We report the identification of a novel HLA-DRB1*11 using sequence-based typing. This new allele, officially named DRB1*1150, was detected while performing HLA-DRB1 high-resolution typing of a candidate for bone marrow transplantation. DRB1*1150 is identical to DRB1*1143 except at nucleotides 200 and 227, where a T is substituted by a C and a T by an A, respectively. These differences give rise to two amino acid substitutions at codons 38 (Val-->Ala) and 47 (Phe-->Tyr).