19F-Dehydrocoelenterazine as probe to investigate the active site of symplectin
摘要:
Fluorinated dehydrocoelenterazines (F-DCTs) were synthesized to study molecular mechanisms of symplectin; a photoprotein of luminous squid Symplectoteuthis oualaniensis L. F-DCTs reacted with dithiothreitol and glutathione under neutral conditions to give the stable chromophores as symplectin model. Reconstructed symplectin was also obtained by addition of F-DCTs into apo-symplectin, and showed bioluminescence to emit 50-65% amount of light as natural symplectin. The structure of the chromophores was determined by F-19 NMR, Q-TOF-MS, and MS/MS analyses. Sequencing of the chromopeptides of symplectin models prepared from F-DCTs and thiol compounds was accomplished by ESI-Q-TOF-MS/MS analysis. (C) 2002 Elsevier Science Ltd. All rights reserved.
19F-Dehydrocoelenterazine as probe to investigate the active site of symplectin
摘要:
Fluorinated dehydrocoelenterazines (F-DCTs) were synthesized to study molecular mechanisms of symplectin; a photoprotein of luminous squid Symplectoteuthis oualaniensis L. F-DCTs reacted with dithiothreitol and glutathione under neutral conditions to give the stable chromophores as symplectin model. Reconstructed symplectin was also obtained by addition of F-DCTs into apo-symplectin, and showed bioluminescence to emit 50-65% amount of light as natural symplectin. The structure of the chromophores was determined by F-19 NMR, Q-TOF-MS, and MS/MS analyses. Sequencing of the chromopeptides of symplectin models prepared from F-DCTs and thiol compounds was accomplished by ESI-Q-TOF-MS/MS analysis. (C) 2002 Elsevier Science Ltd. All rights reserved.
19F-Dehydrocoelenterazine as probe to investigate the active site of symplectin
作者:Minoru Isobe、Tatsuya Fujii、Masaki Kuse、Keiichi Miyamoto、Kazushi Koga
DOI:10.1016/s0040-4020(02)00100-x
日期:2002.3
Fluorinated dehydrocoelenterazines (F-DCTs) were synthesized to study molecular mechanisms of symplectin; a photoprotein of luminous squid Symplectoteuthis oualaniensis L. F-DCTs reacted with dithiothreitol and glutathione under neutral conditions to give the stable chromophores as symplectin model. Reconstructed symplectin was also obtained by addition of F-DCTs into apo-symplectin, and showed bioluminescence to emit 50-65% amount of light as natural symplectin. The structure of the chromophores was determined by F-19 NMR, Q-TOF-MS, and MS/MS analyses. Sequencing of the chromopeptides of symplectin models prepared from F-DCTs and thiol compounds was accomplished by ESI-Q-TOF-MS/MS analysis. (C) 2002 Elsevier Science Ltd. All rights reserved.