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  • 1
    Electronic Resource
    Electronic Resource
    A style-specific 120-kDa glycoprotein enters pollen tubes ofNicotiana alata in vivo (1996)
    Springer
    Sexual plant reproduction 9 (1996), S. 75-86 
    Details
    ISSN: 1432-2145
    Keywords: Hydroxyproline-rich glycoprotein ; Pistil ; Pollen tubes ; Self-incompatibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Pistils ofNicotiana alata (Link et Otto) contain an abundant, style-specific glycoprotein (120 kDa) that is rich in hydroxyproline and has both extensin-like and arabinogalactan-protein-like carbohydrate substituents. An antibody specific for the protein backbone of the glycoprotein was used to localise the glycoprotein in both unpollinated and pollinated pistils. The glycoprotein is evenly distributed in the extracellular matrix of the style transmitting tract of unpollinated pistils and, despite the presence of extensin-like carbohydrate substituents, is not associated with the walls of the transmitting tract cells. In pollinated pistils the 120-kDa glycoprotein is concentrated in the extracellular matrix adjacent to pollen tubes, and is also present in the cytoplasm and the cell walls of pollen tubes. Pollen tubes grown in vitro do not contain the 120-kDa glycoprotein unless it is added to the growth medium, suggesting that the 120kDa glycoprotein located in pistil-grown pollen tubes is derived from the extracellular matrix of the transmitting tract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02153054
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A style-specific 120-kDa glycoprotein enters pollen tubes of Nicotiana alata in vivo (1996)
    Springer
    Sexual plant reproduction 9 (1996), S. 75-86 
    Details
    ISSN: 1432-2145
    Keywords: Key words Hydroxyproline-rich glycoprotein ; Pistil ; Pollen tubes ; Self-incompatibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Pistils of Nicotiana alata (Link et Otto) contain an abundant, style-specific glycoprotein (120 kDa) that is rich in hydroxyproline and has both extensin-like and arabinogalactan-protein-like carbohydrate substituents. An antibody specific for the protein backbone of the glycoprotein was used to localise the glycoprotein in both unpollinated and pollinated pistils. The glycoprotein is evenly distributed in the extracellular matrix of the style transmitting tract of unpollinated pistils and, despite the presence of extensin-like carbohydrate substituents, is not associated with the walls of the transmitting tract cells. In pollinated pistils the 120-kDa glycoprotein is concentrated in the extracellular matrix adjacent to pollen tubes, and is also present in the cytoplasm and the cell walls of pollen tubes. Pollen tubes grown in vitro do not contain the 120-kDa glycoprotein unless it is added to the growth medium, suggesting that the 120-kDa glycoprotein located in pistil-grown pollen tubes is derived from the extracellular matrix of the transmitting tract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004970050013
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Immunogold labelling of estradiol receptor in MCF7 cells (1995)
    Springer
    Cell & tissue research 279 (1995), S. 445-452 
    Details
    ISSN: 1432-0878
    Keywords: Key words: Estradiol receptor ; Breast cancer cells ; Cell culture ; Ultrastructure ; Electron microscopy ; Immunohistochemistry ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. The distribution of estradiol receptor in serial sections of estradiol-deprived and estradiol-stimulated MCF7 cells was studied by using mouse monoclonal antibodies reacting with different domains of the receptor and goat-antimouse IgG/6 nm gold. In the nucleus and the cytoplasm of estradiol-deprived cells, the receptor was detected by all three monoclonals (13H2, HT 65 and MA1-310). The antibodies 13H2 and MA1-310 detected receptor associated to the microfilament bundles in the cytoplasm. Higher densities of antireceptor attachment to the nuclear areas were accompanied by a reduction in the attachment to the cytoplasm after estradiol stimulation of the cells. The results confirm earlier observations on the presence of cytoplasmic estrogen receptor in estradiol-deprived cells and support the premise of an es- tradiol-induced translocation of this ligand-dependent transcription regulator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050303
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  • 4
    Electronic Resource
    Electronic Resource
    Immunogold labelling of estradiol receptor in MCF7 cells (1995)
    Springer
    Cell & tissue research 279 (1995), S. 445-452 
    Details
    ISSN: 1432-0878
    Keywords: Estradiol receptor ; Breast cancer cells ; Cell culture ; Ultrastructure ; Electron microscopy ; Immunohistochemistry ; Human
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The distribution of estradiol receptor in serial sections of estradiol-deprived and estradiol-stimulated MCF7 cells was studied by using mouse monoclonal antibodies reacting with different domains of the receptor and goat-antimouse IgG/6 nm gold. In the nucleus and the cytoplasm of estradiol-deprived cells, the receptor was detected by all three monoclonals (13H2, HT 65 and MA1-310). The antibodies 13H2 and MA1-310 detected receptor associated to the microfilament bundles in the cytoplasm. Higher densities of antireceptor attachment to the nuclear areas were accompanied by a reduction in the attachment to the cytoplasm after estradiol stimulation of the cells. The results confirm earlier observations on the presence of cytoplasmic estrogen receptor in estradiol-deprived cells and support the premise of an estradiol-induced translocation of this ligand-dependent transcription regulator.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00318156
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    Paper (German National Licenses)
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