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公司新闻
Chondrex 免疫级人III型胶原 Human Type III Collagen Cat#1305
发布时间:2024-01-31 11:25 | 点击次数:
免疫级人III型胶原
Immunization Grade Human Type III Collagen
Immunization Grade Human Type III Collagen
Cat#1305
产品说明 | 通过盐沉法从胃蛋白酶溶解的胎盘中纯化人Ⅲ型胶原III型胶原由三条α1(III)链组成,呈三螺旋结构,分布于皮肤、肝脏、肺和肠道等结缔组织中,与I型胶原一起构成间质基质结构。因此,III型胶原被认为是I型胶原的次要伴生胶原,I型胶原是组织中的主要胶原(1)。Ⅲ型胶原参与支架和瘢痕组织的形成,其在正常组织中的含量通常很低。然而,在伤口愈合条件下,I型胶原与III型胶原的比例达到1:2,导致拉伸强度损失(2)。因此,免疫Ⅲ型胶原可以作为研究伤口愈合机制和结缔组织相关疾病的有用工具。 |
应用 | 作为免疫原免疫动物产生抗体,用于ELISA实验中的抗原检测III型胶原抗体,或者凝胶分析中的标准品。 |
规格 | 1mg |
形态 | 冻干粉 |
来源 | 人胎盘 |
分子量 | 300kDa |
纯度 | >90% (I型胶原成分少于10%) |
应用 | III型胶原可在酸性缓冲液中以4 mg/ml溶解,例如0.01-0.05M醋酸,pH 3.0-3.3或0.15M柠檬酸盐缓冲液,pH 3.6,在4℃下混合过夜。为了中和溶液,添加1/10体积的10倍中性缓冲液(含1.5M NaCl)或用中性缓冲液透析溶液。 |
保存 | 冻干粉4℃避光保存,稀释后-20℃保存。胶原会在中性条件下逐渐降解。 |
稳定性 | 冻干粉2年 |
参考文献 | 1. S. El, F. Yano, S. Mittal, C. Filipi, Collagen metabolism and recurrent hiatal Hernia: cause and effect? Hernia 10, 511-20 (2006). 2. D. Friedman, C. Boyd, P. Norton, R. Greco, A. Boyarsky, et al., Increases in type III collagen gene expression and protein synthesis in patients with inguinal hernias. Ann Surg 218, 754-60 (1993). 3. T. Hayashi, Y. Nagai, Separation of the alpha chains of type I and III collagens by SDS-polyacrylamide gel electrophoresis. J Biochem 86, 453-9 (1979). |
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