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fh fh Irp-1A Irp-1A Irp-1B Irp-1B Fer1HCH Fer1HCH Fer2LCH Fer2LCH
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fhFrataxin homolog, mitochondrial; Promotes the biosynthesis of heme as well as the assembly and repair of iron-sulfur clusters by delivering Fe(2+) to proteins involved in these pathways. May play a role in the protection against iron-catalyzed oxidative stress through its ability to catalyze the oxidation of Fe(2+) to Fe(3+). May be able to store large amounts of the metal in the form of a ferrihydrite mineral by oligomerization. Required for ecdysteroidogenesis in the prothoracic gland which is necessary for larval to pupal transition. Belongs to the frataxin family. (190 aa)
Irp-1AIron regulatory protein 1A (Irp-1A) encodes a cytosolic aconitase that under iron deficiency (or if cytosolic superoxide is present) loses its iron-sulfur cluster, changes confirmation and binds iron regulatory elements (so far identified on the products of SdhB and Fer1HCH mRNAs); Belongs to the aconitase/IPM isomerase family. (902 aa)
Irp-1BIron regulatory protein 1B (Irp-1B) encodes a cytosolic aconitase highly homologous to the product of Irp-1A; Belongs to the aconitase/IPM isomerase family. (899 aa)
Fer1HCHFerritin 1 heavy chain homologue (Fer1HCH) encodes one of two subunits of the major iron storage complex, the ferritin molecule. In insects, ferritin is assembled from 12 Fer1HCH and 12 Fer2LCH subunits and can be found in the secretory pathway of cells and in hemolymph. The product of Fer1HCH has ferroxidase activity required for iron loading into ferritin and is essential for embryogenesis. (245 aa)
Fer2LCHFerritin 2 light chain homologue (Fer2LCH) encodes one of two subunits of the major iron storage complex, the ferritin molecule. In insects, ferritin is assembled from 12 Fer1HCH and 12 Fer2LCH subunits and can be found in the secretory pathway of cells and in hemolymph. The product of Fer2LCH provides iron nucleation sites in the internal cavity of the complex required for iron mineralization and is essential for embryogenesis. (236 aa)
Your Current Organism:
Drosophila melanogaster
NCBI taxonomy Id: 7227
Other names: D. melanogaster, Diptera sp. DNAS-2A9-224646, Sophophora melanogaster, fruit fly
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