Fig 4. Domain and conservation analysis of keratin 78.
Protein sequence and domain structure of KRT78, a type II keratin (A). Primary protein sequence alignment of KRT78 across species showing conservation in the coiled-coil alpha helical domains and the flanking non-helical head and tail domains (B). Cladogram showing the evolutionary relationship among all type II epithelial keratins (constructed using maximum likelihood) (C).