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Fakultät Biologie
Universitätsstr. 5
45141 Essen
S05 T04 B05
Mi 10-11


  • 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

Die folgenden Publikationen sind in der Online-Universitätsbibliographie der Universität Duisburg-Essen verzeichnet. Weitere Informationen finden Sie gegebenenfalls auch auf den persönlichen Webseiten der Person.

    Artikel in Zeitschriften

  • 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 Jg. 16 (2016) Nr. 1,
    ISSN: 1471-2407
  • 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 Jg. 36 (2016) Nr. 7, S. 684 - 692
    ISSN: 1573-2592; 0271-9142
  • 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 Jg. 5 (2014) S. 1944 - 1965
    ISSN: 2190-4286
  • 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 Jg. 8 (2013) Nr. 5, S. e64139
    ISSN: 1932-6203
  • 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 Jg. 12 (2013) Nr. 14, S. 2219 - 2232
    ISSN: 1551-4005
  • 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 Jg. 701 (2010) Nr. 1, S. 3 - 11
    ISSN: 1383-5718; 1879-3592
  • 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 Jg. 701 (2010) Nr. 1, S. 80 - 85
    ISSN: 1383-5718; 1879-3592
  • Horstmann, M.; Durante, M.; Johannes, Christian; Obe, G.
    Chromosomal intrachanges induced by swift iron ions.
    In: (Adv. Space Res.) Jg. 35 (2005) S. 276 - 279
  • Muller, W.U.; Ciborovius, J.; Bauch, T.; Johannes, Christian; Schunck, C.; Mallek, U.; Bocker, W.; Obe, G.; Streffer, C.
    Analysis of the Action of the Restriction Endonuclease AluI Using Three Different Comet Assay Protocols.
    In: (Strahlenther. Onkol.) Jg. 180 (2004) Nr. 10, S. 655 - 664
  • Johannes, Christian; Horstmann, M.; Durante, M.; Chudoba, I.; Obe, G.
    Chromosome intrachanges and interchanges detected by multicolor banding in lymphocytes: searching for clastogen signatures in the human genome.
    In: (Radiat. Res.) Jg. 161 (2004) Nr. 5, S. 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 Jg. 162 (2004) S. 601 - 601
    ISSN: 0033-7587
  • Obe, G.; 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 Res.) Jg. 504 (2002) S. 17 - 36
  • Johannes, Christian; Chudoba, I.; Obe, G.
    Analysis of X-ray induced aberrations in human chromosome 5 using high resolution multi-colour banding FISH (mBAND).
    In: (Chromosome Res.) Jg. 7 (1999) S. 625 - 633
  • Johannes, Christian; Schunck, C.; Hüsing, J.; Obe, G.
    Influence of sodium butyrate on the induction of radiation-induced chromosomal aberrations and sister chromatid exchanges in Chinese hamster ovary (CHO) cells.
    In: (Mutation Res.) Jg. 429 (1999) S. 141 - 146
  • Obe, G.; Facius, R.; Reitz, G.; Johannes, I.; Johannes, Christian
    Manned missions to Mars and chromosome damage.
    In: (Int. J. Radiat. Biol.) Jg. 75 (1999) S. 429 - 433
  • Obe, G.; Johannes, Christian; Bruckmann, E.; Chudoba, I.
    Origin of chromosomal aberrations and sister chromatid exchanges.
    In: (Cytogenet. Cell Genet.) Jg. 85 (1999) S. 17
  • 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: (Int. J. Radiat. Biol.) Jg. 72 (1997) S. 727 - 734
  • Obe, G.; Johannes, I.; Johannes, Christian; Heckeley, N.; Hallmann, K.; Reitz, G.
    Chromosomenaberrationen bei Astronauten.
    In: Flugmagazin Jg. 4 (1997) S. 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 Jg. 72 (1997) S. 15
    ISSN: 0070-2463; 0171-9335
  • 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-rays, bleomycin or DNase I.
    In: (Mutation Res.) Jg. 373 (1997) S. 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 Jg. 15 (1997) Nr. 21, S. 2615 - 2623
    ISSN: 1476-5594
  • Johannes, Christian; Obe, G.
    Ultrasound permeabilizes CHO cells for the endonucleases AluI and benzon nuclease.
    In: (Mutation Res.) Jg. 374 (1997) S. 245 - 251
  • Obe, G.; Eke, P.; Johannes, Christian
    Exposure of CHO cells to AluI: comparison of chromosomal aberrations and cell survival.
    In: (Mutation Res.) Jg. 326 (1995) S. 171 - 174
  • Johannes, Christian; Obe, G.
    Combination treatments of Chinese hamster ovary cells with various restriction endonucleases result in chromosomal aberrations whose frequencies are additive or less than additive.
    In: (Mutation Res.) Jg. 309 (1994) S. 211 - 217
  • Johannes, Christian; Obe, G.
    Induction of chromosomal aberrations with benzon nuclease in Chinese hamster ovary (CHO) cells.
    In: (Mutation Res. Letters) Jg. 325 (1994) S. 113 - 116
  • Obe, G.; Schunck, C.; Johannes, Christian
    Induction of sister-chromatid exchanges by AluI, DNase I, benzon nuclease and bleomycin in Chinese hamster ovary (CHO) cells.
    In: (Mutation Res.) Jg. 307 (1994) S. 315 - 321
  • Weissenborn, U.; Johannes, Christian; Raesfeld, C.; Obe, G.
    Potentiation of the cytogenetic effects of bleomycin in mammalian cells by membrane permeabilization.
    In: (Biol. Jg. 113 (1994) S. 53 - 67
  • Obe, G.; Johannes, Christian; Werthmann, I.; Folle, G.A.
    Chromatid-type aberrations induced by AluI in Chinese hamster ovary cells.
    In: Mutation Research Jg. 299 (1993) S. 305 - 311
  • Obe, G.; Johannes, Christian
    Chromosomal aberrations induced with endonucleases. Review Article.
    In: (Rev. Brasis. Genet.) Jg. 16 (1993) Nr. 3, S. 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 Jg. 7 (1992) S. 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 Jg. 7 (1992) S. 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 Jg. 7 (1992) S. 225 - 232
  • Folle, G.A.; Johannes, Christian; Obe, G.
    Induction of chromosomal aberrations by DNaseI.
    In: (Int. J. Radiat. Biol.) Jg. 59 (1991) S. 1371 - 1378
  • Johannes, Christian; Obe, G.
    Induction of chromosomal aberrations with the restriction endonuclease AluI in Chinese hamster ovary cells: comparison of different treatment methods.
    In: (Int. J. Radiat. Biol.) Jg. 59 (1991) S. 1379 - 1393
  • Johannes, Christian; Tuschy, S.; Lamprecht, I.; Obe, G.
    The intercellular distributions of chromosomal aberrations induced by the restriction endonucleases Alu I and Bam HI in Chinese hamster ovary cells are overdispersed
    In: (Biol. Zbl.) Jg. 108 (1989) S. 445 - 451
  • Obe, G.; Johannes, Christian
    Chromosomal aberrations induced by the restriction endonucleases Alu I and Bam HI: Comparison with X-rays
    In: (Biol. Zbl.) Jg. 106 (1987) S. 175 - 190
  • Obe, G.; Johannes, Christian; Vasudev, V.; Kasper, P.; Lamprecht, I.
    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 Res.) Jg. l92 (1987) S. 263 - 269
  • Gustavino, B.; Johannes, Christian; Obe, G.
    Restriction endonculease Bam HI induces chromosomal aberrations in Chinese hamster ovary (CHO) cells
    In: (Mutation Res.) Jg. 175 (1986) S. 91 - 95
  • Beiträge in Sammelwerken und Tagungsbänden

  • Johannes, Christian; Obe, Guenter
    Chromosomal Aberration Test in Human Lymphocytes
    In: Genotoxicity Assessment: Methods and Protocols / Dhawan, Alok; Bajpayee, Mahima (Hrsg.), 2019, S. 121 - 134
    ISBN: 978-1-4939-9645-2
  • Johannes, Christian; Obe, Guenter
    Chromosomal aberration test in human lymphocytes
    In: Genotoxicity assessment: methods and protocols / Dhawan, Alok; Bajpayee, Mahima (Hrsg.), 2013, S. 165 - 178
    ISBN: 978-1-62703-528-6 ISSN: 1940-6029; 1064-3745
  • Johannes, Christian; Johannes, I.; Obe, G.; Facius, R.; Reitz, G.
    Chromosomenaberrationen in Lymphozyten von Astronauten
    In: Bilanzsymposium Forschung unter Weltraumbedingungen, Norderney 1998 / Keller, M.A.; Sahm, P.R. (Hrsg.), 2000, S. 493 - 499
  • Johannes, Christian; Obe, G.
    "Life time" of AluI inside Glycerol-induced vesicles in CHO cells.
    In: Chromosomal Alterations: Origin and Significance. / Obe, G.; Natarajan, A.T. (Hrsg.), 1994, S. 184 - 191
  • Obe, G.; Johannes, Christian
    Chromosomal aberrations induced by restriction endonucleases.
    In: Eukaryotic Chromosomes. Structural and Functional Aspects. / Sobti, R.C.; Obe, G. (Hrsg.), 1991, S. 270 - 272
  • Obe, G.; Vasudev, V.; Johannes, Christian
    Chromosome aberrations induced by restriction endonucleases
    In: Cytogenetics. Basic and Applied Aspects / Obe, G.; Basler, A. (Hrsg.), 1987, S. 300 - 314