<unk>  is a rare metabolic disorder that causes serious neurological problems in males due to a malfunction of the PRPP synthetase 1 enzyme.<unk>  is part of a spectrum of PRPS-1 related disorders with reduced activity of the enzyme that includes Charcot–Marie–Tooth disease and X-linked non-syndromic sensorineural deafness.
Arts syndrome
Saal Greenstein syndrome
Crandall syndrome
Havana syndrome
Mietens syndrome
PAPA syndrome
Currarino syndrome
Bruck syndrome