Cross-linking mass spectrometry (XL-MS) is a powerful tool for studying protein-protein interactions and elucidating architectures of protein complexes. While residue-specific XL-MS studies have been very successful, accessibility of interaction regions non-targetable by specific chemistries remain ...
The recently introduced cross-linking of isotope-labelled RNA coupled with mass spectrometry (CLIR-MS) technique enables protein-RNA cross-links to be used as precisely localized distance restraints in de novo structural modelling. The novel data type requires a bespoke data analysis approach. The n...
ORGANISM(S): Bos taurus (Bovine) Homo sapiens (Human)
The combination of cross-linking/mass spectrometry (XL-MS) and ion mobility is still underexplored for conducting protein conformational and protein-protein interaction studies. We present a method for analyzing cross-linking mixtures on a timsTOF Pro mass spectrometer that allows separating ions ba...
ORGANISM(S): Bos taurus (Bovine) Homo sapiens (Human) Escherichia coli
Intrinsically disordered proteins (IDPs), such as Tau and phosphorylated Tau (pTau), pose challenges for structural analysis using traditional methods like X-ray crystallography or cryo-EM. However, alternative approaches can still provide insights into their three-dimensional organization at modera...
These data sets are part of a large study aimed at the comparison of experimental and computational workflows used in chemical cross-linking coupled to mass spectrometry. Bovine serum albumin (BSA) was used as a model protein. Two different cross-linking chemistries were used: disuccinimidyl suberat...
Ion mobility separates molecules in the gas-phase on their physico-chemical properties, providing information about their size as collisional cross-sections. The timsTOF Pro combines trapped ion mobility with a quadrupole, HCD cell and a time-of-flight mass spectrometer, to interrogate ions at high ...
ORGANISM(S): Bos taurus (Bovine) Homo sapiens (Human)
Optimising the parameters for cross-link analysis using a QToF mass spectrometer. We performed triplicate analysis of 6 different collision energy ramps to determine the optimal energy for cross-link fragmentation.
Here, we present a novel trioxane-based MS-cleavable homotrifunctional cross-linker TSTO, which can target three proximal lysine residues simultaneously. Owing to its unique structure and MS-cleavability, TSTO enables fast and unambiguous identification of cross-linked peptides using LC-MSn analysis...
Protein cross-linking has assumed an irreplaceable role in structural proteomics. Recently, significant efforts have been made to develop novel MS-cleavable reagents. These cross-linkers enhance the reliability of cross-link identification. Presently, only water-insoluble MS-cleavable cross-linkers ...
ORGANISM(S): Bos taurus (Bovine) Homo sapiens (Human)
