Aliases for LRAT Gene
External Ids for LRAT Gene
Previous GeneCards Identifiers for LRAT Gene
The protein encoded by this gene localizes to the endoplasmic reticulum, where it catalyzes the esterification of all-trans-retinol into all-trans-retinyl ester. This reaction is an important step in vitamin A metabolism in the visual system. Mutations in this gene have been associated with early-onset severe retinal dystrophy and Leber congenital amaurosis 14. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2014]
GeneCards Summary for LRAT Gene
LRAT (Lecithin Retinol Acyltransferase) is a Protein Coding gene. Diseases associated with LRAT include Leber Congenital Amaurosis 14 and Retinitis Pigmentosa. Among its related pathways are Phototransduction and Metabolism of water-soluble vitamins and cofactors. Gene Ontology (GO) annotations related to this gene include transferase activity, transferring acyl groups and retinol binding. An important paralog of this gene is PLAAT1.
UniProtKB/Swiss-Prot Summary for LRAT Gene
Transfers the acyl group from the sn-1 position of phosphatidylcholine to all-trans retinol, producing all-trans retinyl esters (PubMed:9920938). Retinyl esters are storage forms of vitamin A (Probable). LRAT plays a critical role in vision (Probable). It provides the all-trans retinyl ester substrates for the isomerohydrolase which processes the esters into 11-cis-retinol in the retinal pigment epithelium; due to a membrane-associated alcohol dehydrogenase, 11 cis-retinol is oxidized and converted into 11-cis-retinaldehyde which is the chromophore for rhodopsin and the cone photopigments (Probable). Required for the survival of cone photoreceptors and correct rod photoreceptor cell morphology (By similarity).