Hair coloring by lay people may not be sufficiently accurate. Hair that has been damaged by excessive exposure to chemicals is considered "over-processed". This results in dry, rough and fragile hair. In extreme cases, the hair can be so damaged that it breaks off entirely. The main cases of hair breakage are: Lack of moisture and oils, poor diet, stress, over processing or illness. Skin and fingernails are made of a similar type of keratinized protein as hair. That means that drips, slips and extra hair tint around the hairline can result in patches of discolored skin. This is more common with
HspQ protein domain could occurs through binding of YccV itself to fully or hemimethylated DNA. In addition, studies have identified the "yccV" gene as one of three insertion sites in mini-Tn10 which suppress dnaA46 thermosensitivity. This protein domain is thought to have a SH3-like barrel structure. Additionally, the structure of a hypothetical protein in this family has been solved and it forms a beta sheet structure with a terminating alpha helix. HspQ forms a stable homodimer in solution and can form homomultimers consisting of about four monomers. The theoretical molecular mass of the HspQ protein were calculated to be 11.8 kDa. It is