. Author manuscript; available in PMC: 2022 Jan 1.

Published in final edited form as: Biochim Biophys Acta Mol Cell Res. 2020 Oct 3;1868(1):118881. doi: 10.1016/j.bbamcr.2020.118881

Table 1.

Metazoan Heme Transporters.

Directionality of Transport	Transporter	Localization	Species	Ref.
Import	HRG1	Endosome / Lysosomal	All metazoans	[115]
	FLVCR1b	Mitochondria	Vertebrates	[46]
	HRG-4	Plasma Membrane	Worms	[44]
	FLVCR2	Plasma Membrane	Mammals	[45]
Export	MRP5	Endosome / Plasma Membrane	All metazoans	[122]
	FLVCR1a	Plasma Membrane	Vertebrates	[172]
	ABCG2	Plasma Membrane	Vertebrates	[148]
	HRG-3	Secretory	Worms	[165]