Multiplexing Nanobody Kinetics Measurements at the Single-Molecule Level

Summary:  Single-molecule methods provide useful insights into the intermolecular variations and functional differences of individual molecules and have revealed much about the complexity of biological processes. Today it is possible to monitor binding kinetics at the single molecule level in a highly parallel fashion using zero-mode waveguide (ZMW) arrays. This allows monitoring the binding/unbinding of […]

Beyond the Genome: Unraveling Protein Variability with Quantum-Si’s Next-Gen Protein Sequencing Technology

Summary:  Next-gen protein sequencing is a transformational tool for protein science to unlock new insights into the function of proteins in health and diseases. Quantum-Si’s Platinum® technology brings the insights of protein sequencing to every lab with a space-friendly benchtop instrument, a simple end-to-end workflow, and single-molecule resolution that enables detection of protein variants and […]

Advancing the Understanding of Cellular Biology with Next-Gen Protein Sequencing on Platinum® by Quantum-Si

Summary:  Next-gen protein sequencing is a transformational tool for protein science to unlock new insights into the function of proteins in health and diseases. Quantum-Si’s Platinum technology brings the insights of protein sequencing to every lab with a space-friendly benchtop instrument, a simple end-to-end workflow, and single-molecule resolution that enables detection of protein variants and […]

Single-Molecule Protein Sequencing on the Quantum-Si Platform: Advances in Protein and Proteoform Identification and Comparison With Mass Spectrometry

Studies of the proteome would benefit greatly from methods to directly sequence and digitally quantify proteins and detect post-translational modifications with single-molecule sensitivity. Quantum-Si has developed the Platinum® next-generation protein sequencing platform to offer a convenient benchtop solution for direct sequencing of single protein molecules with the aim of making protein sequencing accessible to any […]

Next-Gen Protein Sequencing on Quantum-Si Platinum®: Advances in Protein Identification

Next-gen protein sequencing is a transformational tool for protein science to unlock new insights into the function of proteins in health and diseases. Quantum-Si’s Platinum technology brings the insights of protein sequencing to every lab with a space-friendly benchtop instrument, a simple end-to-end workflow, and single-molecule resolution that enables detection of protein variants and modifications. […]

Detection of Arginine Post-translational Modifications by Single-Molecule Protein Sequencing on the Quantum-Si Platinum® Platform

Aberrant post-translational modifications (PTMs) on arginine residues, namely methylation and citrullination, are closely linked to oncogenic processes. Detection of these PTMs is challenging with current technologies and can be hampered by low abundance and mass differences that are difficult to resolve by mass spectrometry. To overcome these hurdles, we developed methods for PTM detection using […]

Beyond the Genome: How Quantum-Si’s Platinum® Identifies Protein Sequence Often Overlooked by Genomics Data

Next-gen protein sequencing is a transformational tool for protein science to unlock new insights into the function of proteins in health and disease. Quantum-Si’s Platinum technology brings the insights of protein sequencing to every lab with a space-friendly benchtop instrument, a simple end-to-end workflow, and single-molecule resolution that enables detection of protein variants and modifications […]

Next-Gen Protein Sequencing on Quantum-Si’s Platinum®: Discernment of Protein Mixtures and Peptide Modifications

Peptide-level analysis coupled with amino acid resolution is important to elucidate how proteins influence health and disease. Peptide-centric methodologies using liquid chromatography-tandem mass spectrometry (LC-MS/MS) are widely used to detect native and modified proteins. While LC-MS/MS stands as the dominant bottom-up proteomics technique, accessing LC-MS/MS and interpreting MS/MS spectra remains challenging. Due to the large […]