Recombinant Enterobacteria phage H19B Shiga-like toxin 1 subunit B (stxB) is a purified Recombinant Protein. Purity: >85% as determined by SDS-PAGE. Host: E. coli. Endotoxin Level: Not Tested. Species: Enterobacteria phage H19B (Bacteriophage H19B). Target Name: Shiga-like toxin 1 subunit B (stxB) . Accession Number: P69179, stxB. Expression Region: 21-89aa. Tag Info: N-terminal 6xHis-tagged. Theoretical MW: 11.7kda. Target Synonyms: Verocytotoxin 1 subunit B Restrictions: For Research Use Only. Not for use in diagnostic procedures.