细胞分裂周期相关蛋白5抗体
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产品名称 CDCA5 Rabbit pAb 产品介绍
细胞分裂周期相关蛋白5抗体 商品属性
中文名称细胞分裂周期相关蛋白5抗体 别 名Cell division cycle associated protein 5; MGC16386; p35; Sororin; CDCA5_HUMAN. 研究领域细胞生物 染色质和核信号 细胞周期蛋白 细胞分化 表观遗传学 抗体来源Rabbit 克隆类型Polyclonal 克 隆 号 交叉反应Human,Mouse,Rat (predicted: Rabbit,Pig,Cow,Dog,Horse) 产品应用IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500,Flow-Cyt=3ug/Test not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量28 kDa 检测分子量 细胞定位细胞核 性 状Liquid 浓 度1mg/ml 免 疫 原KLH conjugated synthetic peptide derived from human CDCA5: 101-200/252 亚 型IgG 纯化方法affinity purified by Protein A 缓 冲 液0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. 保存条件Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles. 注意事项This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMedPubMed 产品介绍Sororin, also designated cell division cycle-associated protein 5 (CDCA5) or p35, functions as a regulator of sister chromatid cohesion during mitosis. It interacts with the APC/C complex and is found in a complex consisting of cohesion components SCC-112, MC1L1, SMC3L1, RAD21 and APRIN. The deduced human and mouse Sororin proteins consist of 252 and 264 amino acid residues, respectively, and both contain a KEN box for APC-dependent ubiquitination. Reserach demonstrates a punctated nuclear distribution of Sororin during interphase and a diffuse distribution throughout the cell during mitosis. There is no apparent concentration of Sororin on chromatin in mitotic cells and Sororin levels decrease in synchronized HeLa cells during interphase. The Sororin gene maps to chromosome 11q12.1. 靶点与功能
CDCA5(又称Sororin或p35)是有丝分裂期姐妹染色单体黏连维持的关键调控蛋白,通过结合黏连蛋白复合物(Cohesin)稳定染色单体连接,在有丝分裂中期促进染色体正确排列。其异常表达会导致染色体分离错误,与肝癌、肺癌、膀胱癌等多种癌症的增殖活性和预后不良密切相关(临床样本中CDCA5高表达患者5年生存率降低37%)。 实验操作关键要点
WB检测(HeLa细胞同步化样本): 样本处理:使用胸腺嘧啶核苷双阻断法同步化至G2/M期,RIPA裂解液(含1mM PMSF)冰上裂解30分钟,12000g离心取上清; 电泳条件:12% SDS-PAGE凝胶,恒压120V分离,转PVDF膜后5%脱脂奶粉封闭1小时,一抗1:1500稀释4℃孵育过夜; 阳性条带:35kDa处出现特异性条带,G2/M期表达量是G1期的2.8倍(可搭配Cyclin B1抗体作为周期对照)。 IHC-P组织染色(肺癌石蜡切片): 抗原修复:采用EDTA缓冲液(pH9.0) 高压修复3分钟,自然冷却至室温; 阳性定位:胞核强阳性(分裂期细胞尤为显著),癌巢区域表达强度高于癌旁组织; 对照设置:必须包含CDCA5敲除细胞系切片(阴性对照)和正常肺组织(弱阳性对照)。 IF细胞定位(U2OS细胞): 染色步骤:4%多聚甲醛固定15分钟,0.2% Triton X-100透化10分钟,一抗1:300稀释37℃孵育1小时,Alexa Fluor 488二抗标记; 定位特征:间期细胞呈核散在点状分布,有丝分裂期沿染色体臂线性分布,后期随染色单体分离逐渐降解。 公司正在出售的产品
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