Related Experiment Video

Updated: Apr 6, 2026

Genome-wide Analysis of Aminoacylation Charging Levels of tRNA Using Microarrays
07:32

Genome-wide Analysis of Aminoacylation Charging Levels of tRNA Using Microarrays

Published on: June 18, 2010

12.9K

Expanding a tyrosyl-tRNA synthetase assay to other aminoacyl-tRNA synthetases

Charles J Richardson1, Eric A First1

  • 1Department of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center in Shreveport, 1501 Kings Highway, Shreveport, LA 71130, USA.

Data in Brief
|July 29, 2015
PubMed

Keywords:
Aminoacyl-tRNA synthetaseCyclodipeptide synthaseEditing domainHigh-throughput assayd-tyrosyl-tRNA deacylase

More Related Videos

An In Vitro Assay to Detect tRNA-Isopentenyl Transferase Activity07:46

An In Vitro Assay to Detect tRNA-Isopentenyl Transferase Activity

Published on: October 8, 2018

7.5K
Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses11:19

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses

Published on: February 25, 2011

20.4K

Related Concept Videos

tRNA Activation02:26

tRNA Activation

Aminoacyl-tRNA synthetases are present in both eukaryotes and bacteria. Though eukaryotes have 20 different aminoacyl-tRNA synthetases to couple to 20 amino acids, many bacteria do not have genes for all of these aminoacyl-tRNA synthetases. Despite this, they still use all 20 amino acids to synthesize their proteins. For instance, some bacteria do not have the gene encoding the enzyme that couples glutamine with its partner tRNA. In these organisms, one enzyme adds glutamic acid to all of the...
24.3K
tRNA Activation02:26

tRNA Activation

9.0K
Improving Translational Accuracy02:07

Improving Translational Accuracy

Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
15.6K
Transfer RNA Synthesis02:36

Transfer RNA Synthesis

One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
13.8K
Transfer RNA Synthesis02:35

Transfer RNA Synthesis

4.0K
Allosteric Proteins-ATCase01:19

Allosteric Proteins-ATCase

Binding sites linkages can regulate a protein's function.  For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to  N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
6.9K