Title : Moonlighting cell-surface GAPDH recruits apotransferrin to effect iron egress from mammalian cells.

Pub. Date : 2014 Oct 1

PMID : 25074810






9 Functional Relationships(s)
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1 Moonlighting cell-surface GAPDH recruits apotransferrin to effect iron egress from mammalian cells. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
2 Previous studies have revealed that iron-depleted cells recruit glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a multitasking, "moonlighting" protein, to their surface for internalization of the iron carrier holotransferrin. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
3 Previous studies have revealed that iron-depleted cells recruit glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a multitasking, "moonlighting" protein, to their surface for internalization of the iron carrier holotransferrin. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
4 Previous studies have revealed that iron-depleted cells recruit glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a multitasking, "moonlighting" protein, to their surface for internalization of the iron carrier holotransferrin. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
5 Previous studies have revealed that iron-depleted cells recruit glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a multitasking, "moonlighting" protein, to their surface for internalization of the iron carrier holotransferrin. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
6 Here, we report that under the converse condition of intracellular iron excess, cells switch the isoform of GAPDH on their surface to one that now recruits iron-free apotransferrin in close association with ferroportin to facilitate the efflux of iron. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
7 Here, we report that under the converse condition of intracellular iron excess, cells switch the isoform of GAPDH on their surface to one that now recruits iron-free apotransferrin in close association with ferroportin to facilitate the efflux of iron. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
8 Here, we report that under the converse condition of intracellular iron excess, cells switch the isoform of GAPDH on their surface to one that now recruits iron-free apotransferrin in close association with ferroportin to facilitate the efflux of iron. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens
9 Increased expression of surface GAPDH correlated with increased apotransferrin binding and enhanced iron export from cells, a capability lost in GAPDH-knockdown cells. Iron glyceraldehyde-3-phosphate dehydrogenase Homo sapiens