Molecular characterization of a rare hemoglobin variant: Hb-Hinsdale: beta139(H17)ASN-->Lys.

: The authors describe the characteristics of a rare hemoglobin mutant found in a young female. She carries the aminoacid replacement of Hb-Hinsdale:beta139(H17)ASN-->Lys, which was identified at molecular level. This case, clinically and hematologically symptomless, is identical, but genetically independent, to the cases first described in an American family.