Catalyzes a salvage reaction resulting in the formation of AMP, that is energically less costly than de novo synthesis. Defects in APRT are the cause of adenine phosphoribosyltransferase deficiency (APRTD); also known as 2,8-dihydroxyadenine urolithiasis. An enzymatic deficiency that can lead to urolithiasis and renal failure. Patients have 2,8-dihydroxyadenine (DHA) urinary stones. Belongs to the purine/pyrimidine phosphoribosyltransferase family. Note: This description may include information from UniProtKB.
Protein type: EC 184.108.40.206; Transferase; Nucleotide Metabolism - purine
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.