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Adjusting a Traverse01:12

Adjusting a Traverse

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In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
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iMAPping the Perturb-Atlas.

Yiwen Sun1, Wenyang Lin1, Ravinder Kaundal2,3

  • 1Gene Editing Center, School of Life Sciences and Technology, ShanghaiTech University, Shanghai 201210, China.

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|January 28, 2025
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Summary

Researchers developed inducible Mosaic Animal for Perturbation (iMAP) to rapidly uncover mammalian genome function. This tool profiled 90 genes across 39 mouse tissues, yielding novel insights into gene roles.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Mammalian Genetics

Background:

  • Deciphering mammalian genome function remains a significant challenge in the postgenomic era.
  • Previous functional genomics efforts have yielded limited success in fully elucidating gene functions.
  • Understanding gene function is crucial for advancing biological and medical research.

Purpose of the Study:

  • To introduce and validate the inducible Mosaic Animal for Perturbation (iMAP) tool for rapid in situ mammalian genome function analysis.
  • To demonstrate the utility of iMAP in constructing a comprehensive gene function atlas.
  • To provide insights into gene functions not easily discoverable through conventional methods.

Main Methods:

  • Integration of CRISPR-Cas and Cre-Lox technologies to create the iMAP system.
  • Application of iMAP for high-throughput perturbation and analysis of gene function.
  • Construction of a "Perturb-Atlas" by profiling 90 protein-coding genes across 39 mouse tissues.

Main Results:

  • Successful development and implementation of the iMAP technology for rapid genome function studies.
  • Creation of a "Perturb-Atlas" offering functional insights into 90 genes across diverse tissues.
  • Identification of gene functions that are challenging to study using traditional mouse models.

Conclusions:

  • iMAP is a transformative tool for accelerating the understanding of mammalian genome function.
  • The "Perturb-Atlas" provides a valuable resource for the research community.
  • Future research directions include refining iMAP and expanding its application to a wider range of genes and biological questions.