“Junk DNA” Can Encode the Proteins - PowerPoint PPT Presentation

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“Junk DNA” Can Encode the Proteins

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Title: “Junk DNA” Can Encode the Proteins


1
Junk DNA Can Encode the Proteins
  • Editor Elaine
  • Company Creative Peptides
  • Website http//www.creative-peptides.com/
  • Tel 1-631-624-4882
  • Emailinfo_at_creative-peptides.com

2
  • Subverting the traditional theory junk DNA can
    also encode the proteins.
  • Recently, it's reported that some scientists in
    Sweden used a new method for protein analysis and
    they found nearly one hundred kinds of novel gene
    regions for human protein-coding. Many of the
    regions are so-called pseudogenes, and they are
    probably associated with cancer. The researchers
    expected that this new approach will promote a
    whole new field of study.

3
  • All information about human genome is stored in
    the DNA sequence of nucleus, and scientists have
    already drawn out of the map in the early 21th
    century. Gene refers to different portions of a
    predetermined type of DNA that can encode the
    proteins. In the past few decades, researchers
    used DNA analysis to define approximately 21,000
    human protein-coding genes. In different cell
    types, different protein-coding genes might be in
    the activation or deactivation state, which means
    many medical diseases are related to changes in
    gene activity and specificity.
  • In terms of human genome, only about 1.5 percent
    of DNA is composed of protein-coding genes. While
    as for the remain DNA, some regulatory sequences
    are used for adjusting genes protein production.
    But most of the DNA are considered to be a lack
    of use, generally referred to as junk DNA.
    There is a so-called pseudogene in the junk
    DNA, which is always considered as a
    non-functional gene. Certain group of researchers
    also think such gene has lost its function during
    the evolution process.

4
  • In this latest study, scientists proposed a new
    protein genomics method, making it possible to
    trace the protein-coding genes in the remain
    98.5 DNA, which until now has been regarded as
    an impossible task. Research suggests that some
    pseudogenes generated proteins, indicating that
    they do have a function. The researchers said
    that they had to test the peptide sequence and
    match the whole genome data with millions of
    possible sites.
  • In addition, the scientists also developed a new
    experimental and bioinformatics approach to
    conduct protein-based genetic testing, but when
    everything was ready, the researchers just felt
    like they were participating in a genome
    adventure. Cells from the mice also received
    similar findings. Many of the new proteins
    encoded by pseudogenes can be traced in other
    cancer cells, too. The next task for those
    researchers is to know whether the genes in
    genome garbage dump present an important role
    in cancer or any other diseases.

5
  • The researchers noted that the study of junk
    DNA does challenge the old theory of fake
    protein-coding genes. The proposed method allows
    to conduct the genomic annotation in organisms
    with complicated protein-based genomes, which
    will contribute to find massive new
    protein-coding genes in any species with a known
    DNA sequence in human organisms.
  • About Author
  • Creative Peptides is specialized in the process
    development and the manufacturing of bioactive
    peptides. It offers custom peptide synthesis,
    process development, GMP manufacturing as well as
    catalog products. Visit http//www.creative-peptid
    es.com/ to know more.
  • Source(Read full text)
  • http//www.biotechsciencenews.com/Person/list/edit
    /75044_My_Blog_38.html
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