Aliases for BAAT Gene
External Ids for BAAT Gene
Previous GeneCards Identifiers for BAAT Gene
The protein encoded by this gene is a liver enzyme that catalyzes the transfer of C24 bile acids from the acyl-CoA thioester to either glycine or taurine, the second step in the formation of bile acid-amino acid conjugates. The bile acid conjugates then act as a detergent in the gastrointestinal tract, which enhances lipid and fat-soluble vitamin absorption. Defects in this gene are a cause of familial hypercholanemia (FHCA). Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]
GeneCards Summary for BAAT Gene
BAAT (Bile Acid-CoA:Amino Acid N-Acyltransferase) is a Protein Coding gene. Diseases associated with BAAT include Hypercholanemia, Familial and Hemolytic Uremic Syndrome, Atypical 1. Among its related pathways are Farnesoid X Receptor Pathway and Fatty acid elongation. Gene Ontology (GO) annotations related to this gene include receptor binding and palmitoyl-CoA hydrolase activity. An important paralog of this gene is ACOT4.
UniProtKB/Swiss-Prot for BAAT Gene
Involved in bile acid metabolism. In liver hepatocytes catalyzes the second step in the conjugation of C24 bile acids (choloneates) to glycine and taurine before excretion into bile canaliculi. The major components of bile are cholic acid and chenodeoxycholic acid. In a first step the bile acids are converted to an acyl-CoA thioester, either in peroxisomes (primary bile acids deriving from the cholesterol pathway), or cytoplasmic at the endoplasmic reticulum (secondary bile acids). May catalyze the conjugation of primary or secondary bile acids, or both. The conjugation increases the detergent properties of bile acids in the intestine, which facilitates lipid and fat-soluble vitamin absorption. In turn, bile acids are deconjugated by bacteria in the intestine and are recycled back to the liver for reconjugation (secondary bile acids). May also act as an acyl-CoA thioesterase that regulates intracellular levels of free fatty acids. In vitro, catalyzes the hydrolysis of long- and very long-chain saturated acyl-CoAs to the free fatty acid and coenzyme A (CoASH), and conjugates glycine to these acyl-CoAs.