PMID- 36728846 OWN - NLM STAT- MEDLINE DCOM- 20230216 LR - 20231216 IS - 1520-5118 (Electronic) IS - 0021-8561 (Print) IS - 0021-8561 (Linking) VI - 71 IP - 6 DP - 2023 Feb 15 TI - Structure and IgE Cross-Reactivity among Cashew, Pistachio, Walnut, and Peanut Vicilin-Buried Peptides. PG - 2990-2998 LID - 10.1021/acs.jafc.2c07061 [doi] AB - Peanut and tree-nut allergies are frequently comorbid for reasons not completely understood. Vicilin-buried peptides (VBPs) are an emerging family of food allergens whose conserved structural fold could mediate peanut/tree-nut co-allergy. Peptide microarrays were used to identify immunoglobulin E (IgE) epitopes from the N-terminus of the vicilin allergens Ara h 1, Ana o 1, Jug r 2, and Pis v 3 using serum from three patient diagnosis groups: monoallergic to either peanuts or cashew/pistachio, or dual allergic. IgE binding peptides were highly prevalent in the VBP domains AH1.1, AO1.1, JR2.1, and PV3.1, but not in AO1.2, JR2.2, JR2.3, and PV3.2 nor the unstructured regions. The IgE profiles did not correlate with diagnosis group. The structure of the VBPs from cashew and pistachio was solved using solution-NMR. Comparisons of structural features suggest that the VBP scaffold from peanuts and tree-nuts can support cross-reactivity. This may help understand comorbidity and cross-reactivity despite a distant evolutionary origin. FAU - Foo, Alexander C Y AU - Foo ACY AD - Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States. FAU - Nesbit, Jacqueline B AU - Nesbit JB AD - Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States. FAU - Gipson, Stephen A Y AU - Gipson SAY AUID- ORCID: 0000-0001-5173-3309 AD - Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States. FAU - DeRose, Eugene F AU - DeRose EF AUID- ORCID: 0000-0003-0112-1296 AD - Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States. FAU - Cheng, Hsiaopo AU - Cheng H AD - Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States. FAU - Hurlburt, Barry K AU - Hurlburt BK AUID- ORCID: 0000-0001-5863-9542 AD - Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States. FAU - Kulis, Michael D AU - Kulis MD AD - Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7220, United States. FAU - Kim, Edwin H AU - Kim EH AD - Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7220, United States. FAU - Dreskin, Stephen C AU - Dreskin SC AD - Division of Allergy and Clinical Immunology, University of Colorado Denver School of Medicine, Aurora, Colorado 80045-2560, United States. FAU - Mustafa, Shahzad AU - Mustafa S AD - Rochester Regional Health, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642, United States. FAU - Maleki, Soheila J AU - Maleki SJ AUID- ORCID: 0000-0002-6056-9958 AD - Agricultural Research Service, United States Department of Agriculture, 1100 Allen Toussaint Boulevard, New Orleans, Louisiana 70124, United States. FAU - Mueller, Geoffrey A AU - Mueller GA AUID- ORCID: 0000-0001-8361-5323 AD - Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, MD-MR01, Durham, North Carolina 27709, United States. LA - eng GR - R01 AI099029/AI/NIAID NIH HHS/United States GR - P30 ES010126/ES/NIEHS NIH HHS/United States GR - R01 AI165866/AI/NIAID NIH HHS/United States GR - R01 AI077653/AI/NIAID NIH HHS/United States GR - R21 AI135397/AI/NIAID NIH HHS/United States PT - Journal Article DEP - 20230202 PL - United States TA - J Agric Food Chem JT - Journal of agricultural and food chemistry JID - 0374755 RN - 0 (Allergens) RN - 37341-29-0 (Immunoglobulin E) RN - 0 (Peptides) RN - 9067-60-1 (vicilin protein, plant) SB - IM MH - Humans MH - Allergens/chemistry/immunology MH - *Anacardium/chemistry MH - *Arachis/chemistry MH - *Immunoglobulin E/immunology MH - *Juglans/chemistry MH - Nut Hypersensitivity/diagnosis MH - Nuts/chemistry MH - Peptides/chemistry/immunology MH - *Pistacia/chemistry MH - Cross Reactions PMC - PMC10402694 MID - NIHMS1916798 OTO - NOTNLM OT - allergen OT - peanut OT - tree-nut OT - vicilin-buried peptide COIS- The authors declare no competing financial interest. EDAT- 2023/02/03 06:00 MHDA- 2023/02/17 06:00 PMCR- 2023/08/04 CRDT- 2023/02/02 10:23 PHST- 2023/02/03 06:00 [pubmed] PHST- 2023/02/17 06:00 [medline] PHST- 2023/02/02 10:23 [entrez] PHST- 2023/08/04 00:00 [pmc-release] AID - 10.1021/acs.jafc.2c07061 [doi] PST - ppublish SO - J Agric Food Chem. 2023 Feb 15;71(6):2990-2998. doi: 10.1021/acs.jafc.2c07061. Epub 2023 Feb 2.