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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
常温,避光
- 克隆性:
单克隆
- 抗体名:
IFNGR1 / CD119抗体
Reagents : PE-conjugated mouse monoclonal antibody
Clone ID : 05
抗体宿主 : Mouse IgG1
Concentration : 5 μl/Test, 0.1 mg/ml
缓冲液 : Aqueous solution containing 0.5% BSA and 0.09% sodium azide
制备方法 : This antibody was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified, recombinant Human IFNGR1 / CD119 (rh IFNGR1 / CD119; Catalog#10338-H08H; NP_000407.1; Met1-Gly245) and conjugated with PE under optimum conditions, the unreacted PE was removed.
IFNGR1 / CD119抗体 Background
The protein IFN-γR1 (IFNGR1) is the ligand-binding chain (alpha) of the high-affinity interferon gamma receptor complex which is a heterodimer of IFN-γ R1 (IFN-γ Rα) and IFN-γ R2 (IFN-γ Rβ). IFN-γ R1 is necessary and sufficient for IFN-γ binding and receptor internalization, whereas IFN-γ R2 is required for IFN-γ signal transduction, but does not bind IFN-γ by itself. IFN-γ R1 is constitutively expressed in most cell types and soluble IFN-γ R1 has been detected in biological fluids. Human IFN-γ R1 cDNA encodes a 499 aa residue protein consisting of a 17 aa signal peptide, a 228 aa extracellular domain, a 23 aa transmembrane domain, and a 221 aa intracellular domain. Upon binding to IFN-γ receptor via its C-terminus, the type II interferon IFN gamma triggers multiple intracellular signalling processes including prevention of viral replication, inhibition of cell growth, modulation of cell differentiation, and induction of growth arrest at mid-G1 in different mammary carcinoma cell lines. A genetic variation or deficiency in IFN-γR1 is associated with susceptibility to Helicobacter pylori infection or mycobacterial disease.
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文献和实验(杨希峰),Yang CY(杨春瑛) et al. Generation and characterization of monoclonal antibody against HIT3a (抗CD3单克隆抗体HIT3a的制备和特异性鉴定), Acta Academiae Medicinae Sinicae (中国医学科学院学报),1993, 15:157-162.[6] Xiong D S(熊冬生),Yang C Z(杨纯正),Shao X F(邵晓枫)et al. Generation
因为抗体的结合而减少;在人体血清中无游离的CD20存在;最重要的是B淋巴细胞瘤上的CD20少有内吞和脱落的发生[ 2-5 ] 。1997年,以CD20为靶点的嵌合抗CD20单克隆抗体Rituxan已获准应用于B细胞淋巴瘤的治疗[ 6 ]。HI47(IgG3)是我所于1990年研制成功的国内第一个抗CD20鼠源性单克窿抗体,第四届国际人类白细胞分化抗原会议将HI47命名为CD20+X[ 7 ] 。我们利用噬菌体显示技术从HI47杂交瘤细胞中克隆到抗CD20抗体HI47可变区基因,将该基因构建成为嵌合的抗
20B淋巴细胞表面的膜蛋白CD20对B淋巴细胞的增殖和分化具有调节作用[1]。由于CD20分子仅在前-B淋巴细胞、未成熟B淋巴细胞、成熟B淋巴细胞、激活B淋巴细胞中表达,而在浆细胞、淋巴多能干细胞以及其它组织均无CD20的表达[2,3,4],在人体血清中亦无游离CD20的存在[5],因此CD20可作为B淋巴细胞瘤治疗的一个理想治疗靶点。限制抗体临床使用的因素主要有抗体产生的免疫原性和抗体的生产能力是否能够满足临床需要。第四届国际人类白细胞分化抗原会议将鼠源性单克隆抗CD20抗体HI47(IgG3)正式命名为CD20+X
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