Table 3.

Urea Cycle Disorders: Molecular Genetics

Disease NameGeneProteinSelect OMIM Links
Carbamoylphosphate synthetase I deficiency CPS1 Carbamoyl-phosphate synthase 608307
237300
Ornithine transcarbamylase deficiency OTC Ornithine carbamoyltransferase 300461
311250
ASS1 deficiency (citrullinemia type I) ASS1 Argininosuccinate synthase 603470
215700
ASL deficiency (argininosuccinic aciduria) ASL Argininosuccinate lyase 608310
207900
Arginase deficiency ARG1 Arginase-1 608313
207800
NAGS deficiency NAGS N-acetylglutamate synthase 608300
237310
Ornithine translocase (ORNT1) deficiency SLC25A15 Ornithine Transporter (ORNT1) 603861
238970
Citrin deficiency SLC25A13 Citrin 603859
605814
603471

From: Urea Cycle Disorders Overview

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