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  • Protein  (3)
  • Springer  (3)
  • American Geophysical Union (AGU)
  • 2005-2009
  • 2000-2004
  • 1985-1989
  • 1975-1979  (3)
Collection
Keywords
Publisher
  • Springer  (3)
  • American Geophysical Union (AGU)
Years
  • 2005-2009
  • 2000-2004
  • 1985-1989
  • 1975-1979  (3)
  • 1990-1994  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Lipid and protein histochemistry of enamel — Effects of fluoride (1977)
    Springer
    Calcified tissue international 24 (1977), S. 119-125 
    Details
    ISSN: 1432-0827
    Keywords: Protein ; Lipid ; Histochemistry ; Enamel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Staining reactions for a number of histochemical procedures for lipophilic staining and protein were studied in the enamel matrix along the length of rat incisors. Sudan Black gave a positive stain across the whole thickness of very early enamel (up to 30 μm) but this staining only continued as a narrow band close to the ameloblasts as the enamel matured. A variety of tests for protein produced almost identical staining patterns in enamel matrix up to 100 μm thick. Since the pattern of “lipid” staining persisted, after using a number of procedures which could normally be expected to remove lipid, it is suggested that Sudan Black positive staining may be due to lipophilic protein rather than lipid itself. Fluoride did not significantly alter the staining reactions for “lipid” and protein but did proceduce matrix which was much more effectively stained by cross-linking agents FFDNB and FF sulphene.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223305
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  • 2
    Electronic Resource
    Electronic Resource
    Plasma proteins present in human cortical bone: Enrichment of theαHS-glycoprotein (1977)
    Springer
    Calcified tissue international 22 (1977), S. 27-33 
    Details
    ISSN: 1432-0827
    Keywords: Protein ; Bone ; Blood plasma ; Dentine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract The spectrum of plasma proteins present in human cortical bone and permanent dentine has been determined. One plasma glycoprotein, theαHS-glycoprotein, was found to be present at a high concentration in both bone and dentine and was shown to be concentrated in the mineralized tissues with respect to the other plasma proteins by factors of between 30 and 100. In this respect theαHS-glycoprotein is analogous to the G2B-glycoprotein and α-glycoprotein of bovine and rabbit b one, respectively. The binding ofαHS-glycoprotein and albumin to calcium phosphates generated within serum samples has been studied at different serum: precipitate ratios. In each case all theαHS-glycoprotein was removed from the samples and theαHS-glycoprotein was concentrated with respect to albumin by factors ranging from 370 at the highest serum: precipitate ratio to 25 at the lowest ratio. The plasmaαHS-glycoprotein concentrations of patients with Paget's disease of bone were shown to be substantially lower than the normal range, with significant negative correlation between theαHS-glycoprotein concentration and the plasma alkaline phosphatase activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02010343
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  • 3
    Electronic Resource
    Electronic Resource
    Isolation and characterization of gas vesicles from Microcyclus aquaticus (1977)
    Springer
    Archives of microbiology 112 (1977), S. 133-140 
    Details
    ISSN: 1432-072X
    Keywords: Gas vesicles ; Gas vacuoles ; Protein ; Membrane composition ; Microcyclus aquaticus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Intact gas vesicles of Microcyclus aquaticus S1 were isolated by using centrifugally accelerated flotation of vesicles and molecular sieve chromatography. Isolated gas vesicles were cylindrical organelles with biconical ends and measured 250×100 nm. The gas vesicle membrane was composed almost entirely of protein; neither lipid nor carbohydrate was detected, although one mole of phosphate per mole of protein was found. Amino acid analysis indicated that the protein contained 54.6% hydrophobic amino acid residues, lacked sulfur-containing amino acids, and had a low aromatic amino acid content. The protein subunit composition of the vesicles was determined by gel electrophoresis in (i) 0.1% sodium dodecyl sulfate at pH 9.0 and (ii) 5 M urea at pH 2.0. The membrane appeared to consist of one protein subunit of MW 50 000 daltons. Charge isomers of this subunit were not detected on urea gels. Antiserum prepared against purified gas vesicles of M. aquaticus S1 cross-reacted with the gas vesicles of all other gas vacuolate strains of M. aquaticus, as well as those of Prosthecomicrobium pneumaticum, Nostoc muscorum, and Anabaena flos-aquae, indicating that the gas vesicles of these widely divergent organisms have some antigenic determinants in common.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429325
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