Desc: |
The directed movement of biotin into, out of, within or between cells by means of some external agent such as a transporter or pore. Biotin is cis-tetrahydro-2-oxothieno(3,4-d)imidazoline-4-valeric acid; the (+) enantiomer is very widely distributed in cells and serves as a carrier in a number of enzymatic beta-carboxylation reactions. |