Faculty of Biology

Register of People

The person's links lead to the central register of persons of the UDE, refering to the data of LSF. Personal data can be edited in LSF (Login with Uni-ID is required).

Fakultät Biologie

Address
Universitätsstr. 5
45141 Essen
Room
S05 T04 B05
Office hours
Mi 10-11

Functions

  • Studienberatung, Studienberatung Biologie LGyGe/ LA Sek II

  • Studienberatung, Studienberatung Biologie für Berufskollegs

  • Mitglied/er, Zwischenprüfungsausschuss Lehramt Biologie

  • Studiendekan/in, Dekanat Fakultät Biologie

  • Wissenschaftliche/r Mitarbeiter/in, Molekulare Genetik I

The following publications are listed in the online university bibliography of the University of Duisburg-Essen. Further information may also be found on the person's personal web pages.

    Journal articles

  • Šumbera, R.; Uhrová, M.; Begall, Sabine; Caspar, Kai R.; Jerkovičová, D.; Van Daele, P.; Chitaukali, W.N.; Faulkes, C.G.; Bennett, N.C.; Johannes, Christian; Burda, H.; Mikula, O.
    The biology of an isolated Mashona mole-rat population from southern Malawi, with implications for the diversity and biogeography of the genus Fukomys
    In: Organisms Diversity and Evolution Vol. 23 (2023) Nr. 3, pp. 603 - 620
  • Schmidt, Nina; Irle, Inga; Ripkens, Kamilla; Lux, Vanda; Nelles, Jasmin; Johannes, Christian; Parry, Lee; Greenow, Kirsty; Amir, Sarah; Campioni, Mara; Baldi, Alfonso; Oka, Chio; Kawaichi, Masashi; Clarke, Alan R.; Ehrmann, Michael
    Epigenetic silencing of serine protease HTRA1 drives polyploidy
    In: BMC Cancer Vol. 16 (2016) Nr. 1,
  • Daschkey, Svenja; Bienemann, Kirsten; Schuster, Volker; Kreth, Hans Wolfgang; Linka, René Martin; Hönscheid, Andrea; Fritz, Gerhard; Johannes, Christian; Fleckenstein, Bernhard; Kempkes, Bettina; Gombert, Michael; Ginzel, Sebastian; Borkhardt, Arndt
    Fatal Lymphoproliferative Disease in Two Siblings Lacking Functional FAAP24
    In: Journal of Clinical Immunology Vol. 36 (2016) Nr. 7, pp. 684 - 692
  • Ahlberg, Sebastian; Antonopulos, Alexandra; Diendorf, Jörg; Dringen, Ralf; Epple, Matthias; Flöck, Rebekka; Goedecke, Wolfgang; Graf, Christina; Haberl, Nadine; Helmlinger, Jens; Herzog, Fabian; Heuer, Frederike; Hirn, Stephanie; Johannes, Christian; Kittler, Stefanie; Köller, Manfred; Korn, Katrin; Kreyling, Wolfgang G.; Krombach, Fritz; Lademann, Jürgen; Loza, Kateryna; Luther, Eva M.; Malissek, Marcelina; Meinke, Martina C.; Nordmeyer, Daniel; Pailliart, Anne; Raabe, Jörg; Rancan, Fiorenza; Rothen-Rutishauser, Barbara; Rühl, Eckart; Schleh, Carsten; Seibel, Andreas; Sengstock, Christina; Treuel, Lennart; Vogt, Annika; Weber, Katrin; Zellner, Reinhard
    PVP-coated, negatively charged silver nanoparticles : A multi-center study of their physicochemical characteristics, cell culture and in vivo experiments
    In: Beilstein Journal of Nanotechnology Vol. 5 (2014) pp. 1944 - 1965
  • Johnen, Georg; Rozynek, Peter; Gathen, Yvonne von der; Bryk, Oleksandr; Zdrenka, Ricarda; Johannes, Christian; Weber, Daniel; Igwilo-Okuefuna, O'Brien; Raiko, Irina; Hippler, Jörg; Brüning, Thomas; Dopp, Elke
    Cross-contamination of a UROtsa stock with T24 cells : molecular comparison of different cell lines and stocks
    In: PLoS ONE Vol. 8 (2013) Nr. 5, pp. e64139
  • Wülling, Manuela; Pasdziernik, Markus; Moll, Carina; Thiesen, Andrea; Schneider, Sabine; Johannes, Christian; Vortkamp, Andrea
    The multi zinc-finger protein Trps1 acts as a regulator of histone deacetylation during mitosis
    In: Cell Cycle Vol. 12 (2013) Nr. 14, pp. 2219 - 2232
  • Obe, Guenter; Johannes, Christian; Ritter, Sylvia
    The number and not the molecular structure of DNA double-strand breaks is more important for the formation of chromosomal aberrations : A hypothesis
    In: Mutation Research / Genetic Toxicology and Environmental Mutagenesis Vol. 701 (2010) Nr. 1, pp. 3 - 11
  • Johannes, Christian; Dixius, Anne; Pust, Mareike; Hentschel, Reinhard; Buraczewska, Iwona; Staaf, Elina; Brehwens, Karl; Haghdoost, Siamak; Nievaart, Sander; Czub, Joanna; Braziewicz, Janusz; Wojcik, Andrzej
    The yield of radiation-induced micronuclei in early and late-arising binucleated cells depends on radiation quality
    In: Mutation Research / Genetic Toxicology and Environmental Mutagenesis Vol. 701 (2010) Nr. 1, pp. 80 - 85
  • Horstmann, M.; Durante, M.; Johannes, Christian; Obe, G.
    Chromosomal intrachanges induced by swift iron ions
    In: Advances in Space Research Vol. 35 (2005) Nr. 2, pp. 276 - 279
  • Müller, Wolfgang-Ulrich; Ciborovius, Jens; Bauch, Thomas; Johannes, Christian; Schunck, Christian; Mallek, Ulrike; Bocker, Wilfried; Obe, Günter; Streffer, Christian
    Analysis of the Action of the Restriction Endonuclease AluI Using Three Different Comet Assay Protocols
    In: Strahlentherapie und Onkologie: Journal of Radiation Oncology, Biology, Physics Vol. 180 (2004) Nr. 10, pp. 655 - 664
  • Johannes, Christian; Horstmann, M.; Durante, M.; Chudoba, I.; Obe, Günter
    Chromosome intrachanges and interchanges detected by multicolor banding in lymphocytes : searching for clastogen signatures in the human genome
    In: Radiation Research Vol. 161 (2004) Nr. 5, pp. 540 - 548
  • Johannes, Christian; Horstmann, M.; Durante, Marco; Chudoba, Ilse; Obe, Günter
    Reply to “Comments on ‘Chromosome Intrachanges and Interchanges Detected by Multicolor Banding in Lymphocytes: Searching for Clastogen Signatures in the Human Genome’ by Johanneset al.(Radiat. Res.161, 540– 548, 2004),” by David J. Brenner
    In: Radiation Research Vol. 162 (2004) pp. 601 - 601
  • Obe, Günter; Pfeiffer, P.; Savage, J.R.; Johannes, Christian; Goedecke, W.; Jeppesen, P.; Natarajan, A.T.; Martinez-Lopez, W.; Folle, G.A.; Drets, M.E.
    Chromosomal aberrations : Formation, identification and distribution
    In: Mutation Research / Fundamental and Molecular Mechanisms of Mutagenesis Vol. 504 (2002) Nr. 1-2, pp. 17 - 36
  • Johannes, Christian; Chudoba, Ilse; Obe, Günter
    Analysis of X-ray induced aberrations in human chromosome 5 using high resolution multi-colour banding FISH (mBAND)
    In: Chromosome Research Vol. 7 (1999) Nr. 8, pp. 625 - 633
  • Johannes, Christian; Schunck, Christian; Hüsing, Johannes; Obe, Günter
    Influence of sodium butyrate on the induction of radiation-induced chromosomal aberrations and sister chromatid exchanges in Chinese hamster ovary (CHO) cells
    In: Mutation Research / Fundamental and Molecular Mechanisms of Mutagenesis Vol. 429 (1999) Nr. 1, pp. 141 - 146
  • Obe, Günter; Facius, R.; Reitz, G.; Johannes, I.; Johannes, Christian
    Manned missions to Mars and chromosome damage
    In: International Journal of Radiation Biology (RAB) Vol. 75 (1999) Nr. 4, pp. 429 - 433
  • Obe, G.; Johannes, I.; Johannes, Christian; Hallmann, K.; Reitz, G.; Facius, R.
    Chromosomal aberrations in blood lymphocytes of astronauts after long-term space flights
    In: International Journal of Radiation Biology (RAB) Vol. 72 (1997) Nr. 6, pp. 727 - 734
  • Obe, G.; Johannes, I.; Johannes, Christian; Heckeley, N.; Hallmann, K.; Reitz, G.
    Chromosomenaberrationen bei Astronauten
    In: Flugmagazin Vol. 30 (1997) Nr. 4, pp. 4 - 5
  • Haas, K.; Johannes, Christian; Blass Kampmann, S.; Schmidt, T.; Karsunky, H.; Obe, G.; Möröy, T.
    Cooperation of cyclin E and Ha-ras efficiently generates malignantly transformed and polyploid cells but depends on functional Myc and CDK4
    In: European Journal of Cell Biology (EJCB) Vol. 72 (1997) Nr. 1, pp. 15
  • Johannes, Christian; Heller, W.D.; Eke, P.; Obe, G.
    Frequencies of polycentric chromosomes following combinational treatments of Chinese hamster ovary cells with restriction endonucleases and X-ray, bleomycin or DNase I
    In: Mutation Research / Fundamental and Molecular Mechanisms of Mutagenesis Vol. 373 (1997) Nr. 2, pp. 237 - 244
  • Haas, Kirsten; Johannes, Christian; Geisen, Christoph; Schmidt, Thorsten; Karsunky, Holger; Blass-Kampmann, Sabine; Obe, Günter; Möröy, Tarik
    Malignant transformation by cyclin E and Ha-Ras correlates with lower sensitivity towards induction of cell death but requires functional Myc and CDK4
    In: Oncogene Vol. 15 (1997) Nr. 21, pp. 2615 - 2623
  • Johannes, Christian; Obe, Günter
    Ultrasound permeabilizes CHO cells for the endonucleases AluI and benzon nuclease
    In: Mutation Research / Fundamental and Molecular Mechanisms of Mutagenesis Vol. 374 (1997) Nr. 2, pp. 245 - 251
  • Obe, Günter; Eke, Petra; Johannes, Christian
    Exposure of CHO cells to AluI : comparison of chromosomal aberrations and cell survival
    In: Mutation Research: Fundamental and Molecular Mechanisms of Mutagenesis Vol. 326 (1995) Nr. 2, pp. 171 - 174
  • Johannes, Christian; Obe, Günter
    Combination treatments of Chinese hamster ovary cells with various restriction endonucleases results in chromosomal aberaations whose frequencies are additive or less than additive
    In: Mutation Research: Fundamental and Molecular Mechanisms of Mutagenesis Vol. 309 (1994) Nr. 2, pp. 211 - 217
  • Johannes, Christian; Obe, Günter
    Induction of chromosomal aberrations with benzon nuclease in Chinese hamster ovary (CHO) cells
    In: Mutation Research Letters Vol. 325 (1994) pp. 113 - 116
  • Obe, Günter; Schunck, Christian; Johannes, Christian
    Induction of sister-chromatid exchanges by AluI, DNase I, benzon nuclease and bleomycin in Chinese hamster ovary (CHO) cells
    In: Mutation Research: Fundamental and Molecular Mechanisms of Mutagenesis Vol. 307 (1994) Nr. 1, pp. 315 - 321
  • Weissenborn, U.; Johannes, Christian; Raesfeld, C.; Obe, G.
    Potentiation of the cytogenetic effects of bleomycin in mammalian cells by membrane permeabilization
    In: Biologisches Zentralblatt Vol. 113 (1994) pp. 53 - 67
  • Obe, Günter; Johannes, Christian; Werthmann, Iris; Folle, Gustavo A.
    Chromatid-type aberrations induced by AluI in Chinese hamster ovary cells.
    In: Mutation Research: Genetic Toxology Vol. 299 (1993) Nr. 3-4, pp. 305 - 311
  • Obe, G.; Johannes, Christian
    Chromosomal aberrations induced with endonucleases. Review Article.
    In: (Rev. Brasis. Genet.) Vol. 16 (1993) Nr. 3, pp. 849 - 855
  • Obe, G.; Johannes, Christian; Schulte-Frohlinde, D.
    DNA-double strand breaks induced by sparsely ionizing radiation and endonucleases as critical lesions for all death, chromosomal aberrations, mutations and oncogenic transformation
    In: Mutagenesis Vol. 7 (1992) Nr. 1, pp. 3 - 12
  • Folle, G.A.; Johannes, Christian; Mechoso, B.H.; Medina, I.I.; Obe, G.
    The restriction endonuclease Alu I induces sister chromatid exchange in chinese hamster ovary cells
    In: Mutagenesis Vol. 7 (1992) Nr. 4, pp. 291 - 294
  • Johannes, Christian; Boes, R.; Obe, G.
    Uptake of the restriction endonuclease AluI by Chinese hamster ovary cells measured by frequencies of induced chromosomal aberrations : effect of hypertonic concentrations of glycerol and sorbitol
    In: Mutagenesis Vol. 7 (1992) Nr. 3, pp. 225 - 232
  • Johannes, Christian; Obe, G.
    Induction of Chromosomal Aberrations with the Restriction Endonuclease AluI in Chinese Hamster Ovary Cells : Comparison of Different Treatment Methods
    In: International Journal of Radiation Biology (RAB) Vol. 59 (1991) Nr. 6, pp. 1379 - 1393
  • Folle, G.A.; Johannes, Christian; Obe, G.
    Induction of chromosomal aberrations by DNaseI.
    In: International Journal of Radiation Biology (RAB) Vol. 59 (1991) Nr. 6, pp. 1371 - 1378
  • Johannes, Christian; Tuschy, S.; Lamprecht, I.; Obe, Günter
    The intercellular distributions of chromosomal aberrations induced by the restriction endonucleases Alu I and Bam HI in Chinese hamster ovary cells are overdispersed
    In: Biologisches Zentralblatt Vol. 108 (1989) pp. 445 - 451
  • Obe, Günter; Johannes, Christian
    Chromosomal aberrations induced by the restriction endonucleases Alu I and Bam HI : Comparison with X-rays
    In: Biologisches Zentralblatt Vol. 106 (1987) pp. 175 - 190
  • Obe, Günter; Johannes, Christian; Vasudev, Venkateshaiah; Kasper, P.; Lamprecht, Ingolf H. D.
    Induction of chromosomal aberrations in Chinese hamster ovary cells by the restriction endonuclease Dra I : dose-effect relationships and effect of substitution of chromosomal DNA with bromodeoxyuridine
    In: Mutation Research Letters Vol. 192 (1987) Nr. 4, pp. 263 - 269
  • Gustavino, Bianca; Johannes, Christian; Obe, Günter
    Restriction endonuclease Bam H I induces chromosomal aberrations in Chinese hamster ovary (CHO) cells
    In: Mutation Research Letters Vol. 175 (1986) Nr. 2, pp. 91 - 95
  • Abstracts

  • Obe, Günter; Johannes, Christian; Bruckmann, E.; Chudoba, I.
    Origin of chromosomal aberrations and sister chromatid exchanges
    In: Cytogenetics and Cell Genetics Vol. 85 (1999) Nr. 1-2, pp. 17
  • Book articles / Proceedings papers

  • Johannes, Christian; Obe, Guenter
    Chromosomal Aberration Test in Human Lymphocytes
    In: Genotoxicity Assessment: Methods and Protocols / Dhawan, Alok; Bajpayee, Mahima (Eds.) 2019, pp. 121 - 134
  • Johannes, Christian; Obe, Guenter
    Chromosomal aberration test in human lymphocytes
    In: Genotoxicity assessment: methods and protocols / Dhawan, Alok; Bajpayee, Mahima (Eds.) 2013, pp. 165 - 178
  • Johannes, Christian; Johannes, I.; Obe, G.; Facius, R.; Reitz, G.
    Chromosomenaberrationen in Lymphozyten von Astronauten
    In: Bilanzsymposium Forschung unter Weltraumbedingungen / Bilanzsymposium Forschung unter Weltraumbedingungen: 21. - 23. September 1998, Norderney / Keller, Manfred Hans (Eds.) 2000, pp. 493 - 499
  • Johannes, Christian; Obe, Günter
    “Life time” of AluI inside Glycerol-Induced Vesicles in CHO Cells
    In: Chromosomal Alterations: Origin and Significance / Obe, Günter; Natarajan, Adayapalam T. (Eds.) 1994, pp. 184 - 191
  • Obe, G.; Johannes, Christian
    Chromosomal Aberrations Induced by Restriction Endonucleases
    In: Eukaryotic Chromosomes: Structural and Functional Aspects / Sobti, R.C.; Obe, G. (Eds.) 1991, pp. 270 - 272
  • Obe, G.; Vasudev, V.; Johannes, Christian
    Chromosome aberrations induced by restriction endonucleases
    In: Cytogenetics: Basic and Applied Aspects / Obe, Günter; Basler, A. (Eds.) 1987, pp. 300 - 314