Identification of Hb J-Sardegna [alpha 50(CE8)His----Asp] by HPLC and its incidence in northern Sardinia.
Hemoglobin 1989;
13:33-44. [PMID:
2703364 DOI:
10.3109/03630268908998051]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
As many as 7,717 babies born consecutively and 3,412 blood donors of Sardinian ancestry have been examined for the detection of the Hb J-Sardegna variant [alpha 50(CE8)His----Asp]; all subjects were from Northern Sardinia. Hemolysates were analyzed by isoelectricfocusing and the identification of the variant was made by reversed phase high performance liquid chromatography of the tryptic peptides. A total of 28 carriers (1:397) of Hb J-Sardegna were identified. The incidence of 0.25% makes this hemoglobin one of the most common alpha-globin structural mutants in humans. The distribution of the anomaly appears to be nonhomogeneous in the island. The quantity of the variant ranged from 19 to 36%; this wide range probably reflects the co-inheritance of an alpha-thalassemia anomaly.
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