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Ropero Gradilla P, Raya JM, González FA, Rochas S, Ferrer-Benito S, Nieto JM, Martín-Santos T, Barrios M, Gutiérrez-Murillo L, Villegas A, Benavente C. Hb Nivaria: A New Hemoglobin Variant with a Shortened α-Globin Chain [ α139(HC1)Lys →Stop; HBA1: c.418A>T]. Hemoglobin 2022; 46:344-346. [PMID: 36847654 DOI: 10.1080/03630269.2023.2172430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
We report a novel hemoglobin (Hb) variant found in a Spanish individual from Santa Cruz de Tenerife, the Canary Islands in Spain. The proband was a 39-year-old male. High performance liquid chromatography (HPLC) displayed an unknown peak (19.3%) at a retention time of 1.3 min. eluting before Hb A0. Capillary zone electrophoresis (CZE) showed an abnormal peak (20.0%) in zone 12. Direct DNA sequencing of the α-globin genes revealed heterozygosity for a nonsense mutation at codon 139 (AAA>TAA), causing a lysine to stop codon substitution [α139(HC1)Lys→Stop; HBA1: c.418A>T]. We decided to name the variant Hb Nivaria (Tenerife) for the place of birth and residence of the proband.
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Affiliation(s)
- Paloma Ropero Gradilla
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
| | - José María Raya
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Islas Canarias, España
| | - Fernando Ataúlfo González
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
| | - Sara Rochas
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
| | - Sara Ferrer-Benito
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
| | - Jorge M Nieto
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
| | - Taida Martín-Santos
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Islas Canarias, España
| | - Marcelo Barrios
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Islas Canarias, España
| | - Lorena Gutiérrez-Murillo
- Servicio de Hematología y Hemoterapia, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Islas Canarias, España
| | - Ana Villegas
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España
| | - Celina Benavente
- Servicio de Hematología y Hemoterapia. Hospital Clínico San Carlos, Madrid, España.,Instituto de Investigación Sanitaria Hospital Clínico San Carlos, Madrid, España
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2
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Efstathiou A, Boutou E, Teli A, Drikos I, Balassopoulou A, Theodoridou S. A New Hemoglobin Variant, Hb Natal ( HBA1: c.423C>A), Found in a Greek Family. Hemoglobin 2022; 46:132-136. [PMID: 36000508 DOI: 10.1080/03630269.2022.2086134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The rare hemoglobin (Hb) variant Hb Natal [α140(HC2)Tyr-Arg→0 (HBA2: c.423C>A)], detected on the α2-globin gene, is characterized by a shortened polypeptide chain because of a premature stop codon formation in codon 140. Here, we report identification of the same genetic variation but in the corresponding position of the α1-globin gene, in a heterozygous state, in five members of a Greek family. All carriers of Hb Natal (ααNatal/αα) present with mild hematological and no clinical findings. This innocuous Hb variant was initially detected, in the context of the national prevention program for hemoglobinopathies, by high performance liquid chromatography (HPLC) and capillary electrophoresis (CE). Identification of the variant was performed by molecular analysis of the α-globin genes. This is the first description of a heterozygous Hb Natal in a Greek family, and the first description of this genetic variant on the HBA1 gene, worldwide.
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Affiliation(s)
- Anna Efstathiou
- Haemoglobinopathy Prevention Unit, Hippokration Hospital of Thessaloniki, Thessaloniki, Greece
| | - Effrossyni Boutou
- Thalassaemia National Center of Greece, Laikon General Hospital of Athens, Athens, Greece
| | - Aikaterini Teli
- Haemoglobinopathy Prevention Unit, Hippokration Hospital of Thessaloniki, Thessaloniki, Greece
| | | | - Angeliki Balassopoulou
- Thalassaemia National Center of Greece, Laikon General Hospital of Athens, Athens, Greece
| | - Stamatia Theodoridou
- Haemoglobinopathy Prevention Unit, Hippokration Hospital of Thessaloniki, Thessaloniki, Greece
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3
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4
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5
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7
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Low Quantities of Hb Boyle Heights or α26(A4)ASP→Oβ2Observed in Three Members of a Caucasian Family. Hemoglobin 2009. [DOI: 10.3109/03630269009046972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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9
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Efremov GD. Forty-four years (1955-1999) devoted to hemoglobin research: Titus H. J. Huisman (1923-1999). Hemoglobin 2001; 25:125-68. [PMID: 11480778 DOI: 10.1081/hem-100104025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- G D Efremov
- Macedonian Academy of Sciences and Arts, Research Center for Genetic Engineering and Biotechnology, Skopje, Republic of Macedonia.
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11
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12
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Affiliation(s)
- B B Webber
- Laboratory of Protein Chemistry, Medical College of Georgia, Augusta 30912-2100
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13
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Efremov GD, Josifovska O, Nikolov N, Codrington JF, Oner C, Gonzalez-Redondo JM, Huisman TH. Hb Icaria-Hb H disease: identification of the Hb Icaria mutation through analysis of amplified DNA. Br J Haematol 1990; 75:250-3. [PMID: 2372512 DOI: 10.1111/j.1365-2141.1990.tb02658.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hb Icaria-Hb H disease was observed in a Yugoslavian teenager who exhibited moderate anaemia with severe microcytosis and hypochromia and 16% Hb H. Four of his relatives were Hb Icaria heterozygotes; their haematological data were comparable to those with a deletional type of alpha-thalassaemia-2. The patient also had an additional alpha-thalassaemia-1 deletion, an approximately 20.5 kb deletion, common among Mediterranean populations. The Hb Icaria mutation, i.e. the TAA----AAA mutation at codon 142, was identified by hybridization of amplified DNA with specific probes. The mutation is located on the alpha 2-globin gene; the one remaining alpha 1-globin gene is apparently able to compensate sufficiently for the loss of the three alpha-globin genes to maintain a haemoglobin level of 8-9 g/dl.
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Affiliation(s)
- G D Efremov
- Macedonian Academy of Sciences and Arts, Research Center for New Technologies, Skopje, Yugoslavia
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Harkness M, Harkness DR, Kutlar F, Kutlar A, Wilson JB, Webber BB, Codrington JF, Huisman TH. Hb Sun Prairie or alpha(2)130(H13)Ala----Pro beta 2, a new unstable variant occurring in low quantities. Hemoglobin 1990; 14:479-89. [PMID: 2079430 DOI: 10.3109/03630269009005801] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A severe hemolytic anemia with microcytosis and hypochromia was present in a young adopted Indian patient. Reversed phase high performance liquid chromatographic methodology and heat stability tests detected an unstable alpha chain which was present in 3 to 5% of the total hemoglobin. A larger quantity of the alpha X chain was obtained by preparative reversed phase high performance liquid chromatography. Structural analyses identified an Ala----Pro replacement at position 130 of the alpha chain. The instability of the variant, named Hb Sun Prairie, is comparable to that of Hb Bibba [alpha 136 (H19)Leu----Pro]. Gene mapping failed to detect an alpha-thalassemia deletion (alpha alpha/alpha alpha), while dot-blot analysis of amplified DNA with synthetic probes localized a G----C mutation in codon 130 (resulting in the Ala----Pro mutation) of the alpha 2-globin genes of both chromosomes. These results suggest a homozygosity for the G----C mutation and the condition alpha 2(G----C)alpha 1/alpha 2(G----C)alpha 1 adequately explains the rather severe clinical status of this child, including the marked microcytosis and hypochromia. Unfortunately, family studies to exclude the presence of a large deletion involving all zeta- and alpha-globin genes were not possible.
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Affiliation(s)
- M Harkness
- Department of Pediatrics, University of Wisconsin, Madison 53792
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Hatfield DL, Smith DW, Lee BJ, Worland PJ, Oroszlan S. Structure and function of suppressor tRNAs in higher eukaryotes. Crit Rev Biochem Mol Biol 1990; 25:71-96. [PMID: 2183969 DOI: 10.3109/10409239009090606] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- D L Hatfield
- Laboratory of Experimental Carcinogenesis, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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Codrington JF, Codrington FA, Wisse JH, Wilson JB, Webber BB, Wong SC, Huisman TH. Hb Chad or alpha 223(B4)Glu----Lys beta 2 observed in members of a Surinam family in association with alpha-thalassemia-2 and with Hb S. Hemoglobin 1989; 13:543-56. [PMID: 2606723 DOI: 10.3109/03630268908993105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three different hemoglobinopathies, i.e. Hb S, Hb Chad [alpha 23 (B4)Glu----Lys], and alpha-thalassemia-2 (-3.7) have been observed in eight members of a family from Surinam. The proposita had all three abnormalities, while her mother and four of her half-brothers had Hb Chad together with an alpha-thalassemia-2 heterozygosity or homozygosity. Gene mapping and dot-blot analysis of amplified DNA identified a G----A mutation in codon 23 of the alpha 2 alpha 1 hybrid gene resulting in the Glu----Lys substitution. The quantity of the alpha-Chad chain averaged 31.5% in its carriers with an additional alpha-thalassemia-2 heterozygosity [-alpha Chad(-3.7 kb)/alpha alpha], and 43% in the two carriers with an additional alpha-thalassemia-2 homozygosity [-alpha Chad (-3.7 kb)/-alpha (3.7 kb)]. These quantities are considerably higher than those reported for families from Chad, China, and Japan; the low levels of 14.5-24% Hb Chad in members of previously reported cases suggest a mutation on a chromosome with two alpha-globin genes [alpha alpha Chad/alpha alpha or alpha Chad alpha/alpha alpha].
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Affiliation(s)
- J F Codrington
- Department of Cell and Molecular Biology, Medical College of Georgia, Augusta 30912-2100
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Wilson JB, Webber BB, Kutlar A, Reese AL, McKie VC, Lutcher CL, Felice AE, Huisman TH. Hb Evans or alpha 262(E11)Val----Met beta 2; an unstable hemoglobin causing a mild hemolytic anemia. Hemoglobin 1989; 13:557-66. [PMID: 2606724 DOI: 10.3109/03630268908993106] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Structural analysis of the alpha chain of the hemoglobin from a Caucasian female with a mild hemolytic anemia showed the presence of a variant with a Val----Met substitution at position alpha 62. The valine at this position forms one of the contacts with heme and its replacement by methionine will likely decrease heme binding and cause a distortion of the heme crevice and a decreased stability of the abnormal protein. Dot-blot analysis of amplified DNA with 32P-labeled synthetic oligonucleotide probes confirmed the suspected G----A mutation in the first position of codon 62, and also located the mutation in the alpha 2-globin gene. The mutation was found in the proposita and one of her daughters but was most probably absent in her parents.
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Affiliation(s)
- J B Wilson
- Department of Cell and Molecular Biology, Medical College of Georgia, Augusta 30912
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