We have developed computational methods to predict the structure of homomeric coiled-coils, as well as the structure of alternative oligomerization states for the same sequence. These structures are the basis of energy calculations aimed at predicting the oligomerization state directly from protein sequence. We tested the method on 32 homomeric coiled-coils with different oligomerization states and known structures. The the minimum energy structures for each alternative oligomerization state (C2,C3,C4,D2 and C5 point group symmetry) can be downloaded here.