Comparison of the amino acid sequences of SPL A‐ and B‐chains with other C‐type lectins. Alignment was conducted by the Clustal Omega program.17 The sequences are from the following species: A. limnaeus, galactose‐specific lectin nattectin (C‐type lectin)‐like protein (Austrofundulus limnaeus) (UniProt A0A2I4CJP3); M. galloprovincialis, C‐type lectin 5 (Mytilus galloprovincialis) (UniProt A0A0C5PT73); F. heteroclitus, lectin C‐type domain containing protein (Fundulus heteroclitus) (UniProt A0A146UDD9); C. teleta, Uncharacterized protein (fragment) (Capitella teleta) (UniProt R7VD19); A. mexicanus, (Astyanax mexicanus) (UniProt W5LBI3); Oreochromis niloticus, uncharacterized protein (Nematostella vectensis) (UniProt I3K683); O. aries, C‐type lectin domain containing 17A (Ovis aries) (UniProt W5P5A6); T. nigroviridis, uncharacterized protein (Tetraodon nigroviridis) (UniProt H3D482); CEL‐I, C‐type lectin from the sea cumber (Cucumaria echinata) (UniProt Q7M462).19 Asterisks, colons, and periods indicate the positions of identical, strongly similar, and weakly similar residues, respectively. Highly conserved cysteine residues, which form disulfide bonds, are enclosed in boxes.