Jacalin-like lectins are sugar-binding protein domains mostly found in plants. They adopt a beta-prism topology consistent with a circularly permuted three-fold repeat of a structural motif. Proteins containing this domain may bind mono- or oligosaccharides with high specificity. The domain can occur in tandem-repeat arrangements with up to six copies, and in architectures combined with a variety of other functional domains. Taxonomic distribution is not restricted to plants, the domain is also found in various mammalian proteins, for example.
Jiyao W et al.(2023). "The conserved domain database in 2023.",