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List of cutaneous conditions caused by mutations in keratins
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There are many different keratin proteins normally expressed in the human integumentary system. Mutations in keratin proteins in the skin can cause disease.
| Defective keratin type | Condition(s) |
|---|---|
| 1 | Epidermolytic hyperkeratosis |
| Ichthyosis hystrix of Curth–Macklin | |
| Diffuse nonepidermolytic palmoplantar keratoderma (Unna–Thost keratoderma) | |
| Diffuse epidermolytic palmoplantar keratoderma (Vörner keratoderma) | |
| 2 (2e) | Ichthyosis bullosa of Siemens |
| 3 | Meesmann corneal dystrophy |
| 4 | White sponge nevus |
| 5 | Epidermolysis bullosa simplex |
| Dowling–Degos' disease | |
| Olmsted syndrome | |
| 6a | Pachyonychia congenita type I |
| 6b | Pachyonychia congenita type II |
| 7 | |
| 8 | |
| 9 | Diffuse epidermolytic palmoplantar keratoderma (Vörner keratoderma) |
| 10 | Epidermolytic hyperkeratosis |
| Ichthyosis with confetti | |
| Ichthyosis hystrix | |
| 11 | |
| 12 | Meesmann corneal dystrophy |
| 13 | White sponge nevus |
| 14 | Epidermolysis bullosa simplex |
| Naegeli–Franceschetti–Jadassohn syndrome | |
| Dermatopathia pigmentosa reticularis | |
| Olmsted syndrome | |
| 15 | |
| 16 | Pachyonychia congenita type I |
| 17 | Pachyonychia congenita type II |
| Steatocystoma multiplex | |
| Vellus hair cyst | |
| 81 | Monilethrix |
| 82 | Alopecia areata |
| 83 | Monilethrix |
| 85 | Pure hair–nail type of ectodermal dysplasia |
| 86 | Monilethrix |
Of note, other structural proteins in the epidermis of the skin that are closely related to keratins may also cause disease if mutated. Examples include:
| Defective protein | Conditions(s) |
|---|---|
| Loricrin | Vohwinkel syndromeVohwinkel syndrome may be caused by mutations in either loricrin or GJB2. This is an example of locus heterogeneity. |
| Progressive symmetric erythrokeratodermia | |
| Filaggrin | Ichthyosis vulgaris |
| Atopic dermatitis |
Footnotes
References
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