839 query 834:SKQVSSVNEED: 844 sp|P40189|IL6RB_HUMAN[1] 834:SKQVSSVNEED: 844 sp|P40190|IL6RB_RAT[1] 833:SSQVPSGSEED: 843 sp|Q00560|IL6RB_MOUSE[1] 832:SNQVLSGNEED: 842