Page last updated: 2024-10-15

nucleoside q

Description

Nucleoside Q: A modified nucleoside which is present in the first position of the anticodon of tRNA-tyrosine, tRNA-histidine, tRNA-asparagine and tRNA-aspartic acid of many organisms. It is believed to play a role in the regulatory function of tRNA. Nucleoside Q can be further modified to nucleoside Q*, which has a mannose or galactose moiety linked to position 4 of its cyclopentenediol moiety. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

queuosine : A nucleoside found in tRNA that has an additional cyclopentenyl ring added via an NH group to the methyl group of 7-methyl-7-deazaguanosine. The cyclopentenyl ring may carry other substituents. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID135540987
CHEBI ID60193
SCHEMBL ID15972263
MeSH IDM0015065

Synonyms (14)

Synonym
nucleoside q
queuosine
CHEBI:60193
57072-36-3
2-amino-5-({[(1s,4s,5r)-4,5-dihydroxycyclopent-2-en-1-yl]amino}methyl)-7-(beta-d-ribofuranosyl)-1,7-dihydro-4h-pyrrolo[2,3-d]pyrimidin-4-one
q (nucleoside)
2-amino-5-[[[(1s,4s,5r)-4,5-dihydroxycyclopent-2-en-1-yl]amino]methyl]-7-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1h-pyrrolo[2,3-d]pyrimidin-4-one
4h-pyrrolo(2,3-d)pyrimidin-4-one, 2-amino-5-(((4,5-dihydroxy-2-cyclopenten-1-yl)amino)methyl)-1,7-dihydro-7-beta-d-ribofuranosyl-, (1s-(1alpha,4beta,5beta))-
SCHEMBL15972263
DTXSID50205684
Q425950
QQXQGKSPIMGUIZ-AEZJAUAXSA-N
2-amino-5-[[[(1s,4s,5r)-4,5-dihydroxycyclopent-2-en-1-yl]amino]methyl]-7-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-3h-pyrrolo[2,3-d]pyrimidin-4-one
AT39288

Bioavailability

ExcerptReference
" melanogaster reflect bioavailability of the precursor queuine, which eukaryotes scavenge from the tRNAs of bacteria and absorb in the gut."( A nutrient-driven tRNA modification alters translational fidelity and genome-wide protein coding across an animal genus.
Aquadro, CF; Drummond, DA; DuMont, VL; Pan, T; Wallace, EW; Zaborske, JM, 2014
)
" In eukaryotes, levels of tRNA queuosinylation reflect the bioavailability of the precursor queuine, which is salvaged from the diet and gut microbiota."( Queuosine-modified tRNAs confer nutritional control of protein translation.
Cirzi, C; Dittmar, G; Ehrenhofer-Murray, AE; Federico, G; Gröne, HJ; Legrand, C; Liebers, R; Lyko, F; Müller, M; Tuorto, F, 2018
)
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Drug Classes (1)

ClassDescription
7-deazaguanine ribonucleoside
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Research

Studies (128)

TimeframeStudies, This Drug (%)All Drugs %
pre-199028 (21.88)18.7374
1990's9 (7.03)18.2507
2000's32 (25.00)29.6817
2010's34 (26.56)24.3611
2020's25 (19.53)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews18 (13.74%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other113 (86.26%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]