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Proteins & Peptides

Proteins & Peptides
Looking to buy reliable and cost effective Proteins and Peptides for your research?

Proteins are large molecules built from one or more peptide chains, folded into complex, 3-dimensional shapes that look like curled masses of ribbon. Peptides are molecules made up of amino acids connected by peptide bonds in a single chain. In addition to peptides, proteins may also contain cofactors or prosthetic groups which help them function properly. Proteins and peptides play...

...a multitude of roles in directing and regulating cellular and extracellular activity.

In vivo, proteins and peptides are made according to the information transcribed from DNA and translated by ribosomes from the RNA. Each gene in a cell’s DNA codes for a single protein. Commercial sources for proteins and peptides include humans, poultry (eggs), rodents, goats, bacteria, viruses, yeast, plants and insects.

Synthetic peptides can be created in the laboratory by building a chain one amino acid at a time, with attached protecting groups preventing unwanted side chain reactions as the peptide grows. Or, longer peptides can made by coupling peptide fragments.

Thousands of different proteins and peptides are available commercially, each one targeted to a specific organism (e.g. human). Proteins and peptides come in several different isoforms, such as IgA, IgG, IgM, etc.

Proteins and peptides are used in basic microbiology and genetic research, drug development, cancer treatment and clinical testing.

Browse the product range below or simply use the Search Tool above to help find the best Proteins & Peptides at the most competitive prices.

Once you have selected a product, complete a ‘Get a Quote’ form to find the best price!

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alpha2-Macroglobulin
alpha2-Macroglobulin
B-BRIDGE INTERNATIONAL, INC

Human Alpha-2-Macroglobulin (?2M) is a glycoprotein of 725 kDa encoded by a gene that spans approximately 48 kb and consists of 36 exons. The protein is...

Human Serum Aminopeptidase N
Human Serum Aminopeptidase N
B-BRIDGE INTERNATIONAL, INC

Aminopeptidase N is a receptor for human coronavirus (Yeager et al. 1992); it has an important role in HIV entry (Pulido-Cejudo et al. 1997) and in the...

Human Serum Aminopeptidase N
Human Serum Aminopeptidase N
B-BRIDGE INTERNATIONAL, INC

Aminopeptidase N is a receptor for human coronavirus (Yeager et al. 1992); it has an important role in HIV entry (Pulido-Cejudo et al. 1997) and in the...

Recombinant Human HtrA3, His -
Recombinant Human HtrA3, His -
B-BRIDGE INTERNATIONAL, INC

Recombinant human HtrA3 is expressed in insect cells with a C-terminal His-tag and purified from insect cell culture supernatants

Recombinant Human HtrA3, His -
Recombinant Human HtrA3, His -
B-BRIDGE INTERNATIONAL, INC

Recombinant human HtrA3 is expressed in insect cells with a C-terminal His-tag and purified from insect cell culture supernatants

Recombinant Human HtrA4, His -
Recombinant Human HtrA4, His -
B-BRIDGE INTERNATIONAL, INC

Recombinant human HtrA4 is expressed in insect cells with a C-terminal His-tag and purified from insect cell culture supernatants.

Recombinant Human HtrA4, His -
Recombinant Human HtrA4, His -
B-BRIDGE INTERNATIONAL, INC

Recombinant human HtrA4 is expressed in insect cells with a C-terminal His-tag and purified from insect cell culture supernatants.

Cathepsin G
Cathepsin G
B-BRIDGE INTERNATIONAL, INC

Polymorphonuclear leukocytes (PMNs) contain abundant amounts of antibacterial proteins and proteolytic enzymes within peroxidase-positive azuphil granules....

Cathepsin G
Cathepsin G
B-BRIDGE INTERNATIONAL, INC

Polymorphonuclear leukocytes (PMNs) contain abundant amounts of antibacterial proteins and proteolytic enzymes within peroxidase-positive azuphil granules....

Neutrophil Elastase
Neutrophil Elastase
B-BRIDGE INTERNATIONAL, INC

Leukocyte elastase is one of several hydrolytic enzymes contained in the azurophil granules of human neutrophils exhibiting a relative molecular weight of...

Neutrophil Elastase
Neutrophil Elastase
B-BRIDGE INTERNATIONAL, INC

Leukocyte elastase is one of several hydrolytic enzymes contained in the azurophil granules of human neutrophils exhibiting a relative molecular weight of...