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Hard α-keratin has a universal molecular structure with a specific superlattice arrangement.

K39 and K40 are the last keratins expressed in hair development, completing the hair keratin catalog.

Spiny keratoderma may be ectopic hair formation on palms and soles.

Four specific keratins in hair follicles help understand hair structure and function.

Human hair keratin genes are similar to mouse genes and are specifically expressed in hair follicles.

Keratin 17 is crucial for cell growth in wound healing by aiding protein synthesis.

Hair structural proteins are synthesized sequentially in specific cells, offering a new way to study hair proteins and defects.

Hair follicles form hard α-keratin filaments in four steps, showing structural differences.

KAP8.1 protein is crucial for hair structure and interacts with keratin 85.

Marsupial hair structure and keratin distribution are similar to placental mammals.

The hair follicle structure is more complex than thought, with new findings on protein formation.

The document concludes that the human keratin gene cluster is complex, with a need for updated naming to reflect over 50 functional genes important for hair and skin biology.

K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.

KRTAP genes evolved early in mammals, leading to diverse hair traits.

Keratin gene expression helps understand different types of skin cells and their development, and should be used carefully as biological markers.

A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.

Keratin K14 expression varies between hair follicles and epidermis, affecting cell differentiation.

Mutations in specific keratin genes cause improper hair structure in mice due to faulty keratin protein assembly.

K15 gene is mainly active in the basal layers of hair follicles and epithelia, aiding early skin cell development.

Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.

Hair germ cells differ from epidermal cells in keratin expression, and specific keratins form after hair differentiation.

Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.

Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.

Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.

PEG and keratin scaffolds can effectively deliver protein drugs by controlling release based on pH levels.

Trichohyalin is a protein in hair follicles that helps form hair filaments.