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We have developed a mid‐infrared laser ablation sampling technique for nano‐flow liquid chromatography coupled with tandem mass spectrometry proteomic profiling of discrete regions from biological samples. Laser ablation performed in transmission geometry was used to transfer material from 50‐µm thick tissue sections mounted on a glass microscope slide to a capturing solvent. Captured samples were...
Large‐scale detection of ubiquitination sites in whole cell proteomes using nano–liquid chromatography coupled to tandem mass spectrometry is a well‐established technique that has deepened the understanding of protein degradation processes in eukaryotic cells. Ubiquitination sites are usually identified by detection of Lys‐ɛ‐Gly‐Gly (K‐ɛ‐GG)‐remnant peptides, which are generated by tryptic digestion...
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