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  • 1
    Electronic Resource
    Electronic Resource
    Organ of Corti-specific polypeptides: OCP-I and OCP-II (1980)
    Springer
    European archives of oto-rhino-laryngology and head & neck 226 (1980), S. 123-128 
    Details
    ISSN: 1434-4726
    Keywords: Organ of Corti ; Organ-specific polypeptides ; Two-dimensional polyacrylamide gel electrophoresis ; Guinea pig ; Rat ; Actin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two polypeptides, OCP-I and OCP-II, specific to the organ of Corti of the guinea pig and the rat, were detected by two-dimensional polyacrylamide gel electrophoresis. They were neither present in other inner ear structures, nor in other organs tested. The two polypeptides constitute a substantial portion of the total protein of the organ of Corti. Both inner and outer layer of the organ of Corti contained approximately equal amounts of OCP-I and OCP-II. The molecular weights of OCP-I and OCP-II are 37,000 and 22,500 daltons, respectively. The corresponding pI values are 4.9 and 5.1, respectively. In addition, actin and tubulin were detected in both layers of the organ of Corti.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00455126
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  • 2
    Electronic Resource
    Electronic Resource
    Dihydromatricariate-based triglycerides, glyceride ethers, and waxes in the australian soldier beetle,Chauliognathus lugubris (Coleoptera: Cantharidae) (1988)
    Springer
    Journal of chemical ecology 14 (1988), S. 411-423 
    Details
    ISSN: 1573-1561
    Keywords: Dihydromatricaria acid ; triglyceride ; (Z)-dec-8-ene-4,6-diynoic acid ; glyceride ethers ; waxes ; antifeedant ; Chauliognathus lugubris ; Coleoptera ; Cantharidae ; accessory glands ; defense
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The soldier beetleChauliognathus lugubris is shown to contain triglycerides and glyceride ethers of 8-dihydromatricaria acid, and waxes of the C12 homolog, of this acid, as well as the previously reported free acid. The triglycerides contain one, two, or three dihydromatricariate moieties, with any remaining positions esterified with normal fatty acids. The glyceride ethers were monostearyl ethers of glycerol esterified with dihydromatricaria acid and oleic or linoleic acid. The waxes, which also include a dihydromatricaria chromophore in the alcohol moiety, occur only in the females and are present in paired accessory glands in the abdomen. The ethers are restricted to females and appear to be associated with developing eggs. The triglycerides are much more abundant in females than males. Triglycerides, glyceride ethers, and waxes represent about 95% of the dihydromatricariate moiety (average, ca. 590 μg) in females with free acid the remainder; in males free acid is present to over 50% (ca. 22 μg) and the remainder is triglyceride (ca. 15 μg). Larvae contain mainly tridihydromatricariate-substituted triglyceride and a smaller quantity of the free acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013893
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    Paper (German National Licenses)
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