The utility model relates to a monoclonal antibody hybridoma cell line 2E5, which is a specific monoclonal antibody, and belongs to the field of food safety immunoassay technology. The invention of monoclonal cell line 2E5 has been preserved in general microbiology center, Chinese microbe preservation Management Committee referred to as CGMCC, the preservation number is CGMCC No.10873. The invention adopts the active ester method to prepare the immunogen with the coupling of the technical cephalosporin and the BSA, and the preparation of the raw material is carried out by the coupling of the cephalosporin and the OVA. After immunization of mice, a specific anti tumor cell line was obtained. This cell line secreting monoclonal antibody, only specific to ceftiofur, crossover rate and other cephalosporins cephalexin, cefquinome were 3.12%, 5.3%, crossover rate and other cephalosporin antibiotics were less than 0.1%, so it has very high specificity. The anti ceftiofur monoclonal antibody hybridoma cell line, not only has better detection sensitivity and affinity, and cross reaction with other cephalosporin antibiotics can achieve the detection rate is low, with cefotaxime specific purpose. The invention also provides a new method for the preparation of specific cephalosporin prime specific antibodies, monoclonal cell lines are very good.
【技术实现步骤摘要】
本专利技术涉及一株特异性抗头孢噻呋单克隆抗体杂交瘤细胞株2E5及其应用,属于食品安全免疫检测
技术介绍
头孢噻呋(EFT),英文名称为ceftiofur,分子式为C19H17N5O7S3,分子量为523.56,化学名称为(6R,7R)-7-[2-(2-氨基噻唑-4-基)(甲氧基亚胺基)乙酰胺基]-3-[(2-呋喃基羰基)硫甲基]-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-甲酸。CAS登录号为80370-57-6。头孢噻呋为抗微生物药,是头孢菌素类半合成的第三代动物专用头孢菌素。头孢噻呋是第一个动物专用的头孢菌素类抗生素。其母核是由头孢菌素C裂解而获得的7-氨基头孢烷酸(7-ACA)。具广谱杀菌作用,对革兰氏阳性,革兰氏阴性包括产内酰胺酶菌株均有效。抗菌活性比氨苄西林强,对链球菌的活性也比喹诺酮类抗菌药强。由于其优良的抗菌活性和药动力学特点,陆续被美国、加拿大、日本及欧洲一些国家正式批准用于肉牛、奶牛、马、猪、羊的呼吸道疾病的治疗,显示了其在兽医临床应用的广阔前景。一般来说,头孢噻呋对各种动物的毒副作用较为轻微,大多数动物多可耐受,无需停药。少数动物可能出现皮疹、瘙痒等不良症状,偶见极度过敏现象。另一方面,长期食用头孢噻呋残留的动物性食品还可引起细菌耐药性,造成人体微生物环境平衡紊乱和失调。由于头孢噻呋被广泛用于治疗牛乳腺炎和其它乳牛疾病,该药物在乳汁中的残留也会给乳制品的质量带来严重影响。此 ...
【技术保护点】
一株特异性抗头孢噻呋单克隆抗体杂交瘤细胞株2E5,已保藏于中国微生物菌种保藏管理委员会普通微生物中心,简称CGMCC,保藏编号为CGMCC No.10873。
【技术特征摘要】
1.一株特异性抗头孢噻呋单克隆抗体杂交瘤细胞株2E5,已保藏于中国微生物菌种保
藏管理委员会普通微生物中心,简称CGMCC,保藏编号为CGMCCNo.10873。
2.抗头孢噻呋单克隆抗体,其特征在于:它由所述...
【专利技术属性】
技术研发人员:郭玲玲,朱雨婷,刘丽强,吴晓玲,宋珊珊,
申请(专利权)人:无锡迪腾敏生物科技有限公司,
类型:发明
国别省市:江苏;32
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