Probability distribution of the four-phase structure invariants of isomorphously related structure factors and its applications
Data(s) |
1999
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Resumo |
The probability distribution of the four-phase structure invariants (4PSIs) involving four pairs of structure factors is derived by integrating the direct methods with isomorphous replacement (IR). A simple expression of the reliability parameter for 16 types of invariant is given in the case of a native protein and a heavy-atom derivative. Test calculations on a protein and its heavy-atom derivative using experimental diffraction data show that the reliability for 4PSI estimates is comparable with that for the three-phase structure invariants (3PSIs), and that a large-modulus invariants method can be used to improve the accuracy. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Liu YS;Hu NH;Wang SY.Probability distribution of the four-phase structure invariants of isomorphously related structure factors and its applications,ACTA CRYSTALLOGRAPHICA SECTION A,1999,55(2):396-398 |
Palavras-Chave | #INTEGRATING DIRECT-METHODS #REPLACEMENT TECHNIQUES #THEORETICAL BASIS |
Tipo |
期刊论文 |