851 query 846:VRLKQQISDHI: 856 sp|P40189|IL6RB_HUMAN[1] 846:VRLKQQISDHI: 856 sp|P40190|IL6RB_RAT[1] 845:VRLKQQVSDHI: 856 sp|Q00560|IL6RB_MOUSE[1] 844:VRLKQQVSDHI: 855