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Human CARD12 is a novel CED4/Apaf-1 family member that induces apoptosis

B J Geddes1, L Wang, W J Huang

  • 1Millennium Pharmaceuticals, Inc., Cambridge, Massachusetts 02139, USA.

Biochemical and Biophysical Research Communications
|May 26, 2001
PubMed

Insights

A new protein, CARD12, regulates programmed cell death (apoptosis) and inflammation. It interacts with ASC and caspase-1, suggesting a role in coordinating cell death and inflammatory signaling pathways.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Immunology

Background:

  • The CED4/Apaf-1 protein family are key regulators of apoptosis and NF-kappaB signaling.
  • Understanding novel members of this family is crucial for elucidating complex cellular processes.

Purpose of the Study:

  • To identify and characterize a novel human member of the CED4/Apaf-1 protein family.
  • To investigate the functional interactions and potential roles of this new protein in cellular signaling.

Main Methods:

  • Protein identification and structural analysis.
  • Expression studies in cells to assess apoptotic activity.
  • Co-precipitation assays to identify interacting partners.

Main Results:

  • A novel human protein, CARD12, was identified, structurally similar to CARD4.
  • CARD12 induces apoptosis and its CARD domain interacts with ASC.
  • CARD12 was found to coprecipitate with caspase-1.

Conclusions:

  • CARD12 is a novel CED4/Apaf-1 family member that induces apoptosis.
  • CARD12 may function in a complex with ASC and caspase-1 to regulate both apoptotic and inflammatory signaling pathways.

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