Results 41 to 50 of about 31,015 (230)

Solving the riddle of codon usage preferences: a test for translational selection [PDF]

open access: yes, 1998
Translational selection is responsible for the unequal usage of synonymous codons in protein coding genes in a wide variety of organisms. It is one of the most subtle and pervasive forces of molecular evolution, yet, establishing the underlying causes ...
A Kaminskii   +17 more
core   +3 more sources

LARP4 mRNA codon-tRNA match contributes to LARP4 activity for ribosomal protein mRNA poly(A) tail length protection

open access: yeseLife, 2017
Messenger RNA function is controlled by the 3' poly(A) tail (PAT) and poly(A)-binding protein (PABP). La-related protein-4 (LARP4) binds poly(A) and PABP.
Sandy Mattijssen   +6 more
doaj   +1 more source

Expanding codon size

open access: yeseLife, 2022
Engineering transfer RNAs to read codons consisting of four bases requires changes in tRNA that go beyond the anticodon sequence.
Tarana Siddika   +2 more
doaj   +1 more source

An Unnatural Amino Acid-Regulated Growth Controller Based on Informational Disturbance

open access: yesLife, 2021
We designed a novel growth controller regulated by feeding of an unnatural amino acid, Nε-benzyloxycarbonyl-l-lysine (ZK), using a specific incorporation system at a sense codon. This system is constructed by a pair of modified pyrrolisyl-tRNA synthetase
Yusuke Kato
doaj   +1 more source

The Genetic Code as a Periodic Table: Algebraic Aspects [PDF]

open access: yes, 2000
The systematics of indices of physico-chemical properties of codons and amino acids across the genetic code are examined. Using a simple numerical labelling scheme for nucleic acid bases, data can be fitted as low-order polynomials of the 6 coordinates ...
Bashford   +30 more
core   +3 more sources

The ribosome prohibits the G•U wobble geometry at the first position of the codon–anticodon helix

open access: yesNucleic Acids Research, 2016
Precise conversion of genetic information into proteins is essential to cellular health. However, a margin of error exists and is at its highest on the stage of translation of mRNA by the ribosome. Here we present three crystal structures of 70S ribosome
A. Rozov   +3 more
semanticscholar   +1 more source

Ordering events in a developing genetic code

open access: yesRNA Biology
Preexisting partial genetic codes can fuse to evolve towards the complete Standard Genetic Code (SGC). Such code fusion provides a path of ‘least selection’, readily generating precursor codes that resemble the SGC.
Michael Yarus
doaj   +1 more source

Symmetry and Minimum Principle at the Basis of the Genetic Code

open access: yes, 2017
The importance of the notion of symmetry in physics is well established: could it also be the case for the genetic code? In this spirit, a model for the Genetic Code based on continuous symmetries and entitled the "Crystal Basis Model" has been proposed ...
Sciarrino, A., Sorba, P.
core   +1 more source

Selective gene expression maintains human tRNA anticodon pools during differentiation

open access: yesNature Cell Biology
Transfer RNAs are essential for translating genetic information into proteins. The human genome contains hundreds of predicted tRNA genes, many in multiple copies. How their expression is regulated to control tRNA repertoires is unknown. Here we combined
Lexi Gao   +6 more
semanticscholar   +1 more source

tRNA anticodon loop modifications ensure protein homeostasis and cell morphogenesis in yeast

open access: yesNucleic Acids Research, 2016
Using budding yeast, we investigated a negative interaction network among genes for tRNA modifications previously implicated in anticodon-codon interaction: 5-methoxy-carbonyl-methyl-2-thio-uridine (mcm5s2U34: ELP3, URM1), pseudouridine (Ψ38/39: DEG1 ...
Roland Klassen   +5 more
semanticscholar   +1 more source

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