Haptoglobin, Mixed Type [9087-69-8]
16-16-080116
Protein IDP00738
Product group Proteins / Signaling Molecules
Overview
- SupplierAthens Research
- Product NameHaptoglobin, Mixed Type [9087-69-8]
- Delivery Days Customer9
- Applications SupplierELISA, Protein Chemistry, Inflammation, Sickle Cell Anemia, Glycosylation, Stroke, Central Nervous System Injury, Diabetes, Cardiovascular Disease, In Vitro Diagnostic, Iron Metabolism, Cancer
- CertificationResearch Use Only
- Estimated Purity≥95% by SDS-PAGE
- Protein IDP00738
- Protein NameHaptoglobin
- Scientific DescriptionHaptoglobin is a major acute-phase plasma glycoprotein present at concentrations of 100–300 mg/dL, primarily synthesized in the liver. Its central function is to bind free hemoglobin released during red blood cell breakdown, thereby preventing iron loss through the kidneys and reducing hemoglobin-driven oxidative tissue damage. This hemoglobin–haptoglobin complex is rapidly cleared by macrophages via the CD163 receptor, facilitating iron recycling and modulating antioxidant and anti-inflammatory pathways. Haptoglobin also influences immune responses, interacting with neutrophils, lymphocytes, and dendritic cells to regulate inflammation and adaptive immunity. Humans exhibit three main haptoglobin phenotypes-Hp 1-1, Hp 2-1, and Hp 2-2-arising from genetic polymorphisms. Hp 1-1 demonstrates the highest hemoglobin-binding and antioxidant efficiency, while Hp 2-2 is least effective, which may explain its association with increased risk and severity of conditions such as cardiovascular disease, diabetes, and epilepsy. Notably, the Hp 2-2 phenotype is linked to poorer outcomes in coronary artery disease and more frequent epilepsy attacks, likely due to reduced antioxidant protection in neural tissues. Clinically, haptoglobin serves as a sensitive biomarker for hemolytic anemia, liver function, and as a potential prognostic marker in cancer and inflammatory diseases. Therapeutically, recombinant haptoglobin is being explored for treating hemolysis-related complications and as a neuroprotective agent following subarachnoid hemorrhage.
- Shelf life instructionmore then 1 year
- SourceSource human plasma non-reactive for HBsAG, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA approved tests.
- Storage Instruction≤ -20° C
- UNSPSC41116100
References
- Sakamoto, K., et al., (2021), 'IL-22 Controls Iron-Dependent Nutritional Immunity Against Systemic Bacterial Infections', Sci Immunol., 2(8): eaai8371Read this paper
- Miyamoto, S., et al., (2018), 'Multiple Reaction Monitoring for the Quantitation of Serum Protein Glycosylation Profiles: Application to Ovarian Cancer', J. Proteome Res., 17: pp 222−233.Read this paper
- Tamara, S., et al., (2020), 'A wealth of genotype-specific proteoforms fine-tunes hemoglobin scavenging by haptoglobin', PNAS, 117(27): pp 15554-15564.Read this paper
- Sanda, M., et al., (2020), 'Low Collision Energy Fragmentation in Structure-Specific Glycoproteomics Analysis', Anal. Chem., 92: pp 8262−8267.Read this paper
- Dziuba, N., et al., (2018), 'Low-molecular-mass iron in healthy blood plasma is not predominately ferric citrate', Metallomics, 10: pp 802.Read this paper