Biosynthesis of the 7-deazaguanosine hypermodified nucleosides of transfer RNA

D Iwata-Reuyl - Bioorganic chemistry, 2003 - Elsevier
Transfer RNA (tRNA) is structurally unique among nucleic acids in harboring an astonishing
diversity of post-transcriptionally modified nucleoside. Two of the most radically modified …

Mechanism and Substrate Specificity of tRNA–Guanine Transglycosylases (TGTs): tRNA‐Modifying Enzymes from the Three Different Kingdoms of Life Share a …

B Stengl, K Reuter, G Klebe - ChemBioChem, 2005 - Wiley Online Library
Transfer RNA–guanine transglycosylases (TGTs) are evolutionarily ancient enzymes,
present in all kingdoms of life, catalyzing guanine exchange within their cognate tRNAs by …

[图书][B] Carbohydrate chemistry and biochemistry: structure and mechanism

M Sinnott - 2013 - books.google.com
This graduate textbook is aimed at providing researchers new to the subject with information
on the structure and mechanisms in the chemistry, biochemistry or processing of …

Comparison of a preQ1 riboswitch aptamer in metabolite-bound and free states with implications for gene regulation

JL Jenkins, J Krucinska, RM McCarty… - Journal of Biological …, 2011 - ASBMB
Riboswitches are RNA regulatory elements that govern gene expression by recognition of
small molecule ligands via a high affinity aptamer domain. Molecular recognition can lead to …

Site-specific covalent labeling of RNA by enzymatic transglycosylation

SC Alexander, KN Busby, CM Cole… - Journal of the …, 2015 - ACS Publications
We demonstrate the site-specific incorporation of nucleobase derivatives bearing
fluorophores or affinity labels into a short RNA stem loop recognition motif by exchange of a …

From cyclohydrolase to oxidoreductase: discovery of nitrile reductase activity in a common fold

SG Van Lanen, JS Reader… - Proceedings of the …, 2005 - National Acad Sciences
The enzyme YkvM from Bacillus subtilis was identified previously along with three other
enzymes (YkvJKL) in a bioinformatics search for enzymes involved in the biosynthesis of …

Structural and biochemical investigation of the heterodimeric murine tRNA-Guanine transglycosylase

M Sebastiani, C Behrens, S Dörr… - ACS Chemical …, 2022 - ACS Publications
In tRNAAsp, tRNAAsn, tRNATyr, and tRNAHis of most bacteria and eukaryotes, the
anticodon wobble position may be occupied by the modified nucleoside queuosine, which …

Queuosine formation in eukaryotic tRNA occurs via a mitochondria-localized heteromeric transglycosylase

C Boland, P Hayes, I Santa-Maria, S Nishimura… - Journal of Biological …, 2009 - ASBMB
tRNA guanine transglycosylase (TGT) enzymes are responsible for the formation of
queuosine in the anticodon loop (position 34) of tRNA Asp, tRNA Asn, tRNA His, and tRNA …

A new target for shigellosis: rational design and crystallographic studies of inhibitors of tRNA-guanine transglycosylase

U Grädler, HD Gerber… - Journal of Molecular …, 2001 - Elsevier
Eubacterial tRNA-guanine transglycosylase (TGT) is involved in the hyper-modification of
cognate tRNAs leading to the exchange of G34 at the wobble position in the anticodon loop …

Queuosine modification of tRNA: a case for convergent evolution

RC Morris, MS Elliott - Molecular genetics and metabolism, 2001 - Elsevier
Queuosine is a hypermodified nucleoside found in position 34, the anticodon wobble
position, of four tRNA species. This modification is distributed with near uniformity across all …