首页|兔抗FAM50B多克隆抗体的制备与应用

兔抗FAM50B多克隆抗体的制备与应用

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目的 制备兔抗FAM50B多克隆抗体并探究FAM50B功能应用.方法 运用GEPIA在线分析FAM50B在71种癌症中的表达和预后情况;利用DNA重组技术构建pGEX-6P-1-FAM50B原核表达质粒,并转入至大肠杆菌BL21中,用不同浓度IPTG诱导表达,利用GST纯化柱纯化FAM50B融合蛋白.收集纯化的目的蛋白用于新西兰兔免疫实验.Western Blot检测自制FAM50B多克隆抗体特异性,免疫荧光检测小鼠组织中FAM50B的定位及表达.结果 FAM50B在7种癌症中表达异常,且其表达与LGG的不良预后有关;成功构建pGEX-6P-1-FAM50B原核表达质粒;在16℃,经0.3 mM IPTG诱导16 h,FAM50B融合蛋白表达量较高,其大小约为62 kDa;经Western Blot和免疫荧光检测显示,自制抗体特异性好,FAM50B在睾丸中特异性高表达,且定位于细胞核中.结论 制备的FAM50B抗体血清特异性好,效价高,可用于Western Blot和免疫荧光,为进一步深入研究FAM5 0B的功能奠定了基础.
Preparation and application of rabbit anti-FAM50B polyclonal antibody
Objective To prepare rabbit anti-FAM50B polyclonal antibody and investigate the application of FAM50B's function.Methods The expression and prognosis of FAM50B in seven cancers were analyzed using the GEPIA online platform.The pGEX-6P-1-FAM50B prokaryotic expression plasmid was constructed utilizing DNA recombination technology and transformed into E.coli BL21.Expression was induced with different IPTG concentrations,and the FAM50B fusion protein was purified using a GST purification column.The purified target protein was used for immunization experiments in New Zealand rabbits.The specificity of the homemade FAM50B polyclonal antibody was evaluated using Western Blot,while its localization and expression in mouse tissues were assessed through immunofluorescence staining.Results FAM50B is abnormally expressed in seven types of cancer,and its expression is associated with poor prognosis in LGG.The pGEX-6P-1-FAM50B plasmid was successfully constructed,and significant expression of the FAM50B fusion protein,approximately 62 kDa in size,was observed at 16℃ after 16 hours of induction with 0.3 mM IPTG.The homemade antibody demonstrated good specificity,with high and specific expression of FAM50B in the testes,localized in the cell nucleus,as shown by Western Blot and immunofluorescence staining.Conclusion The prepared FAM50B antibody serum exhibits high specificity and potency,suitable for Western Blot and immunofluorescence staining,thus establishing a solid basis for further in-depth studies on FAM50B's function.

FAM50BRabbit antibodyProkaryotic expressionProtein purificationBioinformatics analysisAntibody preparation and application

时冬玉、邱雅萱、孟祥瑞、邢俊俏、赵雪、张熙琪

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江汉大学生命科学学院,湖北武汉 430056

江汉大学医学部,湖北武汉 430056

武汉生物医学研究院,湖北武汉 430056

FAM50B 免抗 原核表达 蛋白纯化 生物信息学分析 抗体制备与应用

国家重点研发计划项目国家自然科学基金项目

2020YFA090740032170702

2024

湖北中医药大学学报
湖北中医药大学

湖北中医药大学学报

CSTPCD
影响因子:0.873
ISSN:1008-987X
年,卷(期):2024.26(5)
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