Biotin-Streptavidin System: The Golden Tool for Protein Research
Biotin, also known as vitamin H or B7, is a water-soluble vitamin with a molecular weight of 244 Da. Its core feature lies in its strong non-covalent interaction with streptavidin-like proteins—its dissociation constant with streptavidin is 10⁻¹⁴ M, providing an affinity that is 10³-10⁶ times ...
危险品化学品经营许可证（带存储）