6.4.1.5	biotin	enzyme contains 1 mol of biotin per 148000-157000 g of protein	
6.4.1.5	biotin	prosthetic group	
6.4.1.5	biotin	biotin-dependent enzyme	
6.4.1.5	biotin	biotin-dependent enzyme, only the 75 kDa subunit is biotinylated