A New Affinity-Based Probe to Profile MMP Active Forms.
Methods Mol Biol 2024;
2747:29-39. [PMID:
38038929 DOI:
10.1007/978-1-0716-3589-6_3]
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Abstract
A new generation of affinity-based probes (AfBPs) has been developed to label and identity matrix metalloproteinases (MMPs) under their active form in complex proteomes. First, the probe reacts with an active MMP through a proximity-driven reaction that does not require any external trigger. Following this affinity-labeling step, a streptavidin-based enrichment of the resulting biotin-tagged MMP is carried out. Finally, after on-beads proteolytic digestion by trypsin, MMP signature peptides are analyzed and identified by mass spectrometry. Such a "photoactivation-free" labeling can be applied to the detection of several MMPs in a wide variety of biological systems, including in vivo conditions.
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