H2BC13 and systemic lupus erythematosus: HIST1H4M, HIST1H2BL, HIST1H4B, HIST1H2AIL, HIST2H3C2, HIST3H2A, HIST3H2BB, HIST1H2AN and HIST2H4 have been suggested to be involved in systemic lupus erythematosus disease (Cozzani et al., 2014).