I would need more information before I could accurately answer that question. But, in a nutshell, whether or not a bacteria is able to express a protein (or in this case, protein fragment) depends greatly on that protein's structure. For example, when the first recombinant insulin was made, chains A and B were inserted into E. coli, and the Cys-Cys disulphide bonds that connected the 2 chains were formed using chemistry. A complete recombinant insulin protein was not created until it was inserted into yeast, which, being eukaryotes, have the necessary cellular machinery to form disulphide bonds.
So, if the peptide sequence doesn't have any post-translation modifications, it's a definite yes, it can be inserted and extracted from bacteria. If it does, then no, bacteria would be a poor host for this peptide. However, yeast might be a good substitute.