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  • 1
    Electronic Resource
    Electronic Resource
    Selbstorganisation biologischer Strukturen (1975)
    Springer
    Journal of molecular medicine 53 (1975), S. 997-1005 
    Details
    ISSN: 1432-1440
    Keywords: Hierarchical organization ; macromolecular assemblies ; symmetry viruses ; embryology ; molecular pathology ; Hierarchischer Aufbau ; Macromolecular assemblies ; Symmetrie ; Viren ; Embryologie ; Molekularpathologie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei Untersuchungen von makromolekularen Strukturen spielten Viren eine bedeutende Rolle. Struktur und Funktion in lebenden Systemen sind hierarchisch angeordnet. Ein wichtiges Ziel der Biologie ist die Herstellung einer Wechselbeziehung zwischen der Strukturhierarchie und der Kontrolle der Montage und folglich mit dem embryologischen Programm des Organismus.
    Notes: Summary Viruses played an important role in analysing macromolecular structures. Structure and function in living systems are arranged hierarchically. An important purpose of biology is to describe the correlation between the structural hierarchy and the observed assembly and to analyse the embryological program of the organism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01614301
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  • 2
    Electronic Resource
    Electronic Resource
    A hydrogen bond study in tobacco mosaic virus using Moessbauer spectroscopy (1986)
    Springer
    European biophysics journal 14 (1986), S. 37-41 
    Details
    ISSN: 1432-1017
    Keywords: Tobacco mosaic virus ; hydrogen bonds, 129iodine ; Moessbauer spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract The Moessbauer method was applied to obtain information on a suggested hydrogen bond in tobacco mosaic virus (TMV), between the hydroxyl group of Tyr 139 and a carboxyl oxygen of Glu 22 in a neighbouring subunit. Spectra of 129I were taken of 3,5-di-iodo-l-tyrosine as a free amino acid and in situ in TMV. The increase of the pK value of 3,5-di-iodo-l-tyrosine by 0.8 units at position 139 in TMV compared to the free value is a strong argument in favour of the existence of a hydrogen bond via the relevant hydroxyl group. The reported study demonstrates the surprising sensitivity of the observable Moessbauer parameters to details of the electronic configuration in the neighbourhood of the probe nucleus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260401
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  • 3
    Electronic Resource
    Electronic Resource
    The effect of disorientation on the intensity distribution of non-crystalline fibres. I. Theory (1974)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 30 (1974), S. 635-638 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The intensity function in reciprocal space is derived for the case of non-crystalline fibres with a Gaussian distribution of orientations. An expression is found relating the observed intensity function with the weighted integral along a circle of the intensity derived from the molecular structure factor. From this result in the case where the layer-line width is very small a correction factor may be derived which, if applied to the observed intensity, yields the intensity which would be obtained from a perfectly orientated fibre. The general problem of correcting for disorientation can only be treated by a numerical deconvolution procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739474001537
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  • 4
    Electronic Resource
    Electronic Resource
    An alternative method of solving the layer scaling equations of Hamilton, Rollett and Sparks (1966)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 20 (1966), S. 886-891 
    Details
    ISSN: 0001-5520
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0365110X66002007
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  • 5
    Electronic Resource
    Electronic Resource
    STRUCTURAL MECHANISM OF MUSCLE CONTRACTION (1999)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 68 (1999), S. 687-728 
    Details
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Notes: Abstract X-ray crystallography shows the myosin cross-bridge to exist in two conformations, the beginning and end of the "power stroke." A long lever-arm undergoes a 60o to 70o rotation between the two states. This rotation is coupled with changes in the active site (OPEN to CLOSED) and phosphate release. Actin binding mediates the transition from CLOSED to OPEN. Kinetics shows that the binding of myosin to actin is a two-step process which affects ATP and ADP affinity. The structural basis of these effects is not explained by the presently known conformers of myosin. Therefore, other states of the myosin cross-bridge must exist. Moreover, cryoelectronmicroscopy has revealed other angles of the cross-bridge lever arm induced by ADP binding. These structural states are presently being characterized by site-directed mutagenesis coupled with kinetic analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.biochem.68.1.687
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  • 6
    Electronic Resource
    Electronic Resource
    Structure of tobacco mosaic virus at 6.7 Å resolution (1975)
    [s.l.] : Nature Publishing Group
    Nature 254 (1975), S. 192-196 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The electron density distribution of tobacco mosaic virus has been determined to 6.7 Å resolution by analysis of the X-ray diffraction pattern given by oriented gels of the virus. This has been achieved by separation of overlapping Bessel function terms by a technique analogous to ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/254192a0
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  • 7
    Electronic Resource
    Electronic Resource
    Synchrotron Radiation as a Source for X-ray Diffraction (1971)
    [s.l.] : Nature Publishing Group
    Nature 230 (1971), S. 434-437 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Some preliminary results have been obtained with synchrotron radiation from the 7.5 GeV electron synchrotron Deutsches Elektronen - Synchrotron (DESY) in Hamburg as a source for X-ray ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/230434a0
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  • 8
    Electronic Resource
    Electronic Resource
    Crystallization of Transfer RNA (1968)
    [s.l.] : Nature Publishing Group
    Nature 219 (1968), S. 1222-1224 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A bacterial transfer RNA (tRNAFMet) has been obtained in micro-crystalline form. Its probable unit cell dimensions have been deduced from X-ray powder ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2191222a0
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  • 9
    Electronic Resource
    Electronic Resource
    Induced Changes in Orientation of the Cross-Bridges of Glycerinated Insect Flight Muscle (1965)
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 1276-1280 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MYOGENIC fibrillar insect flight muscle is known to perform considerable work by means of small-amplitude oscillations both in life1 and when glycerinated2. The structure of the muscle is exceptionally well ordered3"4. Electron microscope studies indicate that the ends of the myosin filaments are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2071276a0
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  • 10
    Electronic Resource
    Electronic Resource
    X-Ray Diffraction Studies of Muscle (1981)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physiology 43 (1981), S. 553-565 
    Details
    ISSN: 0066-4278
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ph.43.030181.003005
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