Recently in BioTechniques, we’ve presented the development of a biomarker assay for the quantification of CXCL9 in human serum, an enhanced Southern blotting protocol for evaluating transgene integration sites and integrity, and the optimization of a method for proximity labeling in brain endothelial cells. Reports A clinical biomarker assay to quantitate CXCL9 in human serum Optimized Southern blotting for enhanced and precise detection of transgenes in CHO cells from transposon-based expression systems Optimization of proximity labeling in endothelial cells: overcoming endogenous biotin interference and cost barriers Benchmark Benchmarking antibody discovery fidelity and reproducibility with an assay-locked residue fidelity index If you missed last month’s roundup, catch up here >>> Get this straight to your inbox each month by signing up for Journal updates >>>The post How do you capture protein-protein interactions in brain endothelial cells? – Find out in your latest roundup of <i>BioTechniques</i> appeared first on BioTechniques.