产品说明
一般描述
Protein G, a cell wall protein, is obtained from group G streptococci. The extracellular part of this protein is made of two/three small domains or serum albumin binding (GA domains) and two/three immunoglobulin (IgG) binding domains (B domains).
Genetically engineered truncated protein G; retains affinity for IgG, but lacks albumin and Fab binding sites and membrane-binding regions.
应用
Protein G′ from Streptococcus sp. has been used in in vitro actin labeling assay.
生化/生理作用
Protein G can bind all the human and mouse IgG subclasses. It can bind to both the fragment crystallizable (Fc) and antigen-binding fragment (Fab) components of the antibody.
外形
lyophilized powder in a Tris-HCl buffer, pH 7.5
基本信息
MDL编号 | MFCD00132110 |
NACRES | NA.26 |
产品性质
质量水平 | 100 |
生物来源 | bacterial (Streptococcus sp.) |
重组 | expressed in E. coli |
形式 | lyophilized solid |
分子量 | ~20 kDa |
容量 | ~5 mg/mg, solid binding capacity (IgG) |
储存温度 | −20℃ |
安全信息
储存分类代码 | 13 - Non Combustible Solids |
WGK | WGK 3 |
闪点(F) | Not applicable |
闪点(C) | Not applicable |
个人防护装备 | Eyeshields, Gloves, type N95 (US) |
Sigma-Aldrich