Part:BBa_K5382106:Design
z domain-protein domain
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
Source
The z domain is derived from the B domain of protein A[1]. Protein A is a protein widely found on the cell wall of Staphylococcus aureus. The extracellular portion of protein A contains five highly homologous IgG binding domains, named E, D, A, B, and C from the N-terminal, each containing approximately 58 amino acid residues. The z domain is an engineered analogue of the B domain, originally developed as an affinity purification treatment for fusion protein production. In contrast to the B domain, the z domain contains two amino acid substitutes (Ala1→Val and Gly29→Ala).
Reference
[1]Langone, J. J., Boyle, M. D. & Borsos, T. Studies on the interaction between protein A and immunoglobulin G. II. Composition and activity of complexes formed between protein A and IgG. J. Immunol. 121, 333–338 (1978).