Tsuchikama Kyoji, Gooyit Major, Harris Tyler L, Zhu Jie, Globisch Daniel, Kaufmann Gunnar F, Janda Kim D
The Skaggs Institute for Chemical Biology and Departments of Chemistry, Immunology and Microbial Science, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Worm Institute of Research & Medicine, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.
Angew Chem Int Ed Engl. 2016 Mar 14;55(12):4002-6. doi: 10.1002/anie.201511911. Epub 2016 Feb 17.
Reported herein is that (4S)-4,5-dihydroxy-2,3-pentanedione (DPD) can undergo a previously undocumented non-enzymatic glycation reaction. Incubation of DPD with viral DNA or the antibiotic gramicidin S resulted in significant biochemical alterations. A protein-labeling method was consequently developed that facilitated the identification of unrecognized glycation targets of DPD in a prokaryotic system. These results open new avenues toward tracking and understanding the fate and function of the elusive quorum-sensing signaling molecule.
本文报道了(4S)-4,5-二羟基-2,3-戊二酮(DPD)可发生一种以前未记录的非酶糖基化反应。将DPD与病毒DNA或抗生素短杆菌肽S一起孵育会导致显著的生化改变。因此开发了一种蛋白质标记方法,有助于在原核系统中鉴定DPD未被识别的糖基化靶点。这些结果为追踪和理解难以捉摸的群体感应信号分子的命运和功能开辟了新途径。