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All-trans-retinyl esters (atREs) are the main storage form of retinol in hepatic stellate cells (HSCs). Lecithin retinol acyltransferase (LRAT) mediates the esterification of all-trans-retinol (atROL) with a variety of fatty acyl groups (FACYLs) to form REs which are stored in lipid droplets in the cytosol. Cellular retinol-binding protein 1 (RBP1) is an effective donor of atROL for LRAT (Ruiz et al. 1999).