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  • American Association for the Advancement of Science (AAAS)
  • Blackwell Publishing Ltd
  • 2000-2004  (4)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Natural antimicrobial susceptibilities and biochemical profiles of Yersinia enterocolitica-like strains: Y. frederiksenii, Y. intermedia, Y. kristensenii and Y. rohdei (2003)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS immunology and medical microbiology 38 (2003), S. 0 
    Details
    ISSN: 1574-695X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The natural susceptibility of 131 Yersinia strains of Y. frederiksenii (n=38), Y. intermedia (n=48), Y. kristensenii (n=26) and Y. rohdei (n=19) to 70 antibiotics was tested. Minimum inhibitory concentration (MIC) values were determined with a microdilution procedure in IsoSensitest broth (all strains) and cation-adjusted Mueller Hinton broth (some strains). All species were naturally sensitive or sensitive and of intermediate susceptibility to tetracyclines, aminoglycosides, acylureidopenicillins, numerous cephalosporins, carbapenems, aztreonam, quinolones, chloramphenicol, folate-pathway inhibitors, nitrofurantoin, and fosfomycin. Uniform natural resistance was found with penicillin G, oxacillin, several macrolides, lincosamides, streptogramins, glycopeptides, rifampicin and fusidic acid. Species-specific differences in susceptibility affecting clinical assessment criteria were seen with aminopenicillins (in the presence and absence of β-lactamase inhibitors), ticarcillin and some cephalosporins. Major medium-dependent susceptibilities were found with fosfomycin. β-Lactam MIC susceptibility patterns suggested that most strains of the species tested produce both class A and class C (AmpC) β-lactamases that are characteristic for the species. The present study describes a database concerning the natural susceptibility of some Y. enterocolitica-like species to a wide range of antibiotics, which can be applied to validate forthcoming antibiotic susceptibility tests of these strains and might contribute to their identification. An evaluation of 30 biochemical tests that secured phenotypic identification to the Yersinia species level is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0928-8244(03)00179-2
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    Paper (German National Licenses)
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  • 2
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    The catalytic pathway of cytochrome p450cam at atomic resolution (2000)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2000-03-04
    Description: Members of the cytochrome P450 superfamily catalyze the addition of molecular oxygen to nonactivated hydrocarbons at physiological temperature-a reaction that requires high temperature to proceed in the absence of a catalyst. Structures were obtained for three intermediates in the hydroxylation reaction of camphor by P450cam with trapping techniques and cryocrystallography. The structure of the ferrous dioxygen adduct of P450cam was determined with 0.91 angstrom wavelength x-rays; irradiation with 1.5 angstrom x-rays results in breakdown of the dioxygen molecule to an intermediate that would be consistent with an oxyferryl species. The structures show conformational changes in several important residues and reveal a network of bound water molecules that may provide the protons needed for the reaction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schlichting, I -- Berendzen, J -- Chu, K -- Stock, A M -- Maves, S A -- Benson, D E -- Sweet, R M -- Ringe, D -- Petsko, G A -- Sligar, S G -- GM31756/GM/NIGMS NIH HHS/ -- GM33775/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2000 Mar 3;287(5458):1615-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Max Planck Institute for Molecular Physiology, Department of Physical Biochemistry, Otto Hahn Strasse 11, 44227 Dortmund, Germany. ilme.schlichting@mpi-dortmund.mpg.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10698731" target="_blank"〉PubMed〈/a〉
    Keywords: Camphor/*chemistry/*metabolism ; Camphor 5-Monooxygenase/*chemistry/*metabolism ; Catalysis ; Crystallization ; Crystallography, X-Ray ; Electrons ; Ferric Compounds/chemistry/metabolism ; Ferrous Compounds/chemistry/metabolism ; Hydrogen Bonding ; Hydroxylation ; Ligands ; Models, Molecular ; Molecular Conformation ; Oxygen/chemistry/metabolism ; Protein Conformation ; Protein Structure, Secondary ; Protons ; Pseudomonas putida/enzymology ; Water/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Geophysics. Hotspots come unstuck (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-08-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stock, Joann -- New York, N.Y. -- Science. 2003 Aug 22;301(5636):1059-60.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Seismo Lab, California Institute of Technology, Pasadena, CA 91125, USA. jstock@gps.caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12934000" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Motion to form a quorum (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-07-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Sungsu -- Wolanin, Peter M -- Yuzbashyan, Emil A -- Silberzan, Pascal -- Stock, Jeffry B -- Austin, Robert H -- F32 GM064228/GM/NIGMS NIH HHS/ -- R01 HG001506/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 11;301(5630):188.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Princeton University, Princeton, NJ 08544, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12855801" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acids/metabolism ; Bacterial Proteins/metabolism ; Chemoreceptor Cells ; *Chemotaxis ; Colony Count, Microbial ; Escherichia coli/genetics/growth & development/*physiology ; Escherichia coli Proteins/metabolism ; Homoserine/*analogs & derivatives/metabolism ; Lactones/metabolism ; Luminescence ; Membrane Proteins/metabolism ; Receptors, Cell Surface/metabolism ; Silicone Elastomers ; Vibrio/growth & development/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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