867 query 862:SGQMKMFQEVS: 872 sp|P40189|IL6RB_HUMAN[1] 862:SGQMKMFQEVS: 872 sp|P40190|IL6RB_RAT[1] 862:SEQRRLFQEGS: 872 sp|Q00560|IL6RB_MOUSE[1] 861:SEQRRLFQEGS: 871