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Nuinoon M, Jeenduang N, Kesornsit A, Horpet D, Plyduang T. Hematological and Molecular Characterization of a Novel Hb A2Variant with Homozygous α-Thalassemia-2 in a Southern Thai Individual. Hemoglobin 2017; 41:213-215. [DOI: 10.1080/03630269.2017.1345760] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Manit Nuinoon
- Human Genetics Research Unit, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Nutjaree Jeenduang
- Human Genetics Research Unit, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Aumpika Kesornsit
- Human Genetics Research Unit, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Dararat Horpet
- Center for Scientific and Technological Equipment, Walailak University, Nakhon Si Thammarat, Thailand
| | - Thunyaluk Plyduang
- Center for Scientific and Technological Equipment, Walailak University, Nakhon Si Thammarat, Thailand
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Dehghani SJ, Amiri Dashtarzhen A, Nasirabadi S, Dehbozorgian J, Afrasiabi AR, Morshedi N, Imanifard J, Mehrpoor S, Gerdabi J, Karimi M. Combined α-thalassemia and Hemoglobin J-Iran (β77 His → Asp). A Family Study in southern Iran. IRANIAN RED CRESCENT MEDICAL JOURNAL 2011; 13:586-9. [PMID: 22737531 PMCID: PMC3371998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2010] [Accepted: 04/11/2011] [Indexed: 11/08/2022]
Abstract
We report a 23-year-old man and three members of his family with Hb J-Iran confirmed by electrophoresis, chain separation by high performance liquid chromatography and sequencing. Alpha thalassemia was also confirmed in two family members. The substitution at β77 led to a higher negative charge of the βJ-Iran subunit, which enhanced its electrostatic attraction for the normal positively-charged α subunit. Therefore, more Hb J-Iran than Hb A forms in the red blood cells of heterozygotes. In α-thalassemia, the more attractive βJ-Iran subunit outcompetes βA subunits in forming assemblies with deficient α subunits, so even more Hb J-Iran was formed.
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Affiliation(s)
- S J Dehghani
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - A Amiri Dashtarzhen
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Sh Nasirabadi
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - J Dehbozorgian
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - A R Afrasiabi
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - N Morshedi
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - J Imanifard
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Sh Mehrpoor
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - J Gerdabi
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - M Karimi
- Hematology Research Center, Shiraz University of Medical Science, Shiraz, Iran,Correspondence: Mehran Karimi, MD, Professor of Pediatric Hematology-Oncology, Hematology Research Center, Nemazee Hospital, Shiraz, Iran. Tel.: +98-711-6473239, Fax: +98-711-6473239, E-mail:
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Rodriguez Romero WE, Castillo M, Chaves MA, Saenz GF, Gu LH, Wilson JB, Baysal E, Smetanina NS, Leonova JY, Huisman THJ. Hb Costa Rica or α2β277(EF1)His→Arg: The first example of a somatic cell mutation in a globin gene. Hum Genet 1996. [DOI: 10.1007/bf02346198] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bircan I, Güven AG, Yegin O, Plaseska D, Wilson JB, Ramachandran M, Huisman TH. Hb N-Baltimore [alpha 2 beta 2(95)(FG2)Lys----Glu] and Hb J-Iran [alpha 2 beta 2(77)(Ef1]His----Asp] observed in a Turkish family from Antalya. Hemoglobin 1990; 14:453-7. [PMID: 2283300 DOI: 10.3109/03630269009032007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- I Bircan
- Department of Pediatrics, Medical School of Akdeniz University, Antalya, Turkey
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