Alternative titles and symbols : Cystinuria with mitochondrial disease; Homozygous 2p16 deletion syndrome;
Included titles and symbols : Homozygous 2p21 deletion syndrome;
Inheritance : Autosomal recessive;
Molecular basis : 2p21del syndrome is a contiguous gene syndrome caused by 179kb deletion containing
the SLC3A1 (104614), PREPL (609557), PPM1B (603770), and C2orf34 (609559) genes; HCS is a contiguous gene syndrome caused by 23.8-75.5kb deletion containing the SLC3A1
(104614) and PREPL (609557) genes;
Laboratory abnormalities : Lactic acidemia (2p21del); Normal mitochondrial respiratory chain complex I-V (HCS); Transient neonatal hypocalcemia (2p21del); Transient neonatal hypoglycemia (2p21del); Increased urinary cystine, arginine, lysine, and ornithine (HCS and 2p21del); Normal lactate (HCS); Decreased mitochondrial respiratory chain complex (2p21del);