Natural Proteins


Purified Natural Proteins for Advanced Biological Research

Discover our purified natural proteins, each serving essential functions for various biological studies.

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  • Actin from rabbit muscle is used for binding studies and endogenous internal controls to normalize gene expression studies. It can further be used for studying cellular structure, motility, and cytoskeletal dynamics in cell biology and physiology research.
  • Nuclease-Free Albumin from bovine serum is used in applications requiring inhibition or reduction of non-specific protein-protein interactions and interactions between proteins and biological macromolecules in techniques such as Western, Northern, Southern, and dot blots, PCR and RT-PCR reactions, Enzymatic reactions and Nucleic acid hybridizations.
  • Hemoglobin from bovine erythrocytes is used as a substrate for pepsin and other proteases.
  • Mucin from bovine submaxillary gland are the glycoproteins in epithelial mucous secretions. Their protective function is due to their high viscosity. Mucin can be useful as a substrate for neuraminidase.
  • Myoglobin from bovine skeletal muscle is a small, globular protein primarily responsible for oxygen storage in cardiac and skeletal muscle. It is used for protein folding studies, as a molecular weight marker, as well as a standard for mass spectroscopy or ELISA.
  • Ovalbumin from egg white is a glycoprotein that comprises 54% of the total proteins of egg white. It is commonly used in proteomics as a molecular weight marker for calibrating electrophoresis gels.
  • Bovine Hyaluronic Acid is a vital substrate for hyaluronidase assays.

Each protein in our portfolio undergoes rigorous purification to ensure high quality and reliability, empowering researchers to advance scientific understanding across diverse fields.


  • ACT - Actin

    Cat.-Nr: LS001041

    Prepared by modification of the procedure of Spudich and Watt, J. Biol. Chem., 246, 4866 (1971). Purity checked by SDS-PAGE. A lyophilized powder.

  • ACT - Actin

    Cat.-Nr: LS001045

    Prepared by modification of the procedure of Spudich and Watt, J. Biol. Chem., 246, 4866 (1971). Purity checked by SDS-PAGE. A lyophilized powder.

  • BSANF - Bovine Albumin, Nuclease-Free

    Cat.-Nr: LS000290

    Prepared by a method developed at Worthington. Some degradation products may be present. 90% of the material is intact BSA as determined by SDS PAGE.... Read More

  • BSANF - Bovine Albumin, Nuclease-Free

    Cat.-Nr: LS000291

    Prepared by a method developed at Worthington. Some degradation products may be present. 90% of the material is intact BSA as determined by SDS PAGE.... Read More

  • HB - Hemoglobin, Bovine

    Cat.-Nr: LS002402

    Suitable protease substrate. Prepared from repeatedly washed, then lysed, and dialyzed bovine red cells. A lyophilized powder.

  • HB - Hemoglobin, Bovine

    Cat.-Nr: LS002403

    Suitable protease substrate. Prepared from repeatedly washed, then lysed, and dialyzed bovine red cells. A lyophilized powder.

  • HB - Hemoglobin, Bovine

    Cat.-Nr: LS002404

    Suitable protease substrate. Prepared from repeatedly washed, then lysed, and dialyzed bovine red cells. A lyophilized powder.

  • MU - Mucin

    Cat.-Nr: LS002975

    A dry powder prepared by the method of Nisizawa, K., and Pigman, W.: Arch. Oral. Biol., 1, 161 (1959). Suitable as a substrate for neuraminidase.

  • MU - Mucin

    Cat.-Nr: LS002976

    A dry powder prepared by the method of Nisizawa, K., and Pigman, W.: Arch. Oral. Biol., 1, 161 (1959). Suitable as a substrate for neuraminidase.

  • Myoglobin

    Cat.-Nr: LS002408

    Bovine skeletal muscle , Supplied as a dialyzed, lyophilized powder, =90% Purity (SDS-Page), Store at 2-8°C

  • Myoglobin

    Cat.-Nr: LS002410

    Bovine skeletal muscle , Supplied as a dialyzed, lyophilized powder, =90% Purity (SDS-Page), Store at 2-8°C

  • OA - Ovalbumin

    Cat.-Nr: LS003048

    Major protein of egg white, with a molecular weight of 43,000. A lyophilized powder.

  • OA - Ovalbumin

    Cat.-Nr: LS003049

    Major protein of egg white, with a molecular weight of 43,000. A lyophilized powder.

  • OAC - Ovalbumin

    Cat.-Nr: LS003054

    Chromatographically purified. Major protein of egg white, with a molecular weight of 43,000. A dialyzed, lyophilized powder.

  • OAC - Ovalbumin

    Cat.-Nr: LS003056

    Chromatographically purified. Major protein of egg white, with a molecular weight of 43,000. A dialyzed, lyophilized powder.

  • OAEF - Ovalbumin, Low Endo™, purified

    Cat.-Nr: LS003059

    Ovalbumin, purified to remove endotoxin and tested. A dialyzed, lyophilized powder containing = 1 EU/mg. Store at 2-8°C.

  • OAEF - Ovalbumin, Low Endo™, purified

    Cat.-Nr: LS003061

    Ovalbumin, purified to remove endotoxin and tested. A dialyzed, lyophilized powder containing = 1 EU/mg. Store at 2-8°C.

  • VHHA - Hyaluronic Acid Bovine

    Cat.-Nr: LS003907

    A partially purified powder. Suitable as a substrate for hyaluronidase assays.

  • VHHA - Hyaluronic Acid Bovine

    Cat.-Nr: LS003909

    A partially purified powder. Suitable as a substrate for hyaluronidase assays.

  • VHHA - Hyaluronic Acid Bovine

    Cat.-Nr: LS003910

    A partially purified powder. Suitable as a substrate for hyaluronidase assays.