Gene: [02q35/CPS1] carbamoyl phosphate synthetase 1, mitochondrial; hyperammonemia II (due to carbamoyl phosphate synthetase 1 deficiency);

COM

Adcock-1984b provided a provisional assignment of the CPS1 gene to Chr 2p (the CPS2 gene is mapped to that region, see GEM:02p2/CAD). Summar-1995 and Hoshide-1995 reassigned the CPS1 gene to Chr 2q35."

FUN

[1] Carbamoyl phosphate synthetase 1 catalyzes the first committed step of waste nitrogen metabolism in the urea cycle.
[2] The reaction catalyzed: 2 ATP + NH(3) + CO(2) + H(2)O = = 2 ADP + orthophosphate + carbamoyl phosphate."

NOM

[1] The disease was previously referred to as 'hyperammonemia I'.
[2] In contrast to the generally accepted numbering of isoenzyme genes (those for cytoplasmic isoforms have number 1, and those for mitochondrial isoforms, number 2), the historical denotation, 1, was kept for the mitochondrial carbamoyl phosphate synthetase."

REF

PRO,LOC "Adcock MW &: Fed Proc, 43, 1726, 1984a
PRO,LOC "Adcock MW, O'Brien WE: JBC, 259, N21, 13471-13476, 1984b
PHE,TER "Batshaw &: New Engl J Med, 306, 1387-1392, 1982
PHE,TER "Batshaw &: New Engl J Med, 292, 1085-1090, 1975
PHE,TER "Brusilow &: New Engl J Med, 310, 1630-1634, 1984
PHE,FOG,PAT "Ebels EJ: Arch Dis Child, 47, 47-51, 1972
PHE,FOG,PAT "Farriaux &: Acta Paediatr Scand, 66, 529-534, 1977
PHE,FOG,PAT "Fearon ER &: Hum Genet, 70, 207-210, 1985
PHE,FOG,PAT "Freeman &: Arch Neurol, 23, 430-437, 1970
PHE,FOG,PAT "Gelehrter, Snodgrass: New Engl J Med, 290, 430-433, 1974
PHE,FOG,PAT "Granot &: Isr J Med Sci, 22, 463-465, 1986
PRO,SEQ,PAT "Haraguchi Y &: Gene, 107, N2, 335-340, 1991
PHE,FOG,PAT "Hommes &: Arch Dis Child, 44, 688-693, 1969
LOC "Hoshide R &: Genomics, 28, N1, 124-125, 1995
FUN,PEP,MEB "Jackson &: Annu Rev Genet, 20, 431-464, 1986
FUN,PEP,MEB "Lusty CJ: Eur J Biochem, 85, 373-383, 1978
PHE,FOG,PAT "McReynolds &: AJHG, 33, 345-353, 1981
PHE,FOG,PAT "Montagos &: Arch Dis Child, 53, 230-234, 1978
PRO,LOC "O'Brien &: AJHG, 35, A181, 1983
FUN,PEP,MEB "Pierson, Brien: JBC, 255, 7891-7895, 1980
LOC "Summar ML &: CCG, 71, N3, 266-267, 1995
PHE,FOG,PAT "Suzuki &: Eur J Pediatr, 145, 406-408, 1986
PHE,FOG,PAT "van der Heiden C &: Clin Genet, 23, 363-368, 1983

CLA

coding, basic

LOC

02 q35

MIM

MIM: 237300

EZN

ENZYME: 6.3.4.16