Executive Summary
one by PP Yang·2021·Cited by 59—We develop an experimental method to rapidly screen a huge array of peptide sequences for self-assembling property, using theone-bead one-compound (OBOC)
The field of peptide discovery has been significantly advanced by the development of innovative combinatorial techniques. Among these, the one bead one compound (OBOC) approach stands out as a powerful methodology for rapidly identifying and sequencing peptides with specific properties. This entity has revolutionized how researchers explore vast chemical spaces, enabling the discovery of novel peptides for a myriad of applications.
The core principle behind one bead one compound (OBOC) is elegantly simple yet remarkably effective. Each individual bead in a library is synthesized to carry a single, unique compound or peptide. This one-bead-one-compound (OBOC) combinatorial strategy, pioneered by researchers like KS Lam, allows for the creation of immense libraries, often containing millions of diverse peptides. This is achieved through sophisticated synthesis methods such as split-mix synthesis and solid-phase peptide synthesis (SPPS), often utilizing Fmoc-chemistry. The brilliance of this one-bead-one-compound (OBOC) methodology lies in its ability to generate a massive diversity of compounds on a manageable scale, where each bead acts as a discrete carrier of a single peptide.
The process of utilizing one bead one compound (OBOC) peptide libraries typically involves several key stages. First, library construction is undertaken, where a vast array of peptides are synthesized and attached to individual beads. Following synthesis, the crucial step of positive beads separation occurs. This involves screening the library against a specific target or for a desired property, such as self-assembly or binding affinity. Affinity-based on-bead screening approaches are commonly employed here, allowing researchers to isolate the beads displaying peptides of interest. Finally, peptide sequencing is performed on the isolated "hit" beads to determine the exact amino acid sequence of the identified peptide. This meticulous one-bead, one-compound (OBOC) combinatorial peptide library screening allows for the precise identification of the peptide responsible for the observed activity.
The applications of one-bead-one-compound (OBOC) libraries of cyclic peptides and linear peptides are extensive and continue to grow. Researchers have successfully employed this technology to discover albumin binding peptides (ABPs), which can be used to increase the half-life of peptide drugs in the body, thereby improving their therapeutic efficacy. The one-bead-one-compound (OBOC) peptide library screening has also been instrumental in identifying peptides for cellular targeting in the development of treatments for diseases like cancer. Furthermore, the ability to rapidly screen for self-assembling peptides has opened new avenues in biomaterials and drug delivery systems. The one-bead-one-compound nature of the split-and-pool method is particularly advantageous for these applications, ensuring that each bead represents a single, well-defined compound.
The one-bead-one-compound (OBOC) combinatorial libraries offer a significant advantage over traditional methods due to their high throughput and efficiency. For instance, rapid discovery of self-assembling peptides with one-bead techniques can accelerate the identification of promising candidates by orders of magnitude. The one-bead-one-compound (OBOC) libraries have been used to screen against various biological targets, including cells, such as K562 myeloid leukemia cells, and to identify molecules active towards specific cell types. The optimization and use of one-bead-one-compound (OBOC) strategies are continuously being refined to enhance their efficiency and scope. The synthesis and cell-based screening of one-bead peptides are becoming increasingly sophisticated, leading to the discovery of functional peptides with tailored properties. The underlying principle of a one bead one compound approach ensures that the screening process is precise and the results are directly attributable to the individual peptide on each bead. This makes the one-bead-one-compound (OBOC) peptide libraries a cornerstone in modern peptide research and drug discovery. The ability to synthesize millions of random compounds in a format where each bead represents a unique peptide is a testament to the power and versatility of this entity.
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Synthesis and Screening of One-Bead-One-Compound
We use OBOC library screening to accelerate the discovery ofnovel peptidesfor cellular targeting in cancer and other diseases.
Screening approaches based onone-bead-one-compound (OBOC) combinatorial librarieshave facilitated the discovery of novel peptide ligands for cellular
by KS Lam·1997·Cited by 1136—Localized Instillation Enables In Vivo Screening of TargetingPeptidesUsingOne-Bead One-CompoundTechnology. ACS Nano 2023, 17 (2) , 1381-1392. https
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