KRT31 KRT31 Keratin, type I cuticular Ha1 is a protein that in humans is encoded by the "KRT31" gene. The protein encoded by this gene is a member of the keratin gene family. As a type I hair keratin, it is an acidic protein which heterodimerizes with type II keratins to form hair and nails. The type I hair keratins are clustered in a region of chromosome 17q12-q21 and have the same direction of transcription. Model organisms have been used in the study of KRT31 function. A conditional knockout mouse line called "Krt31" was generated at the Wellcome Trust Sanger Institute.
Artificial nails can also be a risk when nails are applied by a disreputable nail salon that doesn't follow sanitary practices. There is concern over the flammability of ingredients used to make acrylic nails. It is suggested that they be kept at a distance from hair straighteners, dryers or curling irons, as well as from heat and flames when cooking, in order to avoid potential flame hazards. From an occupational health standpoint, there could be hazards to nail salon workers who are exposed to the chemical fumes from artificial nails during their entire work shift. Ethyl methacrylate can be used for artificial