Dr. Ksenija Zahradka
Ruđer Bošković Institute
Bijenička 54
10000 Zagreb
Croatia
Education
1991 B.Sc. in Molecular Biology, Faculty of Science, University of Zagreb, Croatia
1994 M.Sc. in Biology, Faculty of Science, University of Zagreb, Croatia
1999 Ph.D. in Biology, Faculty of Science, University of Zagreb, Croatia
2002 Postdoctoral training in the group of Prof. Miroslav Radman, Faculté de Médecine Necker, Université de Paris-Descartes, Paris, France
Projects
2014-2018 "DNA recombination, repair and maintenance of genome integrity: new pathways" (IP-11-2013-2978), Croatian Science Foundation ; associate
2011-2015 "Biology of Robustness", Mediterranean Institute for Life Sciences (MedILS), Split, Croatia; associate
2007-2013 "Molecular mechanisms of DNA recombination and repair" (098-0982913-2862), Croatian Ministry of Science, Education and Sports ; associate
2007-2010 "Life under extreme conditions", Mediterranean Institute for Life Sciences (MedILS), Split, Croatia; co-leader
Awards and Achievements
2007 National Annual Science Award
2006 Excellence in Science Grant, Croatian Ministry of Science, Education and Sports
2002 Necker Institute postdoctoral fellowship, Paris, France
Classes
Course “Genetic recombination and DNA repair”, PhD studies in Biology, Faculty of Science, University of Zagreb
Course “Mechanisms of DNA damage and repair”, PhD studies in Molecular Biosciences, University of Osijek, University of Dubrovnik and Ruđer Bošković Institute, Zagreb
Featured Publications
Repar, J., Zahradka, D., Sović, I., Zahradka, K. (2021) Characterization of gross genome rearrangements in Deinococcus radiodurans recA mutants. Sci Rep. 11: 10939. doi: 10.1038/s41598-021-89173-9
Buljubašić, M., Hlevnjak, A., Repar, J., Đermić, D., Filić, V., Weber, I., Zahradka, K., Zahradka, D. (2019) RecBCD- RecFOR-independent pathway of homologous recombination in Escherichia coli. DNA Repair 83: 102670. doi: 10.1016/j.dnarep.2019.102670
Repar, J., Supek, F., Klanjscek, T., Warnecke, T., Zahradka, K., Zahradka, D. (2017) Elevated rate of genome rearrangements in radiation-resistant bacteria. Genetics 205: 1677-1689.
Buljubašić, M., Zahradka, D., Zahradka, K. (2013) RecQ helicase acts before RuvABC, RecG and XerC proteins during recombination in recBC sbcBC mutants of Escherichia coli. Res. Microbiol. 164: 987-997.
Buljubašić, M., Repar, J., Zahradka, K., Đermić, D., Zahradka, D. (2012) RecF recombination pathway in Escherichia coli cells lacking RecQ, UvrD and HelD helicases. DNA Repair 11: 419-430.
Repar, J., Cvjetan, S., Slade, D., Radman, M., Zahradka, D., Zahradka, K. (2010) RecA protein assures fidelity of DNA repair and genome stability in Deinococcus radiodurans. DNA Repair 9: 1151-1161.
Zahradka, K., Buljubašić, M., Petranović, M., Zahradka, D. (2009) Roles of ExoI and SbcCD nucleases in "reckless" DNA degradation in recA mutants of Escherichia coli. J. Bacteriol. 191: 1677-1687.
Petranovic, D., Michelsen, O., Zahradka, K., Silva, C., Petranovic, M., Jensen, P. R., Mijakovic, I. (2007) Bacillus subtilis strain deficient for the protein-tyrosine kinase PtkA exhibits impaired DNA replication. Mol. Microbiol. 63: 1797-1805.
Zahradka, K., Slade, D., Bailone, A., Sommer, S., Averbeck, D., Petranovic, M., Lindner, A. B., Radman, M. (2006) Reassembly of shattered chromosomes in Deinococcus radiodurans. Nature 443: 569-573.
Zahradka, K., Šimić, S., Buljubašić, M., Petranović, M., Đermić, D., Zahradka, D. (2006) sbcB15 and delsbcB mutations activate two types of RecF recombination pathway in Escherichia coli. J. Bacteriol. 188: 7562-7571.
Publications
Books and book chapters
Book chapters
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Zahradka, K. & Zahradka, D. (2013) Reckless DNA Degradation. U: Maloy, S. & Hughes, K. (ur.) Brenner's Encyclopedia of Genetics (2nd ed.). San Diego, Academic Press, str. 72-74 doi:10.1016/B978-0-12-374984-0.01272-9.
doi Zahradka, K. (2007) Bacteriophage DNA extraction. U: Ambriović Ristov, A., Brozović, A., Bruvo Mađarić, B., Ćetković, H., Herak Bosnar, M., Hranilović, D., Katušić Hećimović, S., Meštrović Radan, N., Mihaljević, S., Slade, N. & Vujaklija, D. (ur.) Metode u molekularnoj biologiji. Zagreb, Institut Ruđer Bošković, str. 171-174.
Zahradka, D. & Zahradka, K. (2007) Gene transfer by P1 transduction. U: Ambriović Ristov, A., Brozović, A., Bruvo Mađarić, B., Ćetković, H., Herak Bosnar, M., Hranilović, D., Katušić Hećimović, S., Meštrović Radan, N., Mihaljević, S., Slade, N. & Vujaklija, D. (ur.) Metode u molekularnoj biologiji. Zagreb, Institut Ruđer Bošković, str. 919-922.
Zahradka, K. (2007) Pulsed-field gel electrophoresis (PFGE). U: Ambriović Ristov, A., Brozović, A., Bruvo Mađarić, B., Ćetković, H., Herak Bosnar, M., Hranilović, D., Katušić Hećimović, S., Meštrović Radan, N., Mihaljević, S., Slade, N. & Vujaklija, D. (ur.) Metode u molekularnoj biologiji. Zagreb, Institut Ruđer Bošković, str. 206-209.
Zahradka, K. (2007) Preparation of high-molecular weight genomic DNA for pulsed-field gel electrophoresis (PFGE). U: Ambriović Ristov, A., Brozović, A., Bruvo Mađarić, B., Ćetković, H., Herak Bosnar, M., Hranilović, D., Katušić Hećimović, S., Meštrović Radan, N., Mihaljević, S., Slade, N. & Vujaklija, D. (ur.) Metode u molekularnoj biologiji. Zagreb, Institut Ruđer Bošković, str. 189-191.
Zahradka, K. (2007) Genomic DNA extraction from bacterial cells. U: Ambriović Ristov, A., Brozović, A., Bruvo Mađarić, B., Ćetković, H., Herak Bosnar, M., Hranilović, D., Katušić Hećimović, S., Meštrović Radan, N., Mihaljević, S., Slade, N. & Vujaklija, D. (ur.) Metode u molekularnoj biologiji. Zagreb, Institut Ruđer Bošković, str. 141-143.
Journal articles
Scientific and review papers
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Repar, J., Zahradka, D., Sović, I. & Zahradka, K. (2021) Characterization of gross genome rearrangements in Deinococcus radiodurans recA mutants. Scientific reports, 11 (1), 10939, 11 doi:10.1038/s41598-021-89173-9.
doiwww.nature.comdoi.orgfulir.irb.hr -
Buljubašić, M., Hlevnjak, A., Repar, J., Đermić, D., Filić, V., Weber, I., Zahradka, K. & Zahradka, D. (2019) RecBCD- RecFOR-independent pathway of homologous recombination in Escherichia coli. DNA repair, 83, 102670, 16 doi:10.1016/j.dnarep.2019.102670.
doi -
Feliciello, I., Zahradka, D., Zahradka, K., Ivanković, S., Puc, N. & Đermić, D. (2018) RecF, UvrD, RecX and RecN proteins suppress DNA degradation at DNA double-strand breaks in Escherichia coli. Biochimie, 148, 116-126 doi:10.1016/j.biochi.2018.03.005.
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Repar, J., Supek, F., Klanjšček, T., Warnecke, T., Zahradka, K. & Zahradka, D. (2017) Elevated rate of genome rearrangements in radiation-resistant bacteria. Genetics, 205 (4), 1677-1689 doi:10.1534/genetics.116.196154.
doi -
Repar, J., Šućurović, S., Zahradka, K., Zahradka, D. & Ćurković-Perica, M. (2013) Stress resistance of Escherichia coli and Bacillus subtilis is modulated by auxins. Canadian journal of microbiology, 59 (11), 766-770 doi:10.1139/cjm-2013-0266.
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Buljubašić, M., Zahradka, D. & Zahradka, K. (2013) RecQ helicase acts before RuvABC, RecG and XerC proteins during recombination in recBCD sbcBC mutants of Escherichia coli. Research in microbiology, 164 (10), 987-997 doi:10.1016/j.resmic.2013.08.008.
doi -
Repar, J., Zahradka, D. & Zahradka, K. (2013) Accuracy of genome reassembly in gamma-irradiated Escherichia coli. Food technology and biotechnology, 51 (3), 327-337.
fulir.irb.hr -
Repar, J., Briški, N., Buljubašić, M., Zahradka, K. & Zahradka, D. (2013) Exonuclease VII is involved in "reckless" DNA degradation in UV-irradiated Escherichia coli. Mutation research. Genetic toxicology and environmental mutagenesis, 750 (1/2), 96-104 doi:10.1016/j.mrgentox.2012.10.005.
doi -
Buljubašić, M., Repar, J., Zahradka, K., Đermić, D. & Zahradka, D. (2012) RecF recombination pathway in Escherichia coli cells lacking RecQ, UvrD and HelD helicases. DNA repair, 11 (4), 419-430 doi:10.1016/j.dnarep.2012.01.011.
doi -
Repar, J., Cvjetan, S., Slade, D., Radman, M., Zahradka, D. & Zahradka, K. (2010) RecA protein assures fidelity of DNA repair and genome stability in Deinococcus radiodurans. DNA repair, 9 (11), 1151-1161 doi:10.1016/j.dnarep.2010.08.003.
doi -
Zahradka, K., Buljubašić, M., Petranović, M. & Zahradka, D. (2009) Roles of ExoI and SbcCD nucleases in "reckless" DNA degradation in recA mutants of Escherichia coli. Journal of bacteriology, 191 (5), 1677-1687 doi:10.1128/JB.01877-07.
doijb.asm.org Petranovic, D., Michelsen, O., Zahradka, K., Silva, C., Petranovic, M., Jensen, P. & Mijakovic, I. (2007) Bacillus subtilis strain deficient for the protein-tyrosine kinase PtkA exhibits impaired DNA replication. Molecular Microbiology, 63 (6), 1797-1805.
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Zahradka, K., Slade, D., Bailone, A., Sommer, S., Averbeck, D., Petranović, M., Lindner, A. & Radman, M. (2006) Reassembly of shattered chromosomes in Deinococcus radiodurans. Nature, 443, 569-573 doi:10.1038/nature05160.
doiwww.nature.com Zahradka, K., Šimić, S., Buljubašić, M., Petranović, M., Đermić, D. & Zahradka, D. (2006) sbcB15 and delsbcB mutations activate two types of RecF recombination pathway in Escherichia coli. Journal of Bacteriology, 188, 7562-7571.
Zahradka, K., Zahradka, D., Đermić, D., Džidić, S. & Petranović, M. (2002) The inactivation of free phages in UV-irradiated Escherichia coli. Periodicum Biologorum, 104 (4), 399-403.
Zahradka, D., Zahradka, K., Džidić, S., Đermić, D. & Petranović, M. (2002) The rus-1 mutation suppresses cytological defects in recBC sbcBC ruv mutants of Escherichia coli. Periodicum Biologorum, 104 (4), 389-397.
Zahradka, D., Zahradka, K., Petranović, M., Đermić, D. & Brčić-Kostić, K. (2002) The RuvABC resolvase is indispensable for recombinational repair in sbcB15 mutants of Escherichia coli. Journal of Bacteriology, 184 (15), 4141-4147.
Petranović, M., Zahradka, K., Zahradka, D., Petranović, D., Nagy, B., Salaj-Šmic, E. & Petranović, D. (2001) Genetic evidence that the elevated levels of Escherichia coli helicase II antagonize recombinational DNA repair. Biochimie, 83 (-), 1041-1047.
Paškvan, I., Salaj-Šmic, E., Ivančić-Baće, I., Zahradka, K., Trgovčević, Ž. & Brčić-Kostić, K. (2001) The genetic dependence of RecBCD-Gam mediated double strand end repair in Escherichia coli. FEMS Microbiology Letters, 205 (02), 299-303.
Zahradka, K., Zahradka, D. & Petranović, M. (2001) Loss of lambda prophage recombinogenicity in UV-irradiated Escherichia coli : the role of host genes ruvA, ruvB, ruvC and recG. Research in microbiology, 152, 873-881.
Vlahović, K., Petranović, M., Zahradka, D. & Petranović, D. (2000) Progressive loss of lambda prophage recombinogenicity in UV-irradiated Escherichia coli : the role of RecBCD enzyme. Research in microbiology, 151 (9), 727-738.
Petranović, M., Vlahović, K., Zahradka, D., Džidić, S. & Radman, M. (2000) Mismatch repair in Xenopus egg extracts is not strand-directed by DNA methylation. Neoplasma, 47 (6), 375-381.
Zahradka, D., Vlahović, K., Petranović, M. & Petranović, D. (1999) Chromosome segregation and cell division defects in recBC sbcBC ruvC mutants of Escherichia coli. Journal of bacteriology, 181 (19), 6179-6183.
Vlahović, K., Petranović, M., Zahradka, D. & Petranović, D. (1998) Effects of ruv and recG mutations on lambda prophage thermoinducibility in UV-irradiated Escherichia coli. Periodicum biologorum, 100 (3), 383-388.
Membership in professional associations / societies
Croatian Genetic Society (2019-2021 Secretary; 2021 - Vice-president)
European Environmental Mutagenesis and Genomics Society (EEMGS) (2015-2019 Croatian delegate)
Croatian Microbiological Society
Croatian Society for Biochemistry and Molecular Biology
Vice-chair of Scientific Council of Biology, Ruđer Bošković Institute, Zagreb (2016 - )
Vice-chair (2007-2014) and Chair (2015 - ) of Knowledge and Invention Board, Adris Foundation, Croatia