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Overview
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Pathways & interactions
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Cross-references
Calycin (IPR012674)
Short name: Calycin
Overlapping entries
- Lipocalin/cytosolic fatty-acid binding domain (IPR000566)
- Alpha-1-acid glycoprotein (IPR001500)
- Lipocalin (IPR002345)
- Nitrophorin domain (IPR002351)
- Lipocalin, bacterial (IPR002446)
- Beta-lactoglobulin (IPR002447)
- Lipocalin, OBP-like (IPR002448)
- Retinol binding protein/Purpurin (IPR002449)
- von Ebner's gland protein/ Bos/Can allergen (IPR002450)
- Apolipoprotein D (IPR002969)
- Tick histamine-binding protein (IPR002970)
- Major urinary protein (IPR002971)
- Prostaglandin D synthase (IPR002972)
- Neutrophil gelatinase-associated lipocalin/epididymal-specific lipocalin-12 (IPR003087)
- Triabin/Procalin (IPR005657)
- Phenolic acid decarboxylase (IPR008729)
- VDE lipocalin domain (IPR010788)
- Uncharacterised conserved protein UCP036226 (IPR014602)
- Domain of unknown function DUF1794 (IPR014878)
- Protein of unknown function DUF1934 (IPR015231)
- ZinT domain (IPR015304)
- Chromophore lyase CpcS/CpeS (IPR018536)
- Moubatin (IPR020398)
- Protein of unknown function DUF3255 (IPR021664)
- Domain of unknown function DUF3598 (IPR022017)
- Lipocalin, ApoD type (IPR022271)
- Apolipoprotein M (IPR022734)
- Uncharacterised protein family UPF0678 (IPR022939)
- Apolipoprotein D, vertebrates (IPR026222)
- Protein AMBP (IPR029856)
- Myelin P2 protein (IPR031256)
- Gastrotropin (IPR031257)
- Intracellular lipid binding protein (IPR031259)
- Fatty acid-binding protein 12 (IPR031261)
- Retinol-binding protein 1 (IPR031264)
- Retinol-binding protein 5 (IPR031270)
- Fatty acid-binding protein, intestinal (IPR031272)
- Liver basic fatty acid-binding protein (IPR031276)
- Cellular retinoic acid-binding protein 1 (IPR031279)
- Cellular retinoic acid-binding protein 2 (IPR031281)
- Fatty acid-binding protein 4 (IPR033073)
Description
Calycins form a large protein superfamily that share similar beta-barrel structures. Calycins can be divided into families that include lipocalins, fatty acid binding proteins, triabin, and thrombin inhibitor [PMID: 11058743]. Of these families, the lipocalin family (IPR002345) is the largest and functionally the most diverse. Lipocalins are extracellular proteins that share several common recognition properties such as ligand binding, receptor binding and the formation of complexes with other macromolecules. Lipocalins include the retinol binding protein, lipocalin allergen, aphrodisin (a sex hormone), alpha-2U-globulin, prostaglandin D synthase, beta-lactoglobulin, bilin-binding protein, and the nitrophorins [PMID: 12432930, PMID: 11058763, PMID: 11058769, PMID: 11058756]. Bacterial hypothetical proteins YodA from Escherichia coli and YwiB from Bacillus subtilis share a similar calycin beta-barrel structure. Part of the YodA hypothetical protein has a calycin-like structure [PMID: 12909634].
Contributing signatures
- G3DSA:2.40.128.20 (G3DSA:2.40.128.20)
- SSF50814 (SSF50814)