Key features and details
- Sensitivity: 0.8445 ng/ml
- Range: 6.25 ng/ml - 200 ng/ml
- Sample type: Plasma, Serum
- Detection method: Colorimetric
- Assay type: Sandwich (quantitative)
- Reacts with: Human
Product nameHuman Hemoglobin ELISA Kit
See all Hemoglobin kits
Intra-assay Sample n Mean SD CV% Overall < 10% Inter-assay Sample n Mean SD CV% Overall < 10%
Sample typeSerum, Plasma
Assay typeSandwich (quantitative)
Range6.25 ng/ml - 200 ng/ml
Sample specific recovery Sample type Average % Range Serum > 85 % - %
Assay durationMultiple steps standard assay
Species reactivityReacts with: Human
Human Hemoglobin ELISA Kit (ab157707) is sandwich ELISA kit for the quantitative measurement of Hemoglobin levels in human serum and plasma.
In this assay the Hemoglobin present in samples reacts with the anti-Hemoglobin antibodies which have been adsorbed to the surface of polystyrene microtitre wells. After the removal of unbound proteins by washing, anti-Hemoglobin antibodies conjugated with horseradish peroxidase (HRP), are added. These enzyme-labeled antibodies form complexes with the previously bound Hemoglobin. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3’,5,5’-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of Hemoglobin in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of Hemoglobin in the test sample. The quantity of Hemoglobin in the test sample can be interpolated from the standard curve constructed from the standards, and corrected for sample dilution.
Storage instructionsStore at +4°C. Please refer to protocols.
Components 1 x 96 tests 100X HRP-conjugated anti-Human Hemoglobin antibody 1 x 150µl 20X Wash Buffer Concentrate 1 x 50ml 5X Diluent Concentrate 1 x 50ml Chromogen Substrate Solution 1 x 12ml Human Hemoglobin Calibrator (lyophilized) 1 vial Human Hemoglobin ELISA Microplate 1 unit Stop Solution 1 x 12ml
FunctionInvolved in oxygen transport from the lung to the various peripheral tissues.
Tissue specificityRed blood cells.
Involvement in diseaseDefects in HBA1/HBA2 may be a cause of Heinz body anemias (HEIBAN) [MIM:140700]. This is a form of non-spherocytic hemolytic anemia of Dacie type 1. After splenectomy, which has little benefit, basophilic inclusions called Heinz bodies are demonstrable in the erythrocytes. Before splenectomy, diffuse or punctate basophilia may be evident. Most of these cases are probably instances of hemoglobinopathy. The hemoglobin demonstrates heat lability. Heinz bodies are observed also with the Ivemark syndrome (asplenia with cardiovascular anomalies) and with glutathione peroxidase deficiency.
Defects in HBA1/HBA2 are the cause of alpha-thalassemia (A-THAL) [MIM:604131]. The thalassemias are the most common monogenic diseases and occur mostly in Mediterranean and Southeast Asian populations. The hallmark of alpha-thalassemia is an imbalance in globin-chain production in the adult HbA molecule. The level of alpha chain production can range from none to very nearly normal levels. Deletion of both copies of each of the two alpha-globin genes causes alpha(0)-thalassemia, also known as homozygous alpha thalassemia. Due to the complete absence of alpha chains, the predominant fetal hemoglobin is a tetramer of gamma-chains (Bart hemoglobin) that has essentially no oxygen carrying capacity. This causes oxygen starvation in the fetal tissues leading to prenatal lethality or early neonatal death. The loss of three alpha genes results in high levels of a tetramer of four beta chains (hemoglobin H), causing a severe and life-threatening anemia known as hemoglobin H disease. Untreated, most patients die in childhood or early adolescence. The loss of two alpha genes results in mild alpha-thalassemia, also known as heterozygous alpha-thalassemia. Affected individuals have small red cells and a mild anemia (microcytosis). If three of the four alpha-globin genes are functional, individuals are completely asymptomatic. Some rare forms of alpha-thalassemia are due to point mutations (non-deletional alpha-thalassemia). The thalassemic phenotype is due to unstable globin alpha chains that are rapidly catabolized prior to formation of the alpha-beta heterotetramers.
Note=Alpha(0)-thalassemia is associated with non-immune hydrops fetalis, a generalized edema of the fetus with fluid accumulation in the body cavities due to non-immune causes. Non-immune hydrops fetalis is not a diagnosis in itself but a symptom, a feature of many genetic disorders, and the end-stage of a wide variety of disorders.
Sequence similaritiesBelongs to the globin family.
modificationsThe initiator Met is not cleaved in variant Thionville and is acetylated.
- Information by UniProt
- 3-prime alpha-globin gene
- A gamma globin
- Alpha 1 globin
ab157707 has been referenced in 11 publications.
- Williams J et al. Fit-for-purpose biomarker LC-MS/MS qualification for the quantitation of very long chain fatty acids in human cerebrospinal fluid. Bioanalysis 12:143-158 (2020). Human . PubMed: 32052644
- Wood J et al. Characterization of Isolated Extracts from Justicia Plant Leaves used as Remedy for Anemia. Molecules 25:N/A (2020). PubMed: 31991819
- Mabrouk OS et al. Quantitative Measurements of LRRK2 in Human Cerebrospinal Fluid Demonstrates Increased Levels in G2019S Patients. Front Neurosci 14:526 (2020). PubMed: 32523511
- Joilin G et al. Identification of a potential non-coding RNA biomarker signature for amyotrophic lateral sclerosis. Brain Commun 2:fcaa053 (2020). PubMed: 32613197
- Magliozzi R et al. Iron homeostasis, complement, and coagulation cascade as CSF signature of cortical lesions in early multiple sclerosis. Ann Clin Transl Neurol 6:2150-2163 (2019). PubMed: 31675181