| Types | DnaRegion
|
| Roles | CDS
Coding
|
| Sequences | BBa_K1947020_sequence (Version 1)
|
Description
There is a highly specific recognition and covalent conjugation between Spytag (a peptide with 13 amino acids) and Spycatcher (a small protein consisting of 138 residues). A protein of interest with a Spytag at its N- or C-terminus is expressed in E. coli and present in bacterial lysate.This part encodes a polypeptide that can combined with Spycatcher, through a covalent bond. In our case this polypeptide will be fused with the recombinant protein which we want to purify.
Notes
This part will be fused with the recombinant protein which we want to purify.
Source
Streptococcus pyogenes fibro-nectin-binding protein FbaB contains a domain with a spontaneous isopeptide bond between Lys31 and Asp117. This domain can be splitted into two fragments: the small one is named as Spytag, while the big one is Spycatcher. Spytag is separated from the second immunoglobulin-like collagen adhesin domain (CnaB2) which is come from the fibronectin binding protein FbaB.
