FAIMS-GPF XL-MS: crosslinking-mass spectrometry based on gas-phase fractionation
Brief summary for “FAIMS-GPF XL-MS: crosslinking-mass spectrometry based on gas-phase fractionation”. The need for large amounts of starting material remains a major challenge for large-scale cross-linking mass spectrome
Large-scale cross-linking mass spectrometry (XL-MS) experiments are often hindered by the need for substantial amounts of starting material. This limitation can be particularly challenging when working with complex biological samples. In response to this challenge, the authors of this study have developed a novel gas-phase fractionation strategy, referred to as FAIMS-GPF, which eliminates the requirement for solution-based fractionation in XL-MS. By leveraging the principles of gas-phase fractionation, FAIMS-GPF enables the efficient separation and analysis of complex protein mixtures. This approach has the potential to significantly enhance the scalability and versatility of XL-MS experiments. The FAIMS-GPF strategy involves the use of a combination of gas-phase fractionation and cross-linking techniques to generate a mass spectrum of the protein sample. The resulting data can be used to identify protein-protein interactions, analyze protein structure, and elucidate protein function. The authors demonstrate the efficacy of FAIMS-GPF by applying this approach to a range of biological samples, including proteins from the human proteome. The results show that FAIMS-GPF can efficiently separate and analyze complex protein mixtures, providing valuable insights into protein structure and function. The FAIMS-GPF strategy offers a number of advantages over traditional solution-based fractionation methods, including increased sensitivity, faster analysis times, and improved adaptability to changing experimental conditions. Overall, the development of FAIMS-GPF represents a significant advancement in the field of XL-MS, and has the potential to revolutionize the analysis of complex biological samples. However, it is essential to note that FAIMS-GPF is a research-use-only (RUO) product, and should only be used for laboratory research purposes. The results presented in this study are not intended to be used for clinical or therapeutic applications, and any attempts to use FAIMS-GPF for such purposes may be in violation of applicable laws and regulations.