Recombinant E. coli Tetracycline repressor protein class E (tetR) is a purified Recombinant Protein. Purity: >90% as determined by SDS-PAGE. Host: E. coli. Endotoxin Level: Not Tested. Species: E. coli. Target Name: Tetracycline repressor protein class E (tetR) . Accession Number: P21337, tetR. Expression Region: 1-211aa. Tag Info: N-terminal 6xHis-tagged. Theoretical MW: 27.7kda Restrictions: For Research Use Only. Not for use in diagnostic procedures.