Ferritin: Difference between revisions
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<applet load='Pdb2jd7.pdb' size='400' frame='true' align='right' scene="Ferritin/Starting_ferritin_scene/1" caption="Crystal structure of Fe-soaked ferritin from the hyperthermophilic archael anaerobe ''Pyrococcus furiousus'', [[2jd7]]" /> | <applet load='Pdb2jd7.pdb' size='400' frame='true' align='right' scene="Ferritin/Starting_ferritin_scene/1" caption="Crystal structure of Fe-soaked ferritin from the hyperthermophilic archael anaerobe ''Pyrococcus furiousus'', [[2jd7]]" /> | ||
[[Ferritin]] (FR) is an iron storage and release protein. It stores iron as microcrystals with phosphate and hydroxide ions. FR is composed of 24 subunits of heavy chain (FTH) and light chain (FTL).<br /> | [[Ferritin]] (FR) is an iron storage and release protein. It stores iron as microcrystals with phosphate and hydroxide ions. FR is composed of 24 subunits of heavy chain (FTH) and light chain (FTL). Amphibians have an additional middle subunit FR (FTM).<br /> | ||
* '''Bacterioferritin''' (BFR) structure is very similar to FR. It contains a binuclear iron center and haem. It stores iron as ferric oxide mineral in its hollow central cavity.<br /> | * '''Bacterioferritin''' (BFR) structure is very similar to FR. It contains a binuclear iron center and haem. It stores iron as ferric oxide mineral in its hollow central cavity.<br /> | ||
* '''Thioferritin''' (TFR) is a ferritin-related protein with 2 cysteine residues adjacent to the dimetal binding site.<br /> | * '''Thioferritin''' (TFR) is a ferritin-related protein with 2 cysteine residues adjacent to the dimetal binding site.<br /> | ||