Haptoglobin Native Protein | HP native protein

Haptoglobin protein

Cat. Num. AAA537618

• Gene Names: HP; BP; HPA1S; HP2ALPHA2
• Applications: User optimized
• Purity: > 95% pure
• Synonyms: Haptoglobin; Haptoglobin protein; MGC111141 protein; alpha polypeptide protein; HP protein; Hp2 alpha protein; beta polypeptide protein; HPT protein; HPA1S protein; HP2 alpha2 protein; HP native protein

• Host: Human
• Purity/Purification: > 95% pure
• Form/Format: Supplied as a lyophilised powder.
• Sequence Length: 406

• Applicable Applications for HP native protein: User optimized
• Source Note: Human plasma
• Protein Type: Native
• Biological Significance: An acute-phase plasma protein found in human plasma at 100-300 mg per 100 ml. Binds hemoglobin, thus preventing loss of iron through the kidneys. Humans are polymorphic for haptoglobin, with three major phenotypes. Hp 1-1 is the most common, and the most effective in binding free hemoglobin. Hp 2-2 is the least effective. This functional difference may be associated with the frequency and severity of epilepsy attacks, as researchers have found a correlation between recurring seizures and the Hp 2-2 phenotype.
• Biohazard Information: Donor samples were tested and found to be negative for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2. Nonetheless caution should be used when handling this material as there is a margin of error in all tests.
• Preparation and Storage: Aliquot and store at -20 degree C. Avoid repeated freeze/thaw cycles.

Related Product Information for HP native protein

Purified native Human Haptoglobin protein

Product Categories/Family for HP native protein

Nutrition & Metabolism; Native Protein

NCBI and Uniprot Product Information

• NCBI GI #: 386783
• NCBI GeneID: 3240
• Molecular Weight: 38,452 Da
• NCBI Official Full Name: haptoglobin
• NCBI Official Synonym Full Names: haptoglobin
• NCBI Official Symbol: HP
• NCBI Official Synonym Symbols: BP; HPA1S; HP2ALPHA2
• NCBI Protein Information: haptoglobin
• UniProt Protein Name: Haptoglobin
• Protein Family: Haptoglobin
• UniProt Gene Name: HP
• UniProt Entry Name: HPT_HUMAN

NCBI Description

This gene encodes a preproprotein, which is processed to yield both alpha and beta chains, which subsequently combine as a tetramer to produce haptoglobin. Haptoglobin functions to bind free plasma hemoglobin, which allows degradative enzymes to gain access to the hemoglobin, while at the same time preventing loss of iron through the kidneys and protecting the kidneys from damage by hemoglobin. Mutations in this gene and/or its regulatory regions cause ahaptoglobinemia or hypohaptoglobinemia. This gene has also been linked to diabetic nephropathy, the incidence of coronary artery disease in type 1 diabetes, Crohn's disease, inflammatory disease behavior, primary sclerosing cholangitis, susceptibility to idiopathic Parkinson's disease, and a reduced incidence of Plasmodium falciparum malaria. The protein encoded also exhibits antimicrobial activity against bacteria. A similar duplicated gene is located next to this gene on chromosome 16. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2014]

Uniprot Description

HP: Haptoglobin combines with free plasma hemoglobin, preventing loss of iron through the kidneys and protecting the kidneys from damage by hemoglobin, while making the hemoglobin accessible to degradative enzymes. Defects in HP are the cause of anhaptoglobinemia (AHP). AHP is a condition characterized by the absence of the serum glycoprotein haptoglobin. Serum levels of haptoglobin vary among normal persons: levels are low in the neonatal period and in the elderly, differ by population, and can be influenced by environmental factors, such as infection. Secondary hypohaptoglobinemia can occur as a consequence of hemolysis, during which haptoglobin binds to free hemoglobin. Belongs to the peptidase S1 family.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 16q22.2

Cellular Component: extracellular space; extracellular region

Molecular Function: antioxidant activity; protein binding; hemoglobin binding; catalytic activity

Biological Process: receptor-mediated endocytosis; response to hydrogen peroxide; immune system process; metabolic process; defense response to bacterium; negative regulation of oxidoreductase activity; acute-phase response; defense response

Disease: Anhaptoglobinemia