Page last updated: 2024-10-15

archaeosine

Description

archaeosine: post-transcriptional modification seen in archaeal RNA; structure given in first source [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

archaeosine : A 7-deazaguanine ribonucleoside having 7-formamidino-7-deazaguanine as the nucleobase. It is found in the majority of archaeal tRNAs specifically at position 15 of the dihydrouridine loop (D-loop), a position not modified in either eukaryotic or bacterial tRNA. [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 CID135718450
CHEBI ID73271
MeSH IDM0216342

Synonyms (13)

Synonym
archaeosine
2-amino-7-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-oxo-1h-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
2-amino-4,7-dihydro-4-oxo-7-beta-d-ribofuranosyl-1h-pyrrolo(2,3-d)pyrimidine-5-carboximidamide
148608-52-0
1h-pyrrolo(2,3-d)pyrimidine-5-carboximidamide, 2-amino-4,7-dihydro-4-oxo-7-beta-d-ribofuranosyl-
g*
7-formamidino-7-deazaguanosine
CHEBI:73271
2-amino-4-oxo-7-(beta-d-ribofuranosyl)-4,7-dihydro-3h-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
2-amino-4,7-dihydro-4-oxo-7-beta-d-ribofuranosyl-1h-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
Q632302
2-amino-7-[(2r,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-oxo-3h-pyrrolo[2,3-d]pyrimidine-5-carboximidamide
DTXSID801318234

Research Excerpts

Overview

Archaeosine is a novel derivative of 7-deazaguanosine found in transfer RNAs of most organisms exclusively in the archaeal phylogenetic lineage. It is present in the D-loop at position 15.

ExcerptReference
"Archaeosine (G⁺) is a structurally complex modified nucleoside ubiquitous to the Archaea, where it is found in the D-loop of virtually all archaeal transfer RNA (tRNA). "( QueF-Like, a Non-Homologous Archaeosine Synthase from the Crenarchaeota.
Bao, L; Bon Ramos, A; de Crécy-Lagard, V; Iwata-Reuyl, D; Turner, B, 2017
)
"Archaeosine is a novel derivative of 7-deazaguanosine found in transfer RNAs of most organisms exclusively in the archaeal phylogenetic lineage and is present in the D-loop at position 15. "( Biosynthesis of archaeosine, a novel derivative of 7-deazaguanosine specific to archaeal tRNA, proceeds via a pathway involving base replacement on the tRNA polynucleotide chain.
Akimoto, H; Asahi, S; Crain, PF; Hashizume, T; Katze, JR; Matsuo, M; McCloskey, JA; Nishimura, S; Okada, N; Tanaka, S; Watanabe, M, 1997
)
[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 (19)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's2 (10.53)18.2507
2000's5 (26.32)29.6817
2010's11 (57.89)24.3611
2020's1 (5.26)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%
Reviews2 (10.53%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other17 (89.47%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]