Protein

(pro'-le-in). In biology: I. The term introduced by Mulder to designate the hypothetic compound common to all albuminoids. It is now loosely used to denote the whole cla . Cf. Proteid. 2. A nitrogenous substance analogous to fibrin. It is formed artificially by the action of an alkaline hydrate on albumin, fibrin, or casein. The addition of acetic acid precipitates the protein as a gelatinous translucent deposit. P., Anthrax, a proteid obtained from cultures of bacillus anthracosis. It resembles my kop rote in in not containing sulphur. P. Bodies. See Proteids. P. Granules. See Aleurone . P., Myco-, Xencki's term for any one of the albuminous bodies contained within bacterial organisms.