Study of Cytochrome c-554 from Methylosinus trichosporium OB3b
Author Information
Author(s): Harbitz Espen, Andersson K. Kristoffer
Primary Institution: Department of Molecular Biosciences, University of Oslo, Oslo, Norway
Hypothesis
The structural basis for the HALS EPR signal in Histidine/Methionine ligated hemes is not resolved.
Conclusion
Cytochrome c-554 exhibits a highly anisotropic low spin EPR signal, indicating its unique properties compared to other cytochromes.
Supporting Evidence
- Cytochrome c-554 is a mono heme protein with a characteristic cytochrome c fold.
- It exhibits a highly anisotropic/axial low spin EPR signal.
- The ligand field parameters observed fit the pattern for other cytochromes with similar ligation and EPR behavior.
Takeaway
Scientists studied a special protein called cytochrome c-554 from a type of bacteria that eats methane, and they found it has unique signals that help understand how it works.
Methodology
The study involved purification and analysis of cytochrome c-554 using various spectroscopic techniques including EPR, mass spectrometry, and absorption spectroscopy.
Limitations
The structural basis for the HALS EPR signal is not fully understood.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website