PMID- 33107047 OWN - NLM STAT- MEDLINE DCOM- 20210708 LR - 20210708 IS - 1745-4514 (Electronic) IS - 0145-8884 (Linking) VI - 45 IP - 1 DP - 2021 Jan TI - The IgE/IgG binding capacity and structural changes of Alaska Pollock parvalbumin glycated with different reducing sugars. PG - e13539 LID - 10.1111/jfbc.13539 [doi] AB - Parvalbumin (PV) is one of the major allergens in fish. The aim of our present work was to research the influence mechanism of glycation with different reducing sugars (glucose, fructose, ribose, lactose, and galactose) on the immunoglobulin E (IgE) and immunoglobulin G (IgG) binding capacity and structure changes of PV in Alaska Pollock. PV glycated with glucose or fructose (PV-Glu/ PV-Fru) exhibited the higher IgE/IgG binding capacities than that of ribose, galactose, or lactose. During glycation, the lysine (Lyr), tyrosine (Tyr), and phenylalanine (Phe) of PV were gradually embed into core area of three-dimensional structure of protein, which reflected in the ultraviolet (UV) spectrum and fluorescence spectra. Moreover, the increase of surface hydrophobicity had confirmed the conformation alteration of glycated PV. These results suggest that there is a specific association among the change of PV in glycation and in potential allergenicity. The types and conformation of reducing sugar greatly influenced the IgE/IgG binding capacity of PV, and glycation with ribose and galactose was a promising approach for reducing the IgE/IgG binding capacity of PV from Alaska Pollock. PRACTICAL APPLICATIONS: Parvalbumin (PV), the major allergen of fish, it can not only maintain the physiological activity of cells, but also cross react with human amyloid protein to alleviate Alzheimer's disease and Parkinson's syndrome. This study revealed that the IgE/IgG binding capacity and structural changes of PV from Alaska Pollock modified by glycation with different reducing sugars. This will help us to understand the sensitization and structural change of the glycated products after the reaction of PV with different reducing sugars. It provides an effective carbonyl source for the preparation of low antigenicity PV based on glycation and lays a foundation for glycation modification of other food allergens. CI - (c) 2020 Wiley Periodicals LLC. FAU - Zhang, Min AU - Zhang M AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China. FAU - Tu, Zong-Cai AU - Tu ZC AUID- ORCID: 0000-0001-8877-4681 AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China. AD - National R&D center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang, China. AD - Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Nanchang, China. FAU - Liu, Jun AU - Liu J AUID- ORCID: 0000-0002-8570-5741 AD - National R&D center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang, China. AD - Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Nanchang, China. FAU - Hu, Yue-Ming AU - Hu YM AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China. FAU - Wang, Hui AU - Wang H AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China. FAU - Mao, Ji-Hua AU - Mao JH AD - State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China. FAU - Li, Jin-Lin AU - Li JL AD - National R&D center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20201026 PL - United States TA - J Food Biochem JT - Journal of food biochemistry JID - 7706045 RN - 0 (Immunoglobulin G) RN - 0 (Parvalbumins) RN - 0 (Sugars) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Alaska MH - Animals MH - Humans MH - Immunoglobulin E MH - *Immunoglobulin G MH - *Parvalbumins MH - Sugars OTO - NOTNLM OT - Alaska Pollock OT - IgE/IgG binding capacity OT - glycation OT - parvalbumin OT - structural changes EDAT- 2020/10/28 06:00 MHDA- 2021/07/09 06:00 CRDT- 2020/10/27 05:49 PHST- 2020/05/27 00:00 [received] PHST- 2020/08/23 00:00 [revised] PHST- 2020/09/04 00:00 [accepted] PHST- 2020/10/28 06:00 [pubmed] PHST- 2021/07/09 06:00 [medline] PHST- 2020/10/27 05:49 [entrez] AID - 10.1111/jfbc.13539 [doi] PST - ppublish SO - J Food Biochem. 2021 Jan;45(1):e13539. doi: 10.1111/jfbc.13539. Epub 2020 Oct 26.