MitoProteome Database

MT000045

UniProt Annotations

Entry Information
Gene Nameargininosuccinate synthase 1
Protein EntryASSY_HUMAN
UniProt IDP00966
SpeciesHuman
Comments
Comment typeDescription
Catalytic Activity ATP + L-citrulline + L-aspartate = AMP + diphosphate + N(omega)-(L-arginino)succinate.
Disease Citrullinemia 1 (CTLN1) [MIM:215700]: The classic form of citrullinemia, an autosomal recessive disease characterized primarily by elevated serum and urine citrulline levels. Ammonia intoxication is another manifestation. It is a disorder of the urea cycle, usually manifesting in the first few days of life. Affected infants appear normal at birth, but as ammonia builds up in the body they present symptoms such as lethargy, poor feeding, vomiting, seizures and loss of consciousness. Less commonly, a milder form can develop later in childhood or adulthood. {ECO:0000269|PubMed:11708871, ECO:0000269|PubMed:11941481, ECO:0000269|PubMed:12815590, ECO:0000269|PubMed:14680976, ECO:0000269|PubMed:16475226, ECO:0000269|PubMed:1943692, ECO:0000269|PubMed:2358466, ECO:0000269|PubMed:7977368}. Note=The disease is caused by mutations affecting the gene represented in this entry.
Function Is indirectly involved in the control of blood pressure. {ECO:0000250}.
Interaction P10398:ARAF; NbExp=4; IntAct=EBI-536842, EBI-365961;
Pathway Amino-acid biosynthesis; L-arginine biosynthesis; L- arginine from L-ornithine and carbamoyl phosphate: step 2/3.
Pathway Nitrogen metabolism; urea cycle; (N(omega)-L- arginino)succinate from L-aspartate and L-citrulline: step 1/1.
Similarity Belongs to the argininosuccinate synthase family. Type 1 subfamily. {ECO:0000305}.
Subunit Homotetramer. Interacts with NMRAL1. {ECO:0000269|PubMed:17496144, ECO:0000269|PubMed:18323623}.