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H0266

Sigma-Aldrich

Hemoglobin A2, Ferrous Stabilized human

lyophilized powder

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About This Item

Numéro CAS:
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352202
eCl@ss :
42030116
Nomenclature NACRES :
NA.61

Source biologique

human

Niveau de qualité

Pureté

97-100% (agarose gel electrophoresis)

Forme

lyophilized powder

Technique(s)

immunofluorescence: suitable

Adéquation

suitable for electrophoresis and chromatography standard

Numéro d'accès UniProt

Température de stockage

−20°C

Informations sur le gène

human ... HBA2(3040)

Description générale

Hemoglobin A2 (HBA2) is mapped to human chromosome 16p13.3. HBA2 is a minor hemoglobin component and comprises of two α and δ chains.
Hemoglobin is the major component of red blood cells, and is responsible for their red color. Its normal concentration in erythrocytes is 34%. Hemoglobin is the most important respiratory protein of vertebrates by virtue of its ability to transport oxygen from the lungs to body tissues, and to facilitate the return transport of carbon dioxide.
has not been tested for functional equivalence against native preparations (unlyophilized ferrous hemoglobins).

Application

Hemoglobin A2 was used in the determination of fetal hemoglobin by time-resolved immunofluorometric assay.
Hemoglobin A2, Ferrous Stabilized human has been used as a reference in reversed-phase high-performance liquid chromatography for quantifying δ-globin elution profile. It has also been used as calibrator in isotope dilution mass spectrometry (IDMS) measurements.

Actions biochimiques/physiologiques

Elevated levels of Hemoglobin A2 (HBA2) is observed in patients with β-thalassemia trait.

Conditionnement

Package size indicates the amount of hemoglobin as determined by the procedure of Drabkin, D.L., J. Biol. Chem., 164, 703 (1946).

Reconstitution

When reconstituted with buffer, gives >90% ferrous hemoglobin.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Elevated hemoglobin A2 as a marker for beta-thalassemia trait in pregnant women
Ou Z, et al.
The Tohoku Journal of Experimental Medicine, 223(3), 223-226 (2011)
Determination of HbA2 by quantitative bottom-up proteomics and isotope dilution mass spectrometry
Arsene C, et al.
Clinica Chimica Acta; International Journal of Clinical Chemistry, 487, 318-324 (2018)
Saqib Hussain Ansari et al.
JPMA. The Journal of the Pakistan Medical Association, 62(12), 1314-1317 (2013-07-23)
To screen immediate family members of thalassaemia patients for carrier identification and counselling. The cross-sectional study was conducted at an urban thalassaemia treatment and prevention centre in Karachi, Pakistan, from January to December 2008, and involved 188 siblings of 100
Rapid and Sensitive Assessment of Globin Chains for Gene and Cell Therapy of Hemoglobinopathies
Loucari C, et al.
Human Gene Therapy Methods, 29(1), 60-74 (2018)
Burçin Nalbantoğlu et al.
Pediatric hematology and oncology, 29(5), 472-478 (2012-08-08)
Iron deficiency (IDA) and beta thalassemia trait (TT) are the most common causes of hypochromia and microcytosis. Many indices have been defined to quickly discriminate these similar entities via parameters obtained from automated blood cell analyzers. However, studies in the

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