mutase

[ myōōtās, -tāz ]

n.

Any enzyme that catalyzes the rearrangement of atoms within a molecule, especially one that causes the transfer of a phosphate group from one carbon atom to another.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.