@article{GoebelKathariouKuhnetal.1988,
author = {Goebel, Werner and Kathariou, S. and Kuhn, M. and Sokolovic, Z. and Kreft, J{\"u}rgen and K{\"o}hler, S. and Funke, D. and Chakraborty, T. and Leimeister-W{\"a}chter, M.},
title = {Hemolysin from Listeria-biochemistry, genetics and function in pathogenesis},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60563},
year = {1988},
abstract = {No abstract available},
subject = {Biologie},
language = {en}
}
@article{GoebelChakrabortyKreft1988,
author = {Goebel, Werner and Chakraborty, T. and Kreft, J{\"u}rgen},
title = {Bacterial hemolysins as virulence factors},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60553},
year = {1988},
abstract = {No abstract available},
subject = {Biologie},
language = {en}
}
@article{KreftFunkeHaasetal.1989,
author = {Kreft, J{\"u}rgen and Funke, Dorothee and Haas, Albert and Lottspeich, Friedrich and Goebel, Werner},
title = {Production, purification and characterization of hemolysins from Listeria ivanovii and Listeria monocytogenes Sv4b.},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60545},
year = {1989},
abstract = {In culture supematants of both Listeria ivanovii and Listeria monocytogenes Sv4b, for the first time a hemolysin of molecular weight 58 kDa was identified, which had all the characteristics of an SH-activated cytolysin, and which was therefore identified as Iisteriolysin 0 (LLO). In the case of L. ivanovii a second major supematant protein of molecular weight 24 kDa co-purified with LLO. However, the function of this protein has to be determined. In culture supematants of L. ivanovii a sphingomyelinase and a Iecithinase activity could be detected, both enzymatic activities together contributing to the pronounced hemolysis caused by L. ivanovii. The N-tenninal amino acid sequences of LLO and the 24 kDa from L. ivanovii are shown.},
subject = {Biologie},
language = {en}
}
@article{HaasBrehmKreftetal.1991,
author = {Haas, Albert and Brehm, Klaus and Kreft, J{\"u}rgen and Goebel, Werner},
title = {Cloning, characterization, and expression in Escherichia coli of a gene encoding Listeria seeligeri catalase, a bacterial enzyme highly homologous to mammalian catalases},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60536},
year = {1991},
abstract = {A gene coding for catalase (hydrogen-peroxide:hydrogen-peroxide oxidoreductase; EC 1.11.1.6) of the grain-positive bacterium Listeria seeligeri was cloned from a plasmid library of EcoRI-digested chromosomal DNA, with Escherichia coli DHSa as a host. The recombinant catalase was expressed in E. coli to an enzymatic activity approximately SO times that of the combined E. coli catalases. The nucleutide sequence was determined, and the deduced amino acid sequence revealed 43.2\% amino acid sequence identity between bovine liver catalase and L. seeligeri catalase. Most of the amino acid residues which are involved in catalytic activity, the formation of the active center accession channel, and heme binding in bovine liver catalase were also present in L. seeligeri catalase at the corresponding positions. The recombinant protein contained 488 amino acid residues and had a calculated molecular weight of 55,869. The predicted isoelectric point was 5.0. Enzymatic and genetic analyses showed that there is most probably a single catalase of this type in L. seeligeri. A perfect 21-bp inverted repeat, which was highly homologous to previously reported binding sequences of the Fur (ferric uptake regulon) protein of E. coli, was detected next to the putative promoter region of tbe L. seeligeri catalase gene.},
subject = {Biologie},
language = {en}
}
@article{HaasDumbskyKreft1992,
author = {Haas, Albert and Dumbsky, Martina and Kreft, J{\"u}rgen},
title = {Listeriolysin genes: complete sequence of ilo from Listeria ivanovii and of lso from Listeria seeligeri},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60529},
year = {1992},
abstract = {The completc DNA scqucnccs coding for thc thiol-activated cytolysins from Listeria ivanovii, ivanolysin 0 (ILO) and for sccligerolysin 0 (LSO) from Listeria seeligeri have been dctermined. Thc deduced amino acid scquences revealed that: (i) the primary translation products comprise 528 (ILO) and 530 (LSO) amino acids. respectively. (ii) ILO contains two cysteines. LSO has a substitution in the conserved cysteine motif.},
subject = {Biologie},
language = {en}
}
@article{BrehmHaasGoebeletal.1992,
author = {Brehm, Klaus and Haas, Albert and Goebel, Werner and Kreft, J{\"u}rgen},
title = {A gene encoding a superoxide dismutase of the facultative intracellular bacterium Listeria monocytogenes},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60515},
year = {1992},
abstract = {A gene (Imsod) encoding superoxide dismutase (SOD; EC 1.15.1.1) of the facultative intracellular pathogen, Listeria monocytogenes, was cloned by functional complementation of an SOD-deficient Escherichia coli mutant. The nucleotide sequence was determined and the deduced amino acid (aa) sequence (202 aa) showed close similarity to manganese-containing SOD's from other organisms. Subunits of the recombinant L. monocytogenes SOD (re-SOD) and of both E. coli SODs formed enzymatically active hybrid enzymes in vivo. DNA/DNA-hybridization experiments showed that this type of recombinant re-sod gene is conserved within the genus Listeria.},
subject = {Biologie},
language = {en}
}
@article{LampidisGrossSokolovicetal.1994,
author = {Lampidis, Robert and Gross, Roy and Sokolovic, Zeljka and Goebel, Werner and Kreft, J{\"u}rgen},
title = {The virulence regulator protein of Listeria ivanovii is highly homologous to PrfA from Listeria monocytogenes and both belong to the Crp-Fnr family of transcription regulators},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-60503},
year = {1994},
abstract = {No abstract available},
subject = {Biologie},
language = {en}
}
@article{GesslerBarnekow1984,
author = {Gessler, Manfred and Barnekow, Angelika},
title = {Differential expression of the cellular oncogenes c-src and c-yes in embryonal and adult chicken tissues},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-59289},
year = {1984},
abstract = {The cellular onc-genes c-src and c-yes are expressed very differently during chicken embryonic development. The c-src mRNA and its translational product are detectable at high levels in brain extracts of chicken embryos and adult chickens, whereas muscle extracts show an age-dependent decrease in the amounts of c-src-specific mRNA and pp60c-src kinase activity. In contrast, the Ievels of c-yes mRNA in brain, heart, and muscle are relatively low in early embryonic stages and increase later on to values comparable to those found for liver, while in adult animals the pattern of c-yes expression is similar to that of the c-src gene. From the close correlation between the Ievels of pp60c-src, its enzymatic activity, and its corresponding mRNA at a given stage of development and in given tissues, it appears that the expression of pp60c-src is primarily controlled at the level of transcription. It is suggested that because of the different patterns of expression, the two cellular oncogenes, c-src and c-yes, play different roles in cell proliferation during early embryonic stages as weil as in ensuing differentiation processes.},
subject = {Biochemie},
language = {en}
}
@article{BarnekowGessler1986,
author = {Barnekow, Angelika and Gessler, Manfred},
title = {Activation of the pp60\(^{c-src}\) kinase during differentiation of monomyelocytic cells in vitro},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-59278},
year = {1986},
abstract = {Tbe proto-oncogene c-src, the cellular homolog of the Rous sarcoma virus (RSV) transforming gene v-src, is expressed in a tissue-specific and age-dependent manner. Its physiological function, although still unknown, appears to be more closely related to differentiation processes than to proliferation processes. To obtain more information about the physiological role of the c-src gene in cells, we have studied differentiation-dependent alterations using the human HL-60 leukaemia cell line as a model system. Induction of monocytic and granulocytic differentiation of HL-60 cells by 12-0-tetradecanoylphorbol-13-acetate (TPA) and dimethylsulfoxide (DMSO) is associated with an activation of the pp60c-src tyrosine kinase, but not with increased c-src gene expression. Control experiments exclude an interaction of TPA and DMSO themselves with the pp60c-src kinase.},
subject = {Biochemie},
language = {en}
}
@article{GesslerBruns1988,
author = {Gessler, Manfred and Bruns, Gail A. P.},
title = {Molecular mapping and cloning of the breakpoints of a chromosome 11p14.1-p13 deletion associated with the AGR syndrome},
url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-59264},
year = {1988},
abstract = {Chromosome 11p13 is frequently rearranged in individuals with the WAGR syndrome (Wilms tumor, aniridia, genitourinary anomalies, and mental retardation) or parts of this syndrome. To map the cytogenetic aberrations molecularly, we screened DNA from cell Unes with known WAGR-related chromosome abnormalities for rearrangements with pulsed fleld gel (PFG) analysis using probes deleted from one chromosome 11 homolog of a WAGR patient. The first alteration was detected in a cell line from an individual with aniridia, genitourinary anomalies, mental retardation, and a deletion described as 11p14.1-p13. We have located one breakpoint close to probe HU11-164B and we have cloned both breakpoint sites as well as the junctional fragment. The breakpoints subdivide current intervals on the genetic map, and the probes for both sides will serve as important additional markers for a long-range restriction map of this region. Further characterization and sequencing of the breakpoints may yield insight into the mechanisms by which these deletions occur.},
subject = {Biochemie},
language = {en}
}