Type I hair keratin 

Type I hair keratin is one of the two types of hair keratin. It is an acidic protein which heterodimerizes with type II hair keratins to form hair and nails.

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v • d • e
Protein: scleroproteins
Extracellular matrix
1-12
type I (COL1A1, COL1A2) · type II (COL2A1) · type III · type IV (COL4A1, COL4A2, COL4A3, COL4A4, COL4A5, COL4A6) · type V (COL5A1, COL5A2, COL5A3) · type VI (COL6A1, COL6A2, COL6A3) · type VII (COL7A1) · type VIII (COL8A1, COL8A2) · type IX (COL9A1, COL9A2, COL9A3) · type X (COL10A1) · type XI (COL11A1, COL11A2) · type XII (COL12A1)
13-29
Other
Keratin/Cytokeratin
type I (10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)

type II (1, 2A, 3, 4, 5, 6A, 7, 8, 9)

Hair (Type I, Type II) · Beta
Other