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T4509

Sigma-Aldrich

4-Thiouridine

≥98%

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Synonym(s):
4sU, RNA synthesis inhibitor, Thiouridine
Empirical Formula (Hill Notation):
C9H12N2O5S
CAS Number:
13957-31-8
Molecular Weight:
260.27
EC Number:
237-735-3
MDL number:
MFCD00006538
UNSPSC Code:
41106305
PubChem Substance ID:
24900212
NACRES:
NA.51

biological source

synthetic (organic)

Quality Level

200

Assay

≥98%

form

powder

solubility

water: 20 mg/mL, clear

storage temp.

−20°C

SMILES string

OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)N2C=CC(=S)NC2=O

InChI

1S/C9H12N2O5S/c12-3-4-6(13)7(14)8(16-4)11-2-1-5(17)10-9(11)15/h1-2,4,6-8,12-14H,3H2,(H,10,15,17)/t4-,6-,7-,8-/m1/s1

InChI key

ZLOIGESWDJYCTF-XVFCMESISA-N

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General description

4-Thiouridine is a photoreactive uridine analog.

Application

4-Thiouridine has been used in labeling and isolation of nascent RNAs.

Biochem/physiol Actions

4-Thiouridine plays a role in assessing nascent RNA synthesis. It also enhances site-specific crosslinking. 4-Thiouridine also acts as a photoaffinity probe due to its stability even while lacking specific photoactivation. It can also be incorporated into RNAs.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Indira Memet et al.
Nucleic acids research, 45(9), 5359-5374 (2017-01-25)
In eukaryotes, the synthesis of ribosomal subunits, which involves the maturation of the ribosomal (r)RNAs and assembly of ribosomal proteins, requires the co-ordinated action of a plethora of ribosome biogenesis factors. Many of these cofactors remain to be characterized in
Tsutomu Suzuki et al.
Annual review of genetics, 45, 299-329 (2011-09-14)
Mitochondria are eukaryotic organelles that generate most of the energy in the cell by oxidative phosphorylation (OXPHOS). Each mitochondrion contains multiple copies of a closed circular double-stranded DNA genome (mtDNA). Human (mammalian) mtDNA encodes 13 essential subunits of the inner
Jonathan Krell et al.
Genome research, 26(3), 331-341 (2015-12-25)
DNA damage activates TP53-regulated surveillance mechanisms that are crucial in suppressing tumorigenesis. TP53 orchestrates these responses directly by transcriptionally modulating genes, including microRNAs (miRNAs), and by regulating miRNA biogenesis through interacting with the DROSHA complex. However, whether the association between
Hidenori Tani et al.
RNA biology, 9(10), 1233-1238 (2012-10-05)
Changing the abundance of transcripts by regulated RNA degradation is a critical step in the control of various biological pathways. Recently, genome-wide inhibitor-free technologies for determining RNA stabilities in mammalian cells have been developed. In these methods, endogenous RNAs are
Florin Sasarman et al.
Human molecular genetics, 20(23), 4634-4643 (2011-09-06)
MTU1 (TRMU) is a mitochondrial enzyme responsible for the 2-thiolation of the wobble U in tRNA(Lys), tRNA(Glu) and tRNA(Gln), a post-transcriptional modification believed to be important for accurate and efficient synthesis of the 13 respiratory chain subunits encoded by mtDNA.
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