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组蛋白去甲基转移酶JMJD1B抗体
包装与价格:
产品名称 JMJD1B Rabbit pAb 产品介绍
组蛋白去甲基转移酶JMJD1B抗体 商品属性
产品介绍 中文名称组蛋白去甲基转移酶JMJD1B抗体 别 名JHDM2B; JmjC domain containing histone demethylation protein 2B; JmjC domain-containing histone demethylation protein 2B; jmjd1b; Jumonji domain containing protein 1B; JUMONJI DOMAIN-CONTAINING PROTEIN 1B; KDM3B; KDM3B_HUMAN; Lysine-specific demethylase 3B; Nuclear protein 5qNCA. 研究领域肿瘤 免疫学 转录调节因子 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) 产品应用IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500 not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. 理论分子量190 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 JMJD1B: 1601-1761/1761 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JMJD1B (jumonji domain containing 1B), also known as KDM3B, 5qNCA (5q Nuclear Co-Activator) or C5orf7, is a member of the JHDM2 histone demethylase family of proteins. Expressed in a wide variety of tissues, JMJD1B localizes to the nucleus and contains one JMJC domain and a C-terminal zinc finger motif. JMJD1B functions as a histone demethylase and, using iron as a cofactor, demethylates lysine-9 of Histone H3. This suggests that JMJD1B plays a central role in the histone code. The gene encoding human JMJD1B is located within the 5q region of the genome that is often deleted in myeloid leukemias and myelodysplasias. This implies that JMJD1B may function as a tumor suppressor of myeloid leukemia. Eptopic expression of JMJD1B exhibits growth suppressive activities, further supporting a role for JMJD1B in tumor suppression. 靶点与功能
JMJD1B(Jumonji Domain-Containing Protein 1B),又称KDM3B,是JHDM2家族组蛋白去甲基化酶,通过JmjC结构域依赖Fe²⁺和α-酮戊二酸催化H3K9me1/me2去甲基化,参与染色质开放和基因激活。其核心功能包括: 表观调控:通过去除H3K9甲基化标记,促进下游基因(如雄激素靶基因、代谢相关基因)转录; 疾病关联:在前列腺癌、肝癌中高表达,通过激活癌基因(如AR、c-Myc)促进肿瘤增殖;在骨髓增生异常综合征中因5q染色体缺失可能作为抑癌基因失活; 生理作用:调控精子发生、能量代谢及胚胎发育。 实验操作关键要点
WB检测(细胞裂解液): 样本处理:使用含1mM PMSF和磷酸酶抑制剂的RIPA裂解液冰上裂解30分钟,12000g离心15分钟取上清; 电泳条件:8% SDS-PAGE凝胶(因分子量较大),恒压80V浓缩胶、120V分离胶,转膜选用0.45μm PVDF膜(300mA恒流2小时); 抗体孵育:一抗1:1000稀释(5% BSA+TBST),4℃孵育过夜,HRP标记二抗(山羊抗兔)1:5000室温孵育1小时,曝光时间60-90秒。 IHC-P组织染色(肿瘤样本): 抗原修复:采用柠檬酸钠缓冲液(pH6.0) 沸水浴修复15分钟,自然冷却至室温; 阳性定位:细胞核/细胞质呈棕黄色颗粒状阳性,肿瘤组织中表达强度高于癌旁组织; 对照设置:需包含JMJD1B高表达细胞系(如LNCaP) 和阴性对照(空白抗体或敲除组织)。 IF细胞定位: 固定条件:4%多聚甲醛室温固定15分钟,0.3% Triton X-100透化10分钟; 荧光标记:Alexa Fluor 488偶联二抗(1:1000),DAPI染核,共聚焦显微镜下观察核内点状分布。 公司正在出售的产品
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