{"title":"The Zpr-3 Antibody Recognizes the 320-354 Region of Rho and Labels Both Rods and Green Cones in Zebrafish.","authors":"Hualei Hu, Yayun Qin, Zhen Qu, Yuwen Huang, Xiang Ren, Mugen Liu, Fei Liu, Pan Gao","doi":"10.1089/zeb.2024.0159","DOIUrl":null,"url":null,"abstract":"<p><p>Retinal markers with high quality and specificity are important for the observation of pathologic changes of retinal cells during retinal development, degeneration, and regeneration. The zpr-3 antibody is widely used to label rods in zebrafish, but the exact antigen is still unknown. In this study, we provided evidence to demonstrate that the antigen gene of zpr-3 is rho, which encodes the rod opsin, and the exact epitope of zpr-3 is the 320-354 region of Rho protein. More importantly, our immunofluorescence assays indicated that zpr-3 labels both the outer segments of rods and green cones on zebrafish retinal sections, probably due to the cross-reaction with the green-cone opsin. Our work is valuable for the scientific community to interpret the experimental data involving the zpr-3 antibody.</p>","PeriodicalId":94273,"journal":{"name":"Zebrafish","volume":" ","pages":"394-400"},"PeriodicalIF":0.0000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zebrafish","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1089/zeb.2024.0159","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/9/24 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Retinal markers with high quality and specificity are important for the observation of pathologic changes of retinal cells during retinal development, degeneration, and regeneration. The zpr-3 antibody is widely used to label rods in zebrafish, but the exact antigen is still unknown. In this study, we provided evidence to demonstrate that the antigen gene of zpr-3 is rho, which encodes the rod opsin, and the exact epitope of zpr-3 is the 320-354 region of Rho protein. More importantly, our immunofluorescence assays indicated that zpr-3 labels both the outer segments of rods and green cones on zebrafish retinal sections, probably due to the cross-reaction with the green-cone opsin. Our work is valuable for the scientific community to interpret the experimental data involving the zpr-3 antibody.
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