Clone HTA28 has been reported to be a rat monoclonal antibody specific to the human gene, HIST3H3, or Histone cluster 3 H3. Other suppliers describe clone HTA28 to be a rat monoclonal antibody against human HIST1H3A, or histone cluster 1 H3 family member a. Suppliers have reported additional species reactivites for the target of this clone, including bovine, hamster and mouse. Indicated applications for antibody clone HTA28 include Western blot, flow cytometry, immunofluorescence, immunocytochemistry, and immunoprecipitation.