Leveraging nature's biomolecular designs in next-generation protein sequencing reagent development

Area of Science:

• Biochemistry
• Proteomics
• Molecular Biology

Background:

• Emerging next-generation sequencing technologies promise to revolutionize proteomics.
• Fluorescence-based imaging of immobilized peptides offers a novel sequencing approach.
• This method relies on sequential readout of N-terminal amino acids via fluorescently labeled biomolecules.

Purpose of the Study:

• To address the challenge of developing high-affinity and selective N-terminal amino acid binder (NAAB) reagents.
• To explore the potential of naturally occurring biomolecules as candidates for NAAB development.
• To discuss the developability of these candidate biomolecules for fluoro-sequencing applications.

Main Methods:

• Investigating naturally occurring biomolecules with inherent amino acid or peptide binding capabilities.
• Evaluating candidate biomolecules for their potential to be engineered into NAAB affinity reagents.
• Assessing factors influencing reagent developability, including protein size and structure.

Main Results:

• Several candidate biomolecules were identified as potential starting points for NAAB development.
• The feasibility of engineering these natural binders into selective affinity reagents was discussed.
• Key considerations for the developability of NAAB reagents were highlighted.

Conclusions:

• Leveraging naturally occurring binders offers a promising strategy for developing essential NAAB reagents.
• Successful development of NAABs is critical for advancing fluorescence-based N-terminal sequencing in proteomics.
• Further research into biomolecule engineering and developability is warranted for this next-generation sequencing technology.