Zhu
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Nucleosides Nucleotides Nucleic Acids 25:1185-8. 2006..We found that deletion of the C-terminal fold markedly increased the stability as well as the catalytic activity...
The role of mitochondrial dNTP levels in cells with reduced TK2 activityC Desler
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Nucleosides Nucleotides Nucleic Acids 25:1171-5. 2006..Our results suggest that import of cytosolic dNTPs in mitochondria of proliferating cells can compensate a TK2 induced imbalance of the mitochondrial dNTP pool...
Purification and characterization of wild-type and mutant TK1 type kinases from Caenorhabditis elegansT Skovgaard
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Nucleosides Nucleotides Nucleic Acids 25:1165-9. 2006..This activation only occurs at an enzyme concentration in the incubation buffer of 0.5 micro g/ml (8.42 nM) or higher. C-terminal deletion of the enzyme results in lower catalytic efficiency and stability...
Drosophila deoxyribonucleoside kinase mutants with enhanced ability to phosphorylate purine analogsW Knecht
BioCentrum DTU, Technical University of Denmark, Lyngby, Denmark
Gene Ther 14:1278-86. 2007..We also show that a choice of the selection and screening system plays a crucial role when optimizing suicide genes by directed evolution...
Structural basis for substrate specificities of cellular deoxyribonucleoside kinasesK Johansson
Department of Molecular Biology, Swedish University of Agricultural Sciences, Box 590, Biomedical Center, S 751 24 Uppsala, Sweden
Nat Struct Biol 8:616-20. 2001..The two new structures provide an explanation for the substrate specificity of cellular deoxyribonucleoside kinases...
Identification of residues involved in the specificity and regulation of the highly efficient multisubstrate deoxyribonucleoside kinase from Drosophila melanogasterW Knecht
Department of Microbiology Building 301, Technical University of Denmark, Lyngby, DK 2800, Denmark
J Mol Biol 301:827-37. 2000..melanogaster. At the same time these mutant enzymes exhibit properties useful in biotechnological and medical applications...
Substrate/inhibitor specificities of human deoxycytidine kinase (dCK) and thymidine kinases (TK1 and TK2)B Kierdaszuk
University of Warsaw, Department of Biophysics, Poland
Adv Exp Med Biol 431:623-7. 1998..The overall data are relevant to the role of these enzymes in "activation" (by phosporylation) of nucleoside analogues with antiviral and antitumor activities...
Diverging substrate specificity of pure human thymidine kinases 1 and 2 against antiviral dideoxynucleosidesB Munch-Petersen
Department of Biochemistry I, Karolinska Institute, Stockholm, Sweden
J Biol Chem 266:9032-8. 1991..The much lower tolerance for modifications of the deoxyribose moiety of TK2 as compared to TK1 is important for the design of new antiviral nucleoside analogues intended for use in cells with different expression of TK1 and TK2...
Human thymidine kinase 2: molecular cloning and characterisation of the enzyme activity with antiviral and cytostatic nucleoside substratesL Wang
Department of Veterinary Medical Chemistry, Swedish University of Agricultural Sciences, Biomedical Center, Uppsala
FEBS Lett 443:170-4. 1999..The results demonstrate a broad substrate specificity and complex kinetics, and suggest a role for TK2 in the activation of chemotherapeutic nucleoside analogues...
