ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
An efficient algorithm is described for finding the maximum entropy density distribution under the constraint that (Σ |F|cos (2πh . r- φ)), where the sum is over a subset of reflections whose phase has been determined, is constant. This algorithm is combined with solvent flattening in a procedure for extending phases to higher resolution. A test of the procedure on the structure of ribonuclease A and its application to the determination of two previously unknown structures are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108767387010675
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