Unstaggered structures

McLachlan, A. D., and Stewart, M. (1975). Tropomyosin coiled-coil interactions Evidence for an unstaggered structure. J. Mol. Biol. 98, 293-304. 

The one-chain unit cell prescribes an unstaggered array of parallel chains and thus the rearrangement from the original cellulose I structure that has occurred is very similar to that which occurs on formation of the ethylenediamine complex. A one chain unit cell is also seen for the 1,2-diaminopropane complex, and this structure appears to be similar, except for minor modifications of the a and b dimensions. 

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