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A protein that mobilizes the cofactor molecule haem for use in cells

Haem, the molecule that gives blood its red colour, is crucial for nearly all life on Earth, but it can be toxic to cells. A protein called HRG-9 has a previously unrecognized role, in various species, in trafficking haem safely from sites where it is synthesized or stored to places where it can be used.
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This is a summary of: Sun, F. et al. HRG-9 homologues regulate haem trafficking from haem-enriched compartments. Nature https://doi.org/10.1038/s41586-022-05347-z (2022).

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doi: https://doi.org/10.1038/d41586-022-03149-x

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