Hemoglobin Loves Park [β68 (E12) Leu→Phe]: Report of five cases including one originating from a de novo mutation

Cristina Ferreira, James Hoyer, Armandina Miranda, Isabel Picanço, Vanda Almendra, Maria Teresa Seixas, Teresa Almeida, Luísa Romão, Paula Faustino

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Hemoglobin (Hb) Loves Park [β68 (E12) Leu→Phe] was identified in a 2-year-old Portuguese boy with anemia, microcytosis, and hypochromia. This Hb variant was detected by isoelectric focusing and quantified by reverse-phase high-performance liquid chromatography (HPLC) (48.4%), and the DNA mutation was identified by HBB (β-globin gene) sequencing. Hematological and biochemical analyses performed on his parents revealed normal hematological parameters and normal hemoglobin and globin chain profiles. DNA sequence analysis of the HBB gene of both parents showed the absence of the Hb Loves Park mutation. Study of the haplotypes in the β-globin gene cluster confirmed parenthood. Moreover, paternity was confirmed by the study of nine short tandem repeats (STRs) and four variable-number tandem repeat (VNTRs) loci. The most likely explanation for these results is that the Hb Loves Park mutation has occurred de novo in this family. The original American cases of Hb Loves Park, from a family of Italian origin, which were never published, as well as two additional cases, are also included in this report. Functional studies revealed that Hb Loves Park is stable and has a decreased oxygen affinity.

Original languageEnglish (US)
Pages (from-to)256-261
Number of pages6
JournalAmerican Journal of Hematology
Volume81
Issue number4
DOIs
StatePublished - Apr 1 2006

Fingerprint

Globins
Mutation
Hemoglobins
Parents
Paternity
Minisatellite Repeats
Isoelectric Focusing
Reverse-Phase Chromatography
Multigene Family
DNA Sequence Analysis
Microsatellite Repeats
Haplotypes
Genes
Anemia
High Pressure Liquid Chromatography
hemoglobin Loves Park
Oxygen
DNA

Keywords

  • De novo mutation
  • HBB gene
  • Hemoglobin variant
  • Hemoglobinopathies

ASJC Scopus subject areas

  • Hematology

Cite this

Hemoglobin Loves Park [β68 (E12) Leu→Phe] : Report of five cases including one originating from a de novo mutation. / Ferreira, Cristina; Hoyer, James; Miranda, Armandina; Picanço, Isabel; Almendra, Vanda; Seixas, Maria Teresa; Almeida, Teresa; Romão, Luísa; Faustino, Paula.

In: American Journal of Hematology, Vol. 81, No. 4, 01.04.2006, p. 256-261.

Research output: Contribution to journalArticle

Ferreira, C, Hoyer, J, Miranda, A, Picanço, I, Almendra, V, Seixas, MT, Almeida, T, Romão, L & Faustino, P 2006, 'Hemoglobin Loves Park [β68 (E12) Leu→Phe]: Report of five cases including one originating from a de novo mutation', American Journal of Hematology, vol. 81, no. 4, pp. 256-261. https://doi.org/10.1002/ajh.20548
Ferreira, Cristina ; Hoyer, James ; Miranda, Armandina ; Picanço, Isabel ; Almendra, Vanda ; Seixas, Maria Teresa ; Almeida, Teresa ; Romão, Luísa ; Faustino, Paula. / Hemoglobin Loves Park [β68 (E12) Leu→Phe] : Report of five cases including one originating from a de novo mutation. In: American Journal of Hematology. 2006 ; Vol. 81, No. 4. pp. 256-261.
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