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Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
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Related Experiment Video

Updated: May 31, 2026

Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay
07:55

Characterizing Mammalian Zinc Transporters Using an In Vitro Zinc Transport Assay

Published on: June 2, 2023

Zinc finger structure-function in Ikaros Marvin A Payne.

Marvin A Payne1

  • 1Department of Chemistry and Biochemistry, La Sierra University, 4500 Riverwalk Parkway, Riverside, CA, USA.

World Journal of Biological Chemistry
|July 19, 2011
PubMed
Summary

Ikaros zinc fingers are crucial for T-cell differentiation. Understanding their structure, including isoforms, clarifies Ikaros protein function and guides future research.

Keywords:
C2H2DNA binding proteinIkarosTandemTranscription factor IIIAZinc finger

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Area of Science:

  • Molecular Biology
  • Immunology
  • Structural Biology

Background:

  • The Ikaros gene, discovered during T-cell differentiation studies, is central to Ikaros protein function.
  • Alternative splicing of the Ikaros gene generates multiple isoforms, complicating in vivo functional analysis.
  • Six C2H2 zinc fingers are key to Ikaros's in vivo functions, with four variably included in isoforms.

Purpose of the Study:

  • To review the structural aspects of Ikaros zinc fingers.
  • To provide a structural context for Ikaros protein function.
  • To offer a structural basis for future Ikaros research.

Main Methods:

  • Literature review focusing on accumulated evidence regarding zinc finger structure.
  • Analysis of individual and tandem Ikaros zinc finger structures.
  • Synthesis of structural information to inform functional understanding.

Main Results:

  • Detailed summary of the structural features of Ikaros zinc fingers.
  • Explanation of how zinc finger structure relates to Ikaros protein function.
  • Identification of structural elements critical for Ikaros isoform diversity.

Conclusions:

  • The structure of Ikaros zinc fingers is fundamental to understanding its diverse functions.
  • Structural insights can guide the design of targeted experiments for Ikaros and its family.
  • Further structural studies are warranted to fully elucidate Ikaros's role in biological processes.