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  • Articles: DFG German National Licenses  (4)
  • 1H NMR  (2)
  • Glutenins  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Interaction between genes controlling a new group of glutenin subunits in bread wheat (1987)
    Springer
    Theoretical and applied genetics 74 (1987), S. 459-465 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; Glutenins ; Genetic interaction ; Linkage mapping ; SDS-PAGE
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary One-dimensional sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) of reduced total protein extracts from the endosperm of hexaploid wheat revealed a new set of faintly-stained bands, having slower electrophoretic mobility than the high-molecular-weight (HMW) glutenin subunits. These new bands have been termed the E group of glutenin subunits. Analysis of aneuploid stocks of Chinese Spring wheat has shown that three of the E bands, in order of increasing electrophoretic mobility, are controlled by genes on the short arms of chromosomes 1B, 1A and 1D, respectively. The E bands are expressed only in the presence of the long arm of chromosome 1B indicating an interaction between two or more genes involved in their production in wheat endosperm. The gene on the short arm of chromosome 1D controlling an E subunit recombined freely with Tri-D1 and the centromere but not at all with Gli-D1, indicating additional complexity at the Gli-DI locus in wheat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00289821
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The cumulative effect of allelic variation in LMW and HMW glutenin subunits on dough properties in the progeny of two bread wheats (1989)
    Springer
    Theoretical and applied genetics 77 (1989), S. 57-64 
    Details
    ISSN: 1432-2242
    Keywords: Wheat flour protein content ; Gliadins ; Glutenins ; Extensograph tests ; Bread-making quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effects of allelic variation at Gli-A1, GluA3 and Glu-A1 loci coding for gliadins, LMW glutenin subunits and HMW glutenin subunits on dough resistance and extensibility was analysed in 56 F2-derived F6 families from a cross between bread wheats MKR(111/8) and ‘Kite’. Extensograph data from two sites giving widely different flour protein levels (approximately 7% and 14%) revealed that the Glu-A3m and Glu-A1b alleles were associated with larger effects on dough resistance and extensibility than the null alleles Glu-A3k and GluA1c, respectively, and moreover, their effects were additive at both protein levels. The effect of the LMW glutenin allele Glu-A3m on both dough resistance and dough extensibility was relatively larger than that of the HMW glutenin allele Glu-A1b at both sites. Variation at the Gli-A1 locus did not appear to contribute towards dough strength. The results also showed the large effect of flour protein content on dough properties.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00292316
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ring A conformation in steroids. 2For Part I, see reference 13. - NMR study of C-2 monomethyl- and dimethyl-substituted 5α-androstan-3-ones (1987)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 25 (1987), S. 730-733 
    Details
    ISSN: 0749-1581
    Keywords: 1H NMR ; 13C NMR monomethyl/dimethyl 5α-androstan-3-ones ; Steroid ; Ring A conformation ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Ring A proton shifts and couplings and 13C shifts of all carbons are given for 17β-acetoxy-2α-methyl- and 17β-methoxy-2β-methyl-5α-androstan-3-one and 2,2-dimethyl-17β-methoxy-5α-androstan-3-one. It was concluded that the 2β-methyl derivative exists with ring A in a regular chair conformation while the 2β-methyl derivative exists with ring A in an inverted boat conformation with C-2 and C-5 at the bow/stern positions. The data for 2,2-dimethyl-17β-methoxy-5α-androstan-3-one suggest an equilibrium of these two conformers.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260250814
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Ring a conformation in steroids. 3For Part 1, see Ref. 30; For Part 2, see Ref. 31. - Cyclosteroids and cyclopropanosteroids (1995)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 33 (1995), S. 529-540 
    Details
    ISSN: 0749-1581
    Keywords: steroids ; 1H NMR ; 13C NMR ; coupling constants ; conformational analysis ; 1D TOCSY ; NOE ; cyclosteroids ; cyclopropanosteroids ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Proton and carbon NMR data are provided for 21 ring A and ring B cyclosteroids and cyclopropano (or methylene) steroids. Shift assignments were made using standard 2D NMR techniques, while ring A proton subspectra were extracted with a 1D TOCSY experiment. Coupling constants were obtained from iterative spin system simulation of these sub-spectra. Ring A conformations were determined from the two- and three-bond proton-proton couplings and NOE measurements. The utility and limitations of extended Karplus-type equations, the effect of cyclopropyl groups on vicinal and geminal couplings and cyclopropane-induced chemical shifts are discussed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260330707
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    Paper (German National Licenses)
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