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  • 1
    Electronic Resource
    Electronic Resource
    An enveloped cross rotation function (1995)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 28 (1995), S. 834-836 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A procedure has been developed for the computation of the cross rotation function in the initial step of molecular replacement. This procedure involves the truncation of the model Patterson map by means of an envelope which follows the shape of this Patterson. Test calculations carried out using bovine phospholipase A2 as the search model and a mutant porcine phospholipase A2 data set as the target crystal with this enveloped cross rotation function indicate that the resulting orientation is nearly as accurate as that found after Patterson correlation refinement of the solution of the cross rotation function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S002188989501096X
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    DEMON/ANGEL: a suite of programs to carry out density modification (1995)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 28 (1995), S. 347-351 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The DEMON/ANGEL suite of computer programs has been developed to carry out density modification by non-crystallographic symmetry-averaging, solvent-flattening and histogram-mapping techniques. This suite consists of programs that allow molecular envelopes to be defined and modified, non-crystallographic symmetry operators to be refined either within one crystal form or between several crystal forms, and iterative density modification to be carried out, including non-crystallographic symmetry averaging of electron densities within or between crystal forms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889894012355
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    Paper (German National Licenses)
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