List of keratins expressed in the human integumentary system
# List of keratins expressed in the human integumentary system

There are many different keratin proteins normally expressed in the human integumentary system.

Keratin protein expression within the various layers and anatomic locations of the human integumentary system :

| Keratin type | Location of expression |
| - | - |
| 1 | Suprabasal epidermis of skin |
| 2 (2e) | Granular layer |
| 3 | Cornea |
| 4 | Suprabasal epidermis of mucosa |
| 5 | Basal layer |
| 6a | Suprabasal palmoplantar skin |
| 6b | Basal palmoplantar skin Nail bed Hair follicle |
| 7 | |
| 8 | |
| 9 | Suprabasal palmoplantar skin |
| 10 | Suprabasal epidermis |
| 11 | |
| 12 | Cornea |
| 13 | Suprabasal epidermis of mucosa |
| 14 | Basal layer |
| 15 | Basal layer of mucosa |
| 16 | Suprabasal palmoplantar skin |
| 17 | Basal palmoplantar skin |
| 18 | |
| 19 | Bulge region of the hair follicle |
| 20 | Merkel cell |
| 21 | |
