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Efficient Sporulation of Saccharomyces cerevisiae in a 96 Multiwell Format
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Uip4p modulates nuclear pore complex function in Saccharomyces cerevisiae.

Pallavi Deolal1, Imlitoshi Jamir2, Krishnaveni Mishra1

  • 1Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, India.

Nucleus (Austin, Tex.)
|February 16, 2022
PubMed
Summary
This summary is machine-generated.

A novel protein, Uip4p, is essential for maintaining nuclear shape and nuclear envelope integrity in yeast. Its regulation is crucial for proper nuclear pore complex distribution and overall cell function.

Keywords:
Nuclear envelopeUip4nuclear pore complexyeast

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Area of Science:

  • Cell Biology
  • Molecular and Cellular Biology
  • Yeast Genetics

Background:

  • The nucleus, a defining organelle in eukaryotic cells, is enclosed by a double membrane bilayer perforated by nuclear pore complexes (NPCs).
  • Nuclear morphology is stably maintained in yeasts, despite the absence of lamins, and shape changes are regulated.
  • Understanding the factors regulating nuclear shape and function in Saccharomyces cerevisiae is crucial for cell biology research.

Purpose of the Study:

  • To identify novel factors involved in the regulation of nuclear shape and function in Saccharomyces cerevisiae.
  • To investigate the role of a newly identified protein, Uip4p, in nuclear morphology.

Main Methods:

  • Utilized a fluorescence imaging-based approach to screen for proteins affecting nuclear shape and function.
  • Performed localization studies to determine the cellular location of Uip4p.
  • Analyzed the expression and localization patterns of Uip4p during cell growth.

Main Results:

  • Identified a novel protein, Uip4p, essential for the regulation of nuclear morphology.
  • Demonstrated that loss of Uip4p function compromises nuclear pore complex (NPC) function and nuclear envelope (NE) integrity.
  • Showed that Uip4p localizes to the NE and endoplasmic reticulum (ER) network, with its localization and expression regulated during growth.

Conclusions:

  • Uip4p plays a critical role in maintaining nuclear envelope integrity and nuclear pore complex function in Saccharomyces cerevisiae.
  • The regulated localization and expression of Uip4p during growth are vital for proper NPC distribution.
  • Uip4p represents a key factor in the regulation of nuclear shape and function in yeast.