870 query 865:MKMFQEVSAAD: 875 sp|P40189|IL6RB_HUMAN[1] 865:MKMFQEVSAAD: 875 sp|P40190|IL6RB_RAT[1] 865:RRLFQEGSVAD: 875 sp|Q00560|IL6RB_MOUSE[1] 864:RRLFQEGSTAD: 874