Adenine Phosphoribosyltransferase

**Definition:** An enzyme catalyzing the formation of AMP from adenine and phosphoribosylpyrophosphate. It can act as a salvage enzyme for recycling of adenine into nucleic acids. EC 2.4.2.7.

**Tree numbers:** - D08.811.913.400.725.100

**Synonyms:** - AMP Pyrophosphorylase - APRTase - Transphosphoribosidase