Protein and peptide research tools

​​Explore our extensive range of high-quality proteins, designed to give you consistent and accurate results.​

​Proteins are biochemical compounds made from chains of amino acids, the building blocks of our cells. Proteins perform a vast array of cellular processes and make up most of the cellular weight.

Our extensive range of high-quality proteins and peptides can be used for a variety of applications, including SDS-PAGE, ELISA, and western blot. We also provide biologically active proteins, and proteins produced in strict animal-free conditions to reduce experimental variables associated with trace amounts of animal or mammalian pathogens.

For more information about our expression systems and key terms associated with our protein range, refer to our glossary.

Explore our broad array of products below:

• Cytokines and growth factors
• Ubiquitin proteins
• Enzymes
• Microbiology and virology proteins
• Human immunoglobulin proteins
• Cell surface markers and receptors
• Blocking peptides

Cytokines and growth factors
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Cytokines act as important mediators in immune cell-cell communication. They are involved in cell movement, mediating inflammatory and immune responses, and regulating cell growth and differentiation.

Given the importance of this group of proteins in cell signaling, we ensure that our recombinant proteins are tested for function in relevant cell models. Our extensive range of cytokines and growth factors includes interferons, chemokines, interleukins and various growth and inhibitory factors.

Click here to explore our cytokine range

Ubiquitin proteins

Ubiquitin is a highly conserved 8.5 kDa protein that is abundant in all types of cells. It performs vital roles in cellular processes, including DNA damage responses, endocytosis, and mitosis. 

​As ubiquitin molecules are important players in many signal transduction pathways, enzymes that regulate these pathways serve as potential therapeutic targets in disease treatment.

Click here to explore our ubiquitin range

Enzymes
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We have a broad range of enzymes available to fit your individual need. Explore our products below.

Matrix metalloproteinases (MMPs)

​Matrix metalloproteinases (MMPs) form a family of zinc-containing endopeptidases, which play an important role in the degradation of extracellular matrix proteins. They can also affect many other biological activities, such as cell migration and growth. Regulation of MMP activity occurs at several levels, including transcriptional regulation and inhibition by specific protease inhibitors, called TIMPs.

Click here for our MMP range

Kinases and transferases

​Kinases and transferases correspond to a class of enzymes that transfer functional groups from a donor molecule to an acceptor. Specifically, kinases catalyze the transfer of phosphate from ATP to hydroxyl side chains on proteins, causing changes in function. Transferases catalyze the transfer of a functional group (eg a methyl or phosphate group) from one molecule to another.

Click here for our kinase range

Click here for our transferase range

Caspases

​Caspases are a family of cysteine proteases involved in development, cytokine maturation and programmed cell death. There are two subgroups according to their functions in cell death: initiator caspases (caspases 2, 8, 9, and 10) are activated through apoptosis-signaling pathways and activate effector caspases (caspases 3, 6 and 7), which carry out programmed cell death. 

Click here for our caspase range

Signal transduction enzymes

​Signal transduction enzymes orchestrate a cascade of reactions involving numerous signal transduction pathways. Enzymes, such as tyrosine kinases, phosphatases and hydrolases, are central to cell signaling.

Click here to explore our signal transduction enzymes

Microbiology and virology proteins
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Recombinant, synthetic and natural proteins, including viral and bacterial antigens, are essential tools in the areas of microbiology and virology. Our broad range can be used in a variety of applications to aid research in existing research topics or current epidemics. 

Our products include bacterial proteins, DNA and RNA virus proteins, Hepatitis proteins, HIV proteins, HSV and influenza proteins.

Click here to explore our microbiology and virology range

Human immunoglobulin proteins

Our human immunoglobulin proteins can be used in serology, biochemical assays and the investigation of autoimmune disorders. We provide both natural and recombinant human immunoglobulin proteins to a variety of popular targets, including IgE, IgG, IgA, IgD, and IgM.

Click here to explore our human immunoglobulin range

Cell surface markers and receptors

Cell surface receptors and markers are specialized proteins involved in cell signaling. Due to their presence in a vast array of cell types, they are important in several research fields, including cancer, neurodegeneration and immunology. Our high-quality markers and receptors will allow you to evaluate protein function for many popular targets. 

​Click here to explore our cell surface markers and receptors 

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Blocking peptides
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​Blocking peptides can be used as controls to evaluate the specificity of antibodies in applications like immunohistochemistry and western blot. We offer a wide range of verified blocking peptides, including custom blocking peptides for our RabMAb^® range of rabbit monoclonal antibodies.

If we do not have your desired blocking peptide, please contact Scientific Support with details of the antibody you wish to block.

Click here to explore blocking peptides