| Bioactivity | 5-Ethynyluridine (5-EU) is a potent cell-permeable nucleoside can be used to label newly synthesized RNA. 5-Ethynyluridine can be used for isolation and sequencing of nascent RNA from neuronal populations in vivo. 5-Ethynyluridine can be used to identify changes in transcription in vivo in nervous system disease models[1][2]. | ||||||||||||
| In Vivo | 5-Ethynyluridine (75 mM in PBS for 1 µl; intracerebellar injection ) shows a labeling of central nervous system cells in mouse[1].5-Ethynyluridine (330-750 µMol/g; i.p.) results in in labelling of nascent RNA in cells of multiple organs and tissues, but not in the central nervous system in mouse[1]. | ||||||||||||
| Name | 5-Ethynyluridine | ||||||||||||
| CAS | 69075-42-9 | ||||||||||||
| Formula | C11H12N2O6 | ||||||||||||
| Molar Mass | 268.22 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
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| Reference | [1]. Van't Sant LJ, et al. In vivo 5-ethynyluridine (EU) labelling detects reduced transcription in Purkinje cell degeneration mouse mutants, but can itself induce neurodegeneration. Acta Neuropathol Commun. 2021 May 21;9(1):94. [2]. Jao CY, et al. Exploring RNA transcription and turnover in vivo by using click chemistry. Proc Natl Acad Sci U S A. 2008 Oct 14;105(41):15779-84. |