Protein A agarose resin consists of rProtein A covalently bound to cross-linked agarose beads. It provides a very stable bond that can greatly minimize leakage of the Protein A allowing for reuse of the affinity resin in several purification steps. Protein A Agarose resin is available in bulk from 5-100 ml quantities.
Protein A resin is good for the purification of a wide range of Immunoglobulins of different mammalian species and also certain IgG subclasses that have no other affinity (see additional information).
Protein A is a cell wall component of Staphylococcus aureus. It consists of a single polypeptide chain shaped as a cylinder, whichcontains five antibody–binding domains. These high affinity regions are specifically bonded to Fc region of the immunoglobulins(specially IgGs of different species).
Protein A is temperature stable and it retains its native conformation even in the presence of denaturing agents.
Storage/Handling: Store at 4°C. Do not freeze.
IPTG, X-Gal and X-Gluc
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没错！最开始，Gold Biotechnology只生产这三个产品，30年后的今天，Goldbio的产品已经超过3000种，涵盖：
琼脂糖树脂
抗生素
生化试剂
缓冲液
克隆与诱导
培养基添加剂
洗涤剂
DNA蛋白质电泳
酶、抑制剂和底物
生长因子
植物研究
蛋白质表达与纯化
还原剂……
目前Goldbio最核心的产品是：荧光素钾盐，X-gluc， 双丙氨磷，草胺磷 和 X-α-gal
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