| Popis: |
The crystal symmetry and Patterson projections of a monoclinic, pseudo-orthorhombic form of horse myoglobin crystal are described (true symmetry P21, pseudo-symmetry P22121). This unit cell is very closely related to the monoclinie form of the same protein previously described: their a and b dimensions are virtually the same, while c in the new form has double the value of c sin fl in the monoclinie form. The Patterson projections are also closely related to those of the monoclinic form. These results make it possible to obtain a general idea of the relationships between the two forms and to make plausible suggestions about the mode of packing of the molecules. |
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