Recombinant Protein

Protheragen-ING provides various recombinant protein products, including recombinant human serum albumin, recombinant human insulin, recombinant human holotransferrin, and recombinant human apolipoprotein transferrin. Each of these proteins has great potential for research, diagnostic, and therapeutic applications. Choose our products and unlock the potential of your research and development efforts.

Proteins and Biomaterials

Extensive Product Categories

  • Recombinant Human Serum Albumin (rHSA)

rHSA is a key protein found in plasma that offers multiple advantages, including enhanced safety, scalability, and consistency.

rHSA serves as a versatile excipient that facilitates drug formulation and stability. It can also be used as a cell culture supplement to provide essential nutrients and improve cell growth and productivity.

  • Recombinant Human Insulin

This insulin analog is produced by recombinant DNA technology and closely mimics the natural human hormone. It is widely used in the pharmaceutical industry for the production of insulin preparations, including fast-acting, long-acting, and intermediate-acting insulins.

  • Recombinant Holo-Transferrin Human

This is an important protein involved in iron transport and metabolism that plays a crucial role in various biological processes, including cell growth, development, and immune response.

This recombinant form of transferrin is used in cell culture systems, where it is an essential component for optimizing cell growth, viability, and function. It provides a stable and reliable source of iron to ensure optimal conditions for a variety of cellular research and bioproduction processes.

  • Recombinant Apo-Transferrin Human

This is the iron-free form of transferrin that is widely used in research, diagnostic, and biotechnology applications.

Apo-transferrin plays a key role in iron homeostasis and has been used in a variety of studies investigating iron metabolism, receptor binding, and cellular uptake of iron.

Canonical and noncanonical Fe(III) binding to serum transferrin (sTf).Fig. 1 Canonical (closed, (A)) and noncanonical (open, (B)) Fe(III) binding to serum transferrin (sTf). (C) Representation of sTf metal affinity that suggests the capacity for additional nonferric metal binding. (Benjamín-Rivera JA, et al. 2020)


  • Biopharmaceutical Research and Development: These proteins are employed in various stages of drug discovery and development, including formulation development, stability studies, and cell culture optimization.
  • Cell Culture and Bioprocessing: Recombinant human proteins serve as essential supplements in cell culture media, enabling efficient growth, expansion, and protein production in various cell types.
  • Diagnostics and Assay Development: These proteins are used as critical components in diagnostic kits and assays, facilitating the accurate detection and measurement of specific biomarkers and analytes.
  • Regenerative Medicine and Tissue Engineering: Recombinant proteins play a vital role in tissue engineering, regenerative medicine, and stem cell research, providing a controlled microenvironment for cell growth and differentiation.
  • Academic and Industrial Research: Researchers across academia and industry utilize recombinant proteins for a wide range of studies, including protein characterization, structural biology, enzymology, and molecular biology.

If you have any questions or need assistance, our dedicated customer support team is here to help.


  1. Benjamín-Rivera JA, et al. (2020). "Exploring Serum Transferrin Regulation of Nonferric Metal Therapeutic Function and Toxicity." Inorganics, 8(9), 48.
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