Export of heme to the blood by FLVCR Authored: Stephan, R, 2010-07-06 Edited: Jassal, B, 2010-07-30 Pubmed15369674 Pubmed18815190 Reactome Database ID Release 43917892 Reactome, http://www.reactome.org ReactomeREACT_25203 Reviewed: D'Eustachio, P, 2010-11-05 The heme transporter FLVCR is expressed in intestine and liver tissue, but also in developing erythroid cells where it is required to protect them from heme toxicity (Quigley et al, 2004; Rey et al, 2008).