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Conservation of OFD1 Protein Motifs: Implications for Discovery of Novel Interactors and the OFD1 Function

Przemysław Jagodzik1, Ewa Zietkiewicz1, Zuzanna Bukowy-Bieryllo1

  • 1Institute of Human Genetics Polish Academy of Sciences, Strzeszynska 32, 60-479 Poznan, Poland.

International Journal of Molecular Sciences
|February 13, 2025
PubMed

Insights

The OFD1 protein acts as a scaffold, interacting with numerous proteins and undergoing regulation via post-translational modifications (PTMs). This study identified conserved binding motifs and PTM sites within OFD1, highlighting its complex regulatory network.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Evolutionary Biology

Background:

  • OFD1 is a crucial protein involved in diverse cellular functions, including cilia biogenesis and DNA repair.
  • Despite its importance, only a few OFD1 interactors and their binding sites have been experimentally validated.

Purpose of the Study:

  • To identify conserved protein-binding motifs and post-translational modification (PTM) sites in the OFD1 protein.
  • To elucidate the regulatory mechanisms governing OFD1 function and interactions.

Main Methods:

  • Comparative sequence analysis of OFD1 across 80 Tetrapoda, 144 Vertebrata, and 26 Animalia species.
  • Identification of conserved protein-binding motifs and potential PTM sites using evolutionary conservation data.

Main Results:

  • Discovered 59 conserved protein-binding motifs within OFD1.
  • Identified 14 potential PTM sites, including phosphorylation sites for protein kinases and a binding site for Phosphatase 2A.
  • Found a specific docking site and phosphorylation motif for mitogen-activated protein kinases (MAPKs) in OFD1.

Conclusions:

  • OFD1 functions as a protein scaffold, integrating signals through extensive PTMs and protein interactions.
  • The identified conserved motifs and PTM sites provide a foundation for understanding OFD1 regulation and function.
  • Future research should investigate the precise regulation of OFD1's function and cellular localization.
Keywords:
evolutionary conservationoral-facial-digital protein 1protein–protein interactionsshort linear motifs

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