Epidermal transglutaminase (TGase 3) is required for proper hair development, but not the formation of the epidermal barrier.

PLoS One · 2012 · PMC3319564 · PMID 22496784

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highly significantno p-value reported

TGase 3 is highly significant in hair development and in particular the cuticle, where it appears to have a unique role in stabilizing the trichohyalin network.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.