Cystinuria is characterised by –
(A) Generalised aminoaciduria (B) Systemic acidosis (C) Deposition of cystine crystals in Renal tubular cells (D) Recurrent urinary caliculi
(D) Cystinuria

It is an autosomal recessive disorder.
The disease is caused by a defective high affinity transporter for L-cystine and diabasic amioacids present in the proximal tubules.
It is characterize by recurrent kidney stone formation.