Keratin 6A is one of the 27 different type II keratins expressed in humans. Keratin 6A was the first type II keratin sequence determined.[5] Analysis of the sequence of this keratin together with that of the first type I keratin led to the discovery of the four helical domains in the central rod of keratins.[5] In humans Keratin 6A is encoded by the KRT6Agene.[6][7]
^Rosenberg M, Fuchs E, Le Beau MM, Eddy RL, Shows TB (1991). "Three epidermal and one simple epithelial type II keratin genes map to human chromosome 12". Cytogenet. Cell Genet. 57 (1): 33–8. doi:10.1159/000133109. PMID1713141.