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Related Concept Videos

From DNA to Protein

From DNA to Protein

The flow of genetic information in cells from DNA to mRNA to protein is described by the central dogma, which states that genes specify the sequence of mRNAs, which in turn specify the sequence of amino acids making up all proteins. The decoding of one molecule to another is performed by specific proteins and RNAs. Because the information stored in DNA is so central to cellular function, it makes intuitive sense that the cell would make mRNA copies of this information for protein synthesis...

The Central Dogma

The Central Dogma

The Central Dogma

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...

The Central Dogma

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...

Translation

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life

Translation

Translation

Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life

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Related Experiment Video

Updated: Jul 10, 2026

Residue-specific Incorporation of Noncanonical Amino Acids into Model Proteins Using an Escherichia coli Cell-free Transcription-translation System

Residue-specific Incorporation of Noncanonical Amino Acids into Model Proteins Using an Escherichia coli Cell-free Transcription-translation System

Published on: August 1, 2016

Animated crystallography of genetic code translation.

Kozo Tomita¹, Tomoyuki Numata, Tsutomu Fukai

¹Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Higashi, Tsukuba-shi, Ibaragi 305-8565, Japan.

Nucleic Acids Symposium Series (2004)

|November 22, 2007

Summary

This study reveals the precise mechanisms of transfer RNA (tRNA) maturation enzymes, crucial for accurate genetic code translation. Understanding these processes enhances our knowledge of protein synthesis and genetic information transfer.

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Residue-specific Incorporation of Noncanonical Amino Acids into Model Proteins Using an Escherichia coli Cell-free Transcription-translation System

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Published on: August 1, 2016

Optimizing the Genetic Incorporation of Chemical Probes into GPCRs for Photo-crosslinking Mapping and Bioorthogonal Chemistry in Live Mammalian Cells

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Super-Resolution Imaging of Bacterial Secreted Proteins Using Genetic Code Expansion

Super-Resolution Imaging of Bacterial Secreted Proteins Using Genetic Code Expansion

Published on: February 10, 2023

Area of Science:

Molecular Biology
Biochemistry
Structural Biology

Background:

Accurate genetic code translation relies on specific chemical reactions involving transfer RNA (tRNA) and aminoacyl-tRNA synthetases (aaRSs).
tRNA maturation, involving precursor RNA processing and chemical modifications, is essential for specific aminoacylation by cognate aaRSs.
The precise molecular interactions governing tRNA maturation remain incompletely understood.

Purpose of the Study:

To elucidate the sophisticated mechanisms of tRNA-maturating enzymes.
To understand how these enzymes achieve highly specific chemical reactions during tRNA maturation.
To visualize the dynamic processes of genetic code translation through crystallography.

Main Methods:

X-ray crystallography was employed to determine the structure of tRNA-maturating enzymes complexed with precursor tRNA.
High-resolution structural data were used to capture snapshots of chemical reaction steps.
Animated crystallography was conceptualized to illustrate dynamic molecular processes.

Main Results:

The crystal structure of tRNA-maturating enzymes in complex with precursor tRNA was solved.
The study provides insights into the sophisticated mechanisms of specific chemical reactions in tRNA maturation.
Structural snapshots offer a dynamic view of enzyme-tRNA interactions.

Conclusions:

The solved crystal structures provide a detailed mechanistic understanding of tRNA maturation.
These findings are critical for comprehending the fidelity of genetic code translation.
The study lays the groundwork for visualizing dynamic molecular processes in biological systems.