Native Human Haptoglobin Protein

Name: Native Human Haptoglobin Protein
Brand: Beta LifeScience
SKU: BAR-0006P
Price: 638.0 USD
Availability: InStock

Collections: All products, Christmas & new year research sale — 30% off storewide, Native proteins

Price

Size

1mg

Quantity

Submit an inquiry or email sales for a custom bulk quote. Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

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Product Overview

Description	This product is purified native human haptoglobin protein containing a natural mixture of phenotypes 1-1, 2-1, and 2-2, as typically found in pooled human plasma. The protein retains its native structure and functional hemoglobin-binding activity. It is ideal for applications where a representative mix of haptoglobin forms is desired, such as assay development, control standards, or biomarker studies.Haptoglobin is a glycoprotein involved in binding free hemoglobin released from erythrocytes, thereby preventing oxidative damage and promoting clearance via the CD163 receptor pathway. It plays an important role in inflammation, immune regulation, and hemolysis-related disease states.The protein retains its native structure and biological activity and is processed to achieve a low endotoxin level (< 2 EU/mg), making it suitable for sensitive cell-based assays and in vivo studies.
Source	Human Plasma
Form	Lyophilized Powder
Buffer	Salt-free lyophilized solid
Endotoxin Level	< 2 EU/mg
Purity	Greater than 95% as determined by SDS-PAGE.
Molecular Weight	Hp 1-1: 86kDa; Hp 2-1: 200kDa; Hp 2-2: 400kDa
Protein Determination	Extinction Coefficient (E) = 1.20 (0.1% at 280 nm, 1 cm pathway)
Storage/Handling	≤ -20 °C

FAQs

Please fill out the Online Inquiry form located on the product page. Key product information has been pre-populated. You may also email your questions and inquiry requests to sales1@betalifesci.com. We will do our best to get back to you within 4 business hours.

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.