di·phos·pho·trans·fer·ase (di-fos″fo-transґfər-ās) [EC 2.7.6] any member of a sub-subclass of enzymes of the transferase class that catalyze the transfer of pyrophosphate (diphosphate) groups from one molecule to another. Called also pyrophosphotransferase.

Medical dictionary. 2011.

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