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  • 1
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    Dopamine-beta-hydroxylase activity and homovanillic acid in spinal fluid of schizophrenics with brain atrophy (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-27
    Description: Schizophrenic patients with high ventricle brain ratios and cortical brain atrophy, as shown by computerized tomography, had decreased spinal fluid concentrations of homovanillic acid and dopamine-beta-hydroxylase activity. These decreased cerebral spinal fluid concentrations in patients with brain atrophy support the proposal of disturbed noradrenaline and dopamine neurotransmission in a subgroup of schizophrenic patients.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉van Kammen, D P -- Mann, L S -- Sternberg, D E -- Scheinin, M -- Ninan, P T -- Marder, S R -- van Kammen, W B -- Rieder, R O -- Linnoila, M -- New York, N.Y. -- Science. 1983 May 27;220(4600):974-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6133351" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Animals ; Antipsychotic Agents/adverse effects ; Atrophy ; Brain/metabolism/*pathology ; Dopamine/metabolism ; Dopamine beta-Hydroxylase/*cerebrospinal fluid ; Homovanillic Acid/*cerebrospinal fluid ; Humans ; Middle Aged ; Phenylacetates/*cerebrospinal fluid ; Rats ; Schizophrenia/*cerebrospinal fluid ; Tomography, X-Ray Computed
    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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    Inhibition of invasion of epithelial cells by Tiam1-Rac signaling (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-12-31
    Description: Tiam1 encodes an exchange factor for the Rho-like guanosine triphosphatase Rac. Both Tiam1 and activated RacV12 promote invasiveness of T lymphoma cells. In epithelial Madin-Darby canine kidney (MDCK) cells, Tiam1 localized to adherens junctions. Ectopic expression of Tiam1 or RacV12 inhibited hepatocyte growth factor-induced scattering by increasing E-cadherin-mediated cell-cell adhesion accompanied by actin polymerization at cell-cell contacts. In Ras-transformed MDCK cells, expression of Tiam1 or RacV12 restored E-cadherin-mediated adhesion, resulting in phenotypic reversion and loss of invasiveness. These data suggest an invasion-suppressor role for Tiam1 and Rac in epithelial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hordijk, P L -- ten Klooster, J P -- van der Kammen, R A -- Michiels, F -- Oomen, L C -- Collard, J G -- New York, N.Y. -- Science. 1997 Nov 21;278(5342):1464-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9367959" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/metabolism ; Animals ; Cadherins/metabolism ; *Cell Adhesion ; Cell Line ; Cell Line, Transformed ; Cell Movement ; Cell Transformation, Neoplastic ; Cytoplasm/metabolism ; Epithelial Cells/*cytology/metabolism ; GTP-Binding Proteins/*metabolism ; Hepatocyte Growth Factor/pharmacology ; Intercellular Junctions/*metabolism ; *Neoplasm Invasiveness ; Phenotype ; Proteins/genetics/*metabolism ; Signal Transduction ; rac GTP-Binding Proteins
    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
    The nifH promoter region of Rhizobium leguminosarum: nucleotide sequence and promoter elements controlling activation by NifA protein
    Amsterdam : Elsevier
    Gene 87 (1990), S. 31-36 
    Details
    ISSN: 0378-1119
    Keywords: Recombinant DNA ; consensus sequence ; multicopy inhibition ; nitrogen fixation ; pea ; pseudo promoter
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0378-1119(90)90492-A
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  • 4
    Electronic Resource
    Electronic Resource
    Bacteroid-encoded proteins are secreted into the peribacteroid space by Rhizobium leguminosarum (1988)
    Springer
    Plant molecular biology 11 (1988), S. 183-190 
    Details
    ISSN: 1573-5028
    Keywords: pea ; peribacteroid space ; protein excretion ; Rhizobium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Bacteroids of Rhizobium leguminosarum in root nodules of Pisum sativum are enclosed by a plant-derived peribacteriod membrane (PBM). The contents of the interstitial peribacteroid space (PBS) between bacteroid membrane and PBM were isolated by a controlled osmotic shock of PBM-enclosed bacteroids and analysed by two-dimensional gel electrophoresis. Silver staining revealed approximately 40 PBS polypeptides. Ex planta 35S-methionine labeling of PBM-enclosed bacteroids revealed that about 90% of the PBS proteins are synthesized by the bacteroid. Approximately 30% of the PBS polypeptides are common between the PBS and the periplasmic space of free-living bacteria; one (38kDa) PBS protein is also excreted by free-living bacteria in the bacterial culture medium. At least four bacteroid-encoded PBS polypeptides were clearly identified as symbiosis-specific.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015670
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  • 5
    Electronic Resource
    Electronic Resource
    Involvement of Rhizobium leguminosarum nodulation genes in gene expression in pea root hairs (1989)
    Springer
    Plant molecular biology 12 (1989), S. 157-167 
    Details
    ISSN: 1573-5028
    Keywords: deformation factor ; gene expression ; pea ; Rhizobium leguminosarum ; root hairs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The mRNA population in pea root hairs was characterized by means of in vitro translation of total root hair RNA followed by 2-dimensional gel electrophoresis of the translation products. Root hairs contain several mRNAs not detectable in total RNA preparations from roots. Most of these root hair-specific mRNAs occur in elongating root hairs at higher levels than in mature root hairs. The expression of some genes in pea root hairs is typically affected by inoculation with Rhizobium leguminosarum. One gene, encoding RH-42, is specifically induced while the expression of another gene, encoding RH-44, is markedly enhanced. Using R. leguminosarum mutants it was shown that the nodC gene is required for the induction and enhancement of expression of the RH-42 and RH-44 genes, respectively, while the Rhizobium chromosomal gene pss1, involved in exopolysaccharide synthesis, is not essential. After induction of the nod genes with apigenin the bacteria excrete into the culture medium a factor that causes root hair deformation. This deformation factor stimulates the expression of the RH-44 gene but does not induce the expression of the gene encoding RH-42.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00020501
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  • 6
    Electronic Resource
    Electronic Resource
    Comparison of soybean and pea ENOD40 cDNA clones representing genes expressed during both early and late stages of nodule development (1994)
    Springer
    Plant molecular biology 26 (1994), S. 487-493 
    Details
    ISSN: 1573-5028
    Keywords: pea ; early nodulin ; indeterminate nodule
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A pea cDNA clone representing the homologue of the soybean pGmENOD40-1 was isolated and characterized. At the nucleotide level both clones share 55% homology. Strikingly, the homology between the polypeptides derived from the pea and soybean ENOD40 cDNA sequences is only 14%. Despite this low homology Southern analyses revealed that the isolated pea cDNA clone represents the single pea ENOD40. In situ hybridizations showed that at early stages of nodule development and in mature nodules the expression pattern of pea ENOD40 is comparable to that of soybean ENOD40. Although ENOD40 show similar expression patterns in these two nodules, it is questionable whether the putative polypeptides have a similar function, since the homology is very low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039559
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