Fukutin-Related Protein Resides in the Golgi Cisternae of Skeletal Muscle Fibres and Forms Disulfide-Linked Homodimers via an N-Terminal Interaction
2011

FKRP Localization and Interactions in Muscle Cells

publication Evidence: moderate

Author Information

Author(s): Alhamidi Maisoon, Kjeldsen Buvang Elisabeth, Fagerheim Toril, Brox Vigdis, Lindal Sigurd, Van Ghelue Marijke, Nilssen Øivind

Primary Institution: University Hospital of North-Norway, Tromsø, Norway

Hypothesis

The study investigates the localization and interactions of Fukutin-Related Protein (FKRP) in human skeletal muscle cells.

Conclusion

FKRP is localized in the Golgi apparatus of muscle cells and forms disulfide-linked homodimers.

Supporting Evidence

  • FKRP co-localizes with the Golgi marker MG160 in human muscle cells.
  • FKRP can form homodimers linked by a disulfide bridge.
  • N-glycosylation of FKRP is not required for dimer or multimer formation.

Takeaway

FKRP is a protein found in muscle cells that helps with muscle function, and it sticks together in pairs to work properly.

Methodology

The study used immunogold electron microscopy, chemical cross-linking, and yeast two-hybrid experiments to analyze FKRP localization and interactions.

Digital Object Identifier (DOI)

10.1371/journal.pone.0022968

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