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Related Concept Videos

Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

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Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
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Peptide Bonds02:43

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A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
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Signal Sequences and Sorting Receptors01:41

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Signal sequences are short amino acid sequences that guide newly synthesized proteins to their proper location within the cell. Classical signal sequences are fifteen to sixty amino acids long and present at the N-terminus of a polypeptide chain. Each signal sequence has a conserved segment of basic residues towards their N terminus, a hydrophobic core, and a C-terminus rich in polar residues. The C-terminus also contains a signal cleavage site and features a -3 -1 sequence motif. The -3-1...
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Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Data storage using peptide sequences.

Cheuk Chi A Ng1,2, Wai Man Tam3, Haidi Yin1,2

  • 1State Key Laboratory of Chemical Biology and Drug Discovery, Research Institute for Future Food and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.

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|July 14, 2021
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Summary

Researchers developed a novel peptide-based data storage method, offering high density and durability. This peptide data storage technique successfully retrieved text and music files, paving the way for advanced digital information preservation.

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Area of Science:

  • Biotechnology
  • Information Science
  • Materials Science

Background:

  • Digital data generation is increasing exponentially, overwhelming current storage technologies.
  • Existing storage devices (electronic, magnetic, optical) have limitations in physical space and long-term durability.
  • There is a critical need for innovative, high-density, and durable data storage solutions.

Purpose of the Study:

  • To explore the feasibility of using peptide sequences for digital data storage.
  • To develop and validate a method for encoding, storing, and retrieving data using peptides.
  • To assess the storage density and durability of peptide-based data storage.

Main Methods:

  • Selection of optimal amino acids for peptide sequence design.
  • Development of address codes and error-correction schemes for data integrity.
  • Optimization of analytical protocols and software for peptide sequence recovery from mass spectrometry data.

Main Results:

  • Successfully stored and retrieved a text file using 40 unique 18-mer peptides.
  • Successfully stored and retrieved the music file 'Silent Night' using 511 unique 18-mer peptides.
  • Demonstrated high storage density and feasibility of peptide-based data storage.

Conclusions:

  • Peptide sequences offer a durable and high-density alternative for data storage.
  • This method integrates peptide synthesis and proteomics techniques for data management.
  • The findings are expected to drive advancements in data storage and related scientific fields.