?cl18340: Lipocalin Superfamily (this model, PSSM-Id:266993 is obsolete)
Lipocalin / cytosolic fatty-acid binding protein family Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.
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Jiyao W et al.(2023). "The conserved domain database in 2023.",