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Related Concept Videos

Translation01:31

Translation

157.1K
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...
157.1K
Translation01:31

Translation

17.9K
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
Proteins are...
17.9K
Initiation of Translation02:33

Initiation of Translation

39.1K
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs.
First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
39.1K
Termination of Translation01:44

Termination of Translation

27.8K
The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is the site where the peptide bond is formed - and a large, internal, water-filled tube through which the nascent polypeptide moves. This latter structure is called the Peptide Exit Tunnel, and it begins at the PTC and spans the body of the large ribosomal subunit. During translation, as the nascent polypeptide chain is synthesized, it passes through...
27.8K
Termination of Translation01:44

Termination of Translation

6.8K
6.8K
Improving Translational Accuracy02:07

Improving Translational Accuracy

15.0K
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...
15.0K

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Author Spotlight: Exploring Dynamic Neural Changes Associated with Religious Chanting
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Translating progress in neuroimaging into clinical practice.

Rory Durcan1, Alan J Thomas1

  • 1Institute of Neuroscience,Biomedical Research Building,Campus for Ageing and Vitality,Newcastle University,Newcastle upon Tyne,UK.

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Summary
This summary is machine-generated.

Neuroimaging research enhances understanding of brain diseases and improves patient diagnosis. Future directions include identifying early disease biomarkers and monitoring treatment effectiveness.

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Area of Science:

  • Neuroimaging research
  • Clinical neuroscience
  • Medical diagnostics

Background:

  • Neuroimaging provides in vivo insights into structural, functional, and molecular neuropathology.
  • It aids in understanding complex brain diseases beyond traditional clinical assessments.
  • Advances in neuroimaging are crucial for improving diagnostic accuracy and patient prognosis.

Discussion:

  • Neuroimaging research is pivotal for informing clinical medical practice.
  • It offers a deeper understanding of neuropathology, aiding diagnosis and prognosis.
  • The field's evolution supports improved patient care where clinical assessment is limited.

Key Insights:

  • Neuroimaging research has significantly advanced the understanding of in vivo neuropathology.
  • It holds substantial potential for enhancing clinical diagnosis and prognosis.
  • The integration of neuroimaging findings improves patient management strategies.

Outlook:

  • Future neuroimaging will focus on identifying preclinical disease biomarkers.
  • Research aims to elucidate the temporal progression from preclinical to overt disease.
  • Monitoring therapeutic efficacy of disease-modifying agents is a key future direction.