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Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.

Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.

Hair keratin-associated proteins are essential for strong hair, with over 80 genes showing specific patterns and variations among people.

The B2 genes are crucial for hair growth in rats.

S100A3 protein is crucial for hair shaft formation in mice.

Small proline-rich proteins and trichohyalin help make epithelial tissues tougher and more flexible.

Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.

A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.

Cysteine helps maintain keratin production in skin cells even when iron is low.

Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.

Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.

S100A4 and S100A6 proteins may activate stem cells for hair follicle regeneration and could be potential targets for hair loss treatments.

Adenosine helps hair grow longer and stronger by boosting certain growth factors and signaling pathways.

Keratin proteins are crucial for hair structure and strength.

Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.

The study found that immune responses disrupt hair growth cycles, causing hair loss in alopecia areata.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Hair and wool have diverse keratins and keratin-associated proteins.

Keratin-associated proteins are part of the developing hair fiber cuticle.

Harlequin mutant mice have hair loss due to low AIF protein levels and retroviral element activity.

KAP-depleted hair causes less immune response and is more biocompatible for implants.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.

Hair stiffness is higher when it has more para-like cortical cells.

Understanding wool keratin-associated proteins in sheep can help improve wool quality through selective breeding.

Sheep and goat hair fibers are complex due to keratin-associated proteins, which are important for fiber properties and growth.

The study found nine new hair protein genes in human hair follicles.

Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.

PAD3 plays a key role in hair and skin protein structure and may be linked to skin diseases.

RSPO1 mutations in certain patients lead to skin cells that don't develop properly and are more likely to become invasive, increasing the risk of skin cancer.

Keratin from hair and wool is used in medical materials for healing and drug delivery.