Before revision:  Because evidence for two distinct mechanisms can be gleaned both from crystal contacts and from precursor macromolecular solution conditions , the model offers  avenues for optimizing crystallization screens based on partial structural information or even from primary sequence analyses .
After revision:  Because evidence for two distinct mechanisms can be gleaned both from crystal contacts and from precursor macromolecular solution conditions , the model offers future avenues for optimizing crystallization screens based on partial structural information or even from primary sequence analyses .