10mL of 5mM d-biotin solution for in-vivo biotinylation culture inductions involving the pBirAcm BirA over-expression plasmid and AviTagTM-protein fusion vectors, or very large scale BirA reactions that may require extra d-biotin.
Supplied as: 1 tube of d-biotin solution; 10mL at 5mM; store long term at -20°C