1. A classification of plant food allergens
Heimo Breiteneder, PhD, Christian Radauer, PhD 
Journal of Allergy and Clinical Immunology 
Volume 113, Issue 5, Pages (May 2004)
DOI: /j.jaci

2. FIG 1
Structures of proteins from the cupin superfamily. A, Barley germin monomer (Protein Data Bank accession no. 1FIZ), a protein containing one cupin domain. B, Single subunit of soybean β-conglycinin, a vicilin (1IPK). C, Single subunit of soybean proglycinin, a legumin (1FXZ). D and E, Molecular surfaces of the trimers of β-conglycinin and proglycinin. Blue, α-helices; red, β-strands; yellow, disulfide bonds; green, manganese ion.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )

3. FIG 2
Secondary structures of allergens from the prolamin superfamily. A, Rapeseed 2S albumin (napin BNIb, Protein Data Bank accession no. 1PNB). B, Barley nsLTP (1LIP). C, Wheat α-amylase inhibitor (1HSS). D, Soybean hydrophobic seed protein (1HYP). Blue, α-helices; red, β-strands; yellow, disulfide bonds.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )

4. FIG 3
Stabilization of allergen structures by disulfide bonds. A, Hevein (Hev b 6.02), the major Hevea brasiliensis latex allergen (Protein Data Bank accession no. 1HEV). B, Zeamatin from Zea mays, a member of the PR-5 (TLP) family (1DU5). C, The major kiwifruit allergen actinidin (Act c 1), a papain-like cysteine protease (2ACT). Blue, α-Helices; red, β-strands; yellow, disulfide bonds.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )