| lectin fold | Algal lectins | Animal lectins | Archaea lectin | Bacterial lectins | Fungal and yeast lectins | Plant lectins | Protist, parasites, mold | Virus lectins |
| a-helix triplets / Duffy-like | | | | | | | Protist, parasites, mold Plasmodium Erythrocyte binding antigen | |
| a/b barrel / TIM | | Animal lectins chi-lectin (TIM) | | | | Plant lectins chi-lectin (TCLL)Plant lectins chi-lectin (TIM) | | |
| a/b mixed / C-type lectin-like | | Animal lectins C-type lectin | | | | | | |
| a/b mixed / LysM domain | | | | | Fungal and yeast lectins LysM-like | | | |
| a/b mixed with b-sheet / Fibrinogen C-ter like | | Animal lectins Ficolin-likeAnimal lectins Tenascin | | | | | | |
| a/b mixed with b-sheet / MAR domain | | | | | | | Protist, parasites, mold MAR Micronemal protein | |
| a/b mixed with b-sheet / not classified | | | | Bacterial lectins Factor H-binding proteinBacterial lectins HOP-OMP adhesinsBacterial lectins Mycoplasma adhesins | | | | |
| a/b OB-fold | | | | Bacterial lectins Cholera toxin like AB5Bacterial lectins heat labile toxin IIB AB5Bacterial lectins Pertussis toxin AB5Bacterial lectins Shiga toxin AB5Bacterial lectins Staphylococcal enterotoxinBacterial lectins Staphylococcal Superantigen-LikeBacterial lectins Thyphoid toxin like AB5 | | | | |
| b-barrel | Algal lectins OAA-like | Animal lectins P-type lectinAnimal lectins P-type lectin-like | | Bacterial lectins EclA_swappedBacterial lectins OAA-like | | | | |
| b-hairpin stack | | | | Bacterial lectins Toxin repetitive domain | | | | |
| b-helix | | Animal lectins Variable Lymphocyte Receptor | | | | | | Virus lectins Acinetobacter phage AP22Virus lectins E coli phage CBA120Virus lectins E coli phage HK620Virus lectins Salmonella phage P22Virus lectins Shigella phage Sf6 |
| b-prism I | Algal lectins Jacalin-like | Animal lectins Jacalin-likeAnimal lectins Natterin-likeAnimal lectins Oyster lectin | Archaea lectin Natterin-like | Bacterial lectins Vibrio b-prism | | Plant lectins Jacalin-like | | |
| b-prism II | | | | Bacterial lectins Monocot-lectin likeBacterial lectins Pyocin | Fungal and yeast lectins Monocot-lectin like | Plant lectins Monocot-lectin like | | |
| b-prism III | | | | | Fungal and yeast lectins Fungal prism lectins | | | |
| b-propeller | | Animal lectins Tachylectin-2-like (PropLec5A)Animal lectins Tectonin (PropLec6B) | | Bacterial lectins AAL-like (PropLec6A)Bacterial lectins BPL and CVL like (PropLec7C)Bacterial lectins PLL-like (PropLec7A) | Fungal and yeast lectins AAL-like (PropLec6A)Fungal and yeast lectins PVL-like (PropLec7B)Fungal and yeast lectins Tectonin (PropLec6B) | | Protist, parasites, mold Plasmodium protective antigen | Virus lectins neuraminidase-like |
| b-sandwich / 2 calcium lectin | | Animal lectins 2 calcium lectin | | Bacterial lectins 2 calcium lectin | | | | |
| b-sandwich / agaromycete-like | | | | | Fungal and yeast lectins CML-like | | | |
| b-sandwich / ConA-like | | Animal lectins ANXUR1 Malectin-likeAnimal lectins calnexin-calreticulin likeAnimal lectins ERGIC-VIP L-typeAnimal lectins galectin-likeAnimal lectins Laminin G-likeAnimal lectins MalectinAnimal lectins Pentraxin | Archaea lectin ArchLec-like | Bacterial lectins L-type bacterial | Fungal and yeast lectins galectin-likeFungal and yeast lectins Yeast Emp L-type | Plant lectins L-type (legume lectin) | Protist, parasites, mold Physarum lectin | Virus lectins Coronavirus spike proteinVirus lectins Rotavirus spike proteinVirus lectins Rotavirus spike protein P2 |
| b-sandwich / CUB-like | | Animal lectins L-rhamnose binding lectin | | | | | | |
| b-sandwich / cyanovirin-like | | | | Bacterial lectins cyanovirin-likeBacterial lectins Microvirin CVN-like | Fungal and yeast lectins cyanovirin-like | Plant lectins cyanovirin-like | | |
| b-sandwich / cytolysin-like | | | | | Fungal and yeast lectins Fungal fruit body lectin | | Protist, parasites, mold Oomycete cytolysin | |
| b-sandwich / Galactose-binding domain-like | | Animal lectins F-boxAnimal lectins F-type lectinAnimal lectins H-type lectinAnimal lectins Sea anemon lectin | | Bacterial lectins 1 Calcium lectinBacterial lectins F-type lectin | Fungal and yeast lectins CBM67-like | Plant lectins F-box Nictaba-likePlant lectins Phloem lectin | Protist, parasites, mold H-type lectin | |
| b-sandwich / Ig-like | | Animal lectins I-type lectin | | Bacterial lectins Siglec-like adhesin | Fungal and yeast lectins Ig-like | | | |
| b-sandwich / PA14 adhesin | | | | Bacterial lectins PA14 RTX | Fungal and yeast lectins PA14 yeast adhesin | | | |
| b-sandwich / pili and adhesins | | | | Bacterial lectins bacterial adhesin (CfaE)Bacterial lectins bacterial adhesin (F17G)Bacterial lectins bacterial adhesin (FaeG)Bacterial lectins bacterial adhesin (FedF)Bacterial lectins bacterial adhesin (PapG)Bacterial lectins bacterial adhesin (PsaA)Bacterial lectins bacterial adhesin (UclD)Bacterial lectins bacterial adhesin FimH-like | | | | |
| b-sandwich / TNF-like | | | | Bacterial lectins TNFa-like | | | | Virus lectins TNFa-like |
| b-sandwich / toxin | | | | Bacterial lectins Clostridium HA | | | | |
| b-sandwich / viral coat and capsid protein | | | | | | | | Virus lectins Caliciviridae VP capsidVirus lectins Picornaviridae Coat ProteinVirus lectins Polyomavirus capsid proteinVirus lectins Reoviridae coat protein |
| b-sandwich / viral protein domain | | | | | | | | Virus lectins hemagglutinin-esteraseVirus lectins Influenza hemagglutinin |
| b-sandwich / virus globular domain | | | | | | | | Virus lectins Fiber knobVirus lectins Fiber-knob parvovirusVirus lectins Phage binding domainVirus lectins Turkey siadenovirus A |
| b-trefoil | | Animal lectins Cys-rich man-receptorAnimal lectins Earthworm lectin-likeAnimal lectins Mytilec-likeAnimal lectins Ricin-likeAnimal lectins Sevil-like | | Bacterial lectins Clostridial toxinBacterial lectins Clostridium HABacterial lectins Ricin-like | Fungal and yeast lectins Clitocybe trefoil lectin-likeFungal and yeast lectins Coprinus trefoil lectin-likeFungal and yeast lectins Laetiporus trefoil lectin-likeFungal and yeast lectins Ricin-likeFungal and yeast lectins Sclerotinia trefoil lectin-like | Plant lectins Amaranthin-likePlant lectins Ricin-like | Protist, parasites, mold Entamoeba trefoil lectin-like | |
| peptide | | Animal lectins Trefoil Factor | | | | | | |
| small protein / APPLE domain | | Animal lectins SML2 Micronemal protein | | | | | | |
| small protein / disulfide rich | | | | Bacterial lectins Cyanobacterial scytovirin | | | | |
| small protein / Invertebrate chitin-binding protein | | Animal lectins Invertebrate chitin-binding protein | | | | | | |
| small protein / Knottin | | Animal lectins Spider toxin | | | Fungal and yeast lectins Ginkbilobin-likeFungal and yeast lectins Lyophyllum ginkbilobin-like | Plant lectins GinkbilobinPlant lectins hevein-like | | |