hemoglobinopathies/tyrosine

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Increased tyrosine phosphorylation of band 3 in hemoglobinopathies.

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In order to investigate the tyrosine phosphorylation of band 3, we performed immunoblotting of intact red cells using anti-phosphotyrosine antibody of 21 patients with sickle cell disorders (11 SS, 5 Sbeta, 5 SC), 7 patients with beta thalassemias (5 beta thal intermedia, 2 deltabeta thal), 10

Gold nanoparticle-based tool to study protein conformational variants: implications in hemoglobinopathy.

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The size of gold nanoparticles is shown here to gradually decrease if it is allowed to grow on a protein template, and the protein is subjected to unfolding by a nonionic denaturant. The correlation between size of the gold nanoparticle formed and the plasmon frequency observed remains linear,

Diagnosis of thalassemia using fluorescence spectroscopy, auto-analyzer, and hemoglobin electrophoresis - A prospective study.

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Hemoglobinopathies (HgP) are prevalent in certain regions of the world. The World Health Organization estimated that 5% of the world's population is a carrier of the potentially pathological hemoglobin (Hb) gene.

METHODS

This study aimed to compare the

Congenital methemoglobinemia caused by Hb-MRatnagiri (beta-63CAT-->TAT, His-->Tyr) in an Indian family.

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Hb-M is a very rare hemoglobinopathy in the Indian subcontinent. We report a family with Hb-M with lifelong cyanosis from the Ratnagiri district in western India. The propositus was a 11-year-old female child with a history of increasing cyanosis exacerbated by fever and weakness. Similar complaints

Familial congenital cyanosis caused by Hb-M(Yantai)(α-76 GAC → TAC, Asp → Tyr).

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Methemoglobin (Hb-M) is a rare hemoglobinopathy in China. We hereby report on a family living in Yantai, East China, with congenital cyanosis due to Hb-M mutation. The proband, a 65-year-old female, presented 63% oxygen saturation. Both Hb-M concentration and arterial oxygen saturation remained

Hb Osler [beta 145(HC2)Tyr-->Asp] results from posttranslational modification.

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We studied two members of an African American family with erythrocytosis. An abnormal hemoglobin variant with an electrophoretic pattern on cellulose acetate similar to Hb J was identified. The oxygen dissociation curve using whole blood was biphasic, dramatically left-shifted, and hyperbolic.

Detection of Hb Setif in north Iran and the question of its origin: Iranian or multiethnic?

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Hb Setif is a rare type of hemoglobinopathy resulting from an aspartic acid to tyrosine substitution at codon 94 (GAC>TAC) of the α2-globin gene. In manual and automated hemoglobin (Hb) electrophoresis examination of the case, an unusual band was detected and the result of subsequent capillary

Involvement of phosphatases in proliferation, maturation, and hemoglobinization of developing erythroid cells.

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Production of RBCs is triggered by the action of erythropoietin (Epo) through its binding to surface receptors (Epo-R) on erythroid precursors in the bone marrow. The intensity and the duration of the Epo signal are regulated by several factors, including the balance between the activities of

High-efficiency transduction of primary human hematopoietic stem cells and erythroid lineage-restricted expression by optimized AAV6 serotype vectors in vitro and in a murine xenograft model in vivo.

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We have observed that of the 10 AAV serotypes, AAV6 is the most efficient in transducing primary human hematopoietic stem cells (HSCs), and that the transduction efficiency can be further increased by specifically mutating single surface-exposed tyrosine (Y) residues on AAV6 capsids. In the present

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