Origin
Siderocalin (also known as neutrophil gelatinase-associated lipocalin (NGAL) or human neutrophil lipocalin) is part of a family of proteins known as lipocalins, which are small extracellular proteins that bind to small (usually hydrophobic) molecules. Many lipocalins bind to retinol (also known as vitamin A) and are involved in the transport of retinol. It is only in recent years that NGAL has been recognised as a scavenger of siderophores. This discovery resulted in its new name siderocalin (sidero for siderophore, calin for lipocalin).
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