Linkers and Spacers
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Linkers and Spacers

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Linkers, we can also call spacers, which can be used to link two molecules of interest to us. They are always flexible or stretched molecule. Depending on the field of design and application, we can construct plugins in peptides and different molecules to construct molecular structures that can be used for research. Generally, we can insert a linker between the peptide and the following molecules:

  1. Peptide and biotin
  2. Peptide and carrier proteins (KLH, BSA, etc.)
  3. Peptide and fluorescent dyes
  4. Peptide and tags

Different lengths of linkers can bind to any site on the peptide, usually via an amide bond. One common hydrophobic spacer is aminocaproic acid (Ahx), a common hydrophilic spacer is polyethylene glycol (PEG), and there are many other options. In recent years, PEGylation has been widely used method for improving the stability and bioavailability of peptides in vivo. If you need, please visit Peptide PEGylation.

Creative Peptides can provide linkers as shown below, including but not limited to the following examples:

Exanples-of-Linkers-and-Spacers.png

Inserting a linker between peptide and other molecules can help:

  1. Peptide design
  2. Studying the relationship between structure and function
  3. Providing important information for the mechanism of peptide biosynthesis
  4. Stablishing model enzymes and synthesize new peptide drugs

Creative Peptides is one of the leaders in peptide fields, provides high quality synthetic peptides. We have formed a strong biomedical research professional product supply chain. If you have needs, please contact us as soon as possible!

References
1. Newton, D. L., Xue, Y., Olson, K. A., Fett, J. W., & Rybak, S. M. (1996). Angiogenin single-chain immunofusions: influence of peptide linkers and spacers between fusion protein domains. Biochemistry, 35(2), 545-553.
2. Chen, H., Chen, Z., Wu, B., Ullah, J., Zhang, T., Jia, J., ... & Tan, T. (2017). Influences of various peptide linkers on the Thermotoga maritima MSB8 nitrilase displayed on the spore surface of Bacillus subtilis. Journal of molecular microbiology and biotechnology, 27(1), 64-71.
3. Craig, J. A., Rexeisen, E. L., Mardilovich, A., Shroff, K., & Kokkoli, E. (2008). Effect of linker and spacer on the design of a fibronectin-mimetic peptide evaluated via cell studies and AFM adhesion forces. Langmuir, 24(18), 10282-10292.

If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
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