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Related Concept Videos

Nature and Nurture01:10

Nature and Nurture

Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience, such as differences...
Unusual Results01:16

Unusual Results

Unusual results are those that have a very low chance of occurring. Unusual results can be identified using probabilities and the range rule of thumb. In problems involving probability, unusual results can be observed in 2 instances – an unusually high number of successes or an unusually low number of successes.
According to the range rule of thumb, any value above or below two standard deviations, 2σ  from the mean, μ  is considered unusual.
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Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...
Instinctive Drift01:05

Instinctive Drift

Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
Naturalistic Observations02:30

Naturalistic Observations

If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
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Unrenewable Cells

In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
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A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer
07:52

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Published on: April 12, 2017

UVRAG reveals its second nature.

Karolina Peplowska1, Margarita Cabrera, Christian Ungermann

  • 1Department of Biology, University of Osnabrück, Barbarastrasse 13, 49076 Osnabrück, Germany.

Nature Cell Biology
|July 2, 2008
PubMed
Summary
This summary is machine-generated.

The UVRAG protein, a key regulator of autophagosome formation, also aids in autophagosome maturation. It achieves this by recruiting the fusion machinery essential for late endosome interaction.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Autophagy Research

Background:

  • The Unc-51 like autophagy activating enzyme (UVRAG) is a crucial protein involved in the autophagy pathway.
  • Autophagosome formation is a complex process regulated by various proteins, including UVRAG.

Discussion:

  • This study reveals a novel role for UVRAG beyond autophagosome formation, highlighting its function in autophagosome maturation.
  • UVRAG actively recruits the late endosome fusion machinery, a critical step for autophagosome clearance.

Key Insights:

  • UVRAG's dual role in both autophagosome formation and maturation is now established.
  • The recruitment of late endosome fusion components by UVRAG is essential for autophagic flux.

Outlook:

  • Further research can explore therapeutic strategies targeting UVRAG for diseases associated with impaired autophagy.
  • Understanding UVRAG's interaction with the fusion machinery could lead to new insights into endolysosomal trafficking.