0 a strong natural protein, the main substance that forms hair, nails, hoofs, horns, feathers, etc. -- 角蛋白(一種堅韌、無色的天然蛋白質,是髮、甲、蹄、角、羽毛等的主要組成物)
These data indicate that these keratin intermediate filament may have a ' hollow ' core.
It remains to be seen whether this observation is a general one for all intermediate filaments or whether it relates specifically to the trichocyte keratins.
Conservation of the structure of keratin intermediate filaments : molecular mechanism by which different keratin molecules integrate into preexisting keratin intermediate filaments during differentiation.
The cellular and molecular biology of keratins: beginning a new era.
The protein contained a glycinerich region with similarity to host keratins and collagen.
However, in the 1970s two other sequences, both from sheep wool keratins were characterized.
So far no discussion has been made of the trichocyte keratins.
Similarly, in keratinocytes, keratin molecules containing one particular chain pair will ultimately be replaced by molecules comprising a different chain pair as differentiation proceeds.