Integrated Methods in Protein Biochemistry: Part B, Volume 678 in the Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of topics, including Precise modification of native proteins, purification, and analysis of bioconjugates, NanoBiT-based methods to monitor the activation and modulation of RTKs, The interplay of G-protein ß? subunit and PLC-ß enzyme in PIP2 hydrolysis and downstream signaling, Structure and function of bacterial secretion system, Tools and protocols for probing protein sumoylation, Spectroscopic analysis of cysteine dioxygenase: a mammalian thiol-dioxygenase, DeGlyPHER: MS-based analysis of viral spike N-glycoforms, and more. Additional sections cover Covalent protein painting: MS-based protein footprinting, Characterization of GPCR signaling complexes using negative-staining electron microscopy, Probing protein misfolding and dissociation with free electron laser, Optimized protocol for the characterization of Cas12a activities, Proximity proteomics for the identification and characterization of extracellular vesicles, Structural and Functional characterization of lytic polysaccharide monooxygenases, and much more.