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  • 1
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    Tobacco MAP kinase: a possible mediator in wound signal transduction pathways (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-12-22
    Description: A complementary DNA encoding a mitogen-activated protein (MAP) kinase homolog has been isolated from tobacco plants. Transcripts of the corresponding gene were not observed in healthy tobacco leaves but began to accumulate 1 minute after mechanical wounding. In tobacco plants transformed with the cloned complementary DNA, trans inactivation of the endogenous homologous gene occurred, and both production of wound-induced jasmonic acid and accumulation of wound-inducible gene transcripts were inhibited. In contrast, the levels of salicylic acid and transcripts for pathogen-inducible, acidic pathogenesis-related proteins were increased upon wounding. These results indicate that this MAP kinase is part of the initial response of higher plants to mechanical wounding.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seo, S -- Okamoto, M -- Seto, H -- Ishizuka, K -- Sano, H -- Ohashi, Y -- New York, N.Y. -- Science. 1995 Dec 22;270(5244):1988-92.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Applied Biochemistry, University of Tsukuba, Ibaraki, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8533090" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Calcium-Calmodulin-Dependent Protein Kinases/chemistry/*genetics/metabolism ; Cyclopentanes/metabolism ; DNA, Complementary/genetics ; *Genes, Plant ; Molecular Sequence Data ; Oxylipins ; Phospholipases A/metabolism ; Phosphorylation ; Plant Proteins/metabolism ; Plants, Genetically Modified ; *Plants, Toxic ; Salicylates/metabolism ; Salicylic Acid ; *Signal Transduction ; Tobacco/*enzymology/genetics
    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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  • 2
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    An alternative menaquinone biosynthetic pathway operating in microorganisms (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-09-20
    Description: In microorganisms, menaquinone is an obligatory component of the electron-transfer pathway. It is derived from chorismate by seven enzymes in Escherichia coli. However, a bioinformatic analysis of whole genome sequences has suggested that some microorganisms, including pathogenic species such as Helicobacter pylori and Campylobacter jejuni, do not have orthologs of the men genes, even though they synthesize menaquinone. We deduced the outline of this alternative pathway in a nonpathogenic strain of Streptomyces by bioinformatic screening, gene knockouts, shotgun cloning with isolated mutants, and in vitro studies with recombinant enzymes. As humans and commensal intestinal bacteria, including lactobacilli, lack this pathway, it represents an attractive target for the development of chemotherapeutics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiratsuka, Tomoshige -- Furihata, Kazuo -- Ishikawa, Jun -- Yamashita, Haruyuki -- Itoh, Nobuya -- Seto, Haruo -- Dairi, Tohru -- New York, N.Y. -- Science. 2008 Sep 19;321(5896):1670-3. doi: 10.1126/science.1160446.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Biotechnology Research Center, Toyama Prefectural University, Toyama 939-0398, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18801996" target="_blank"〉PubMed〈/a〉
    Keywords: Archaea/enzymology/genetics/metabolism ; Bacteria/enzymology/genetics/*metabolism ; Biosynthetic Pathways/genetics ; Campylobacter jejuni/enzymology/genetics/metabolism ; Chorismic Acid/metabolism ; Cloning, Molecular ; Computational Biology ; Enzymes/genetics/metabolism ; *Genes, Bacterial ; Helicobacter pylori/enzymology/genetics/metabolism ; Molecular Sequence Data ; Mutagenesis ; Nucleosides/isolation & purification/*metabolism ; Recombinant Proteins/metabolism ; Streptomyces coelicolor/enzymology/genetics/*metabolism ; Thermus thermophilus/enzymology/genetics/metabolism ; Vitamin K 2/*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
    Electronic Resource
    Electronic Resource
    Structural evolution and microscopic interactions in a three-component amphiphilic microemulsion system (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 105 (1996), S. 3264-3277 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Structures and interaction parameters of a three-component amphiphilic microemulsion system consisting of n-decane, water, and an amphiphile AOT (sodium-di-2-ethylhexylsulfosuccinate) have been studied by means of small angle neutron scattering. The scattering curves are fitted with Teubuer and Strey's formula, from which three structural parameters are extracted; the average periodic distance D between the oil and water, the structural correlation length ξ, and the area aH per amphiphile molecule. The same data are further examined in terms of Gompper and Schick's formula, from which three interaction parameters are obtained; the strength of segregation J/T among the oil and water, the amphiphilicity L/T of the amphiphile toward the oil and water, and the critical surfactant volume fraction φcs. These interaction parameters have right order of magnitudes and their implications to structural evolution are discussed. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.471842
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  • 4
    Electronic Resource
    Electronic Resource
    Indoor air pollution by alkylphenols in Tokyo (2004)
    Oxford, UK : Munksgaard International Publishers
    Indoor air 14 (2004), S. 0 
    Details
    ISSN: 1600-0668
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0668.2004.00250.x
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  • 5
    Electronic Resource
    Electronic Resource
    ^1^3C nuclear magnetic resonance studies on bacteriochlorophyll a biosynthesis in Rhodopseudomonas spheroides S.
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 237 (1985), S. 72-79 
    Details
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0003-9861(85)90255-3
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  • 6
    Electronic Resource
    Electronic Resource
    ^1^3C-NMR evidence of bacteriochlorophyll a formation by the C"5 pathway in Chromatium
    Amsterdam : Elsevier
    Archives of Biochemistry and Biophysics 246 (1986), S. 192-198 
    Details
    ISSN: 0003-9861
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0003-9861(86)90463-7
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  • 7
    Electronic Resource
    Electronic Resource
    Temperature and pressure effects on structural formations in a ternary microemulsion (2000)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 33 (2000), S. 653-656 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Small angle neutron scattering experiments were conducted on a temperature-induced phase transition in a ternary microemulsion composed of AOT (dioctyl sulfosuccinate sodium salt), D2 O and n-decane and the results were compared with those of pressure-induced one. Although the static features of both the temperature- and the pressure-induced phase behaviour were similar, a temperature dependence of its characteristic repeat distance at high temperature was quite different from a pressure dependence of that at high pressure. Neutron spin echo experiments were also performed on both the phase transitions. The dynamics of the high temperature phase was different from that of the high pressure phase. These results indicated that the effect of pressure on the structural formation was different from that of temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889899013679
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  • 8
    Electronic Resource
    Electronic Resource
    Small-angle X-ray scattering study of the structure relaxation process in the dipalmitoylphosphatidylcholine(DPPC)–water system (1991)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 24 (1991), S. 843-846 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Small-angle X-ray scattering (SAXS) studies have been performed to investigate the ordering process of the Lβ', phase after being cooled from a metastable phase in the Pβ' temperature region in the dipalmitoylphosphatidylcholine(DPPC)–water system. The relaxation time for ordering of the structure in the Lβ' phase is about 100 min. It has been found that there is a minimum in the relaxation time as a function of the final quenching temperature. The relaxation time increases with decreasing temperature below around 298–K while it increases with increasing temperature above 298–K as a pretransition temperature is approached. It is considered that, in the former phenomenon, the relaxation is governed by diffusion and, in the latter, critical slowing down takes place. Earlier results of small-angle neutron scattering are in agreement with these SAXS results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889891004144
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  • 9
    Electronic Resource
    Electronic Resource
    ^1^3C-NMR spectra of chlorophylls a and b in green algae biosynthetically enriched with [1-^1^3C]glutamate
    Amsterdam : Elsevier
    FEBS Letters 153 (1983), S. 404-408 
    Details
    ISSN: 0014-5793
    Keywords: 5-Aminolevulinic acid ; Chlorophyll a ; Chlorophyll b ; Scenedesmus obliquus ; [1-^1^3C]glutamic acid ; ^1^3C-NMR
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0014-5793(83)80653-X
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  • 10
    Electronic Resource
    Electronic Resource
    Si doping and MBE growth of GaAs on tilted (111)A substrates
    Amsterdam : Elsevier
    Journal of Crystal Growth 111 (1991), S. 284-287 
    Details
    ISSN: 0022-0248
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0248(91)90986-F
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