2ffx

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Structure of Human Ferritin L. ChainStructure of Human Ferritin L. Chain

Structural highlights

2ffx is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.9Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

FRIL_HUMAN Defects in FTL are the cause of hereditary hyperferritinemia-cataract syndrome (HHCS) [MIM:600886. It is an autosomal dominant disease characterized by early-onset bilateral cataract. Affected patients have elevated level of circulating ferritin. HHCS is caused by mutations in the iron responsive element (IRE) of the FTL gene.[1] Defects in FTL are the cause of neurodegeneration with brain iron accumulation type 3 (NBIA3) [MIM:606159; also known as adult-onset basal ganglia disease. It is a movement disorder with heterogeneous presentations starting in the fourth to sixth decade. It is characterized by a variety of neurological signs including parkinsonism, ataxia, corticospinal signs, mild nonprogressive cognitive deficit and episodic psychosis. It is linked with decreased serum ferritin levels.[2] [3]

Function

FRIL_HUMAN Stores iron in a soluble, non-toxic, readily available form. Important for iron homeostasis. Iron is taken up in the ferrous form and deposited as ferric hydroxides after oxidation. Also plays a role in delivery of iron to cells. Mediates iron uptake in capsule cells of the developing kidney (By similarity).[4] [5]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

References

  1. Luscieti S, Santambrogio P, Langlois d'Estaintot B, Granier T, Cozzi A, Poli M, Gallois B, Finazzi D, Cattaneo A, Levi S, Arosio P. Mutant ferritin L-chains that cause neurodegeneration act in a dominant-negative manner to reduce ferritin iron incorporation. J Biol Chem. 2010 Apr 16;285(16):11948-57. Epub 2010 Feb 16. PMID:20159981 doi:10.1074/jbc.M109.096404
  2. Luscieti S, Santambrogio P, Langlois d'Estaintot B, Granier T, Cozzi A, Poli M, Gallois B, Finazzi D, Cattaneo A, Levi S, Arosio P. Mutant ferritin L-chains that cause neurodegeneration act in a dominant-negative manner to reduce ferritin iron incorporation. J Biol Chem. 2010 Apr 16;285(16):11948-57. Epub 2010 Feb 16. PMID:20159981 doi:10.1074/jbc.M109.096404
  3. Maciel P, Cruz VT, Constante M, Iniesta I, Costa MC, Gallati S, Sousa N, Sequeiros J, Coutinho P, Santos MM. Neuroferritinopathy: missense mutation in FTL causing early-onset bilateral pallidal involvement. Neurology. 2005 Aug 23;65(4):603-5. PMID:16116125 doi:10.1212/01.wnl.0000178224.81169.c2
  4. Baraibar MA, Muhoberac BB, Garringer HJ, Hurley TD, Vidal R. Unraveling of the E-helices and disruption of 4-fold pores are associated with iron mishandling in a mutant ferritin causing neurodegeneration. J Biol Chem. 2010 Jan 15;285(3):1950-6. Epub 2009 Nov 18. PMID:19923220 doi:10.1074/jbc.M109.042986
  5. Luscieti S, Santambrogio P, Langlois d'Estaintot B, Granier T, Cozzi A, Poli M, Gallois B, Finazzi D, Cattaneo A, Levi S, Arosio P. Mutant ferritin L-chains that cause neurodegeneration act in a dominant-negative manner to reduce ferritin iron incorporation. J Biol Chem. 2010 Apr 16;285(16):11948-57. Epub 2010 Feb 16. PMID:20159981 doi:10.1074/jbc.M109.096404

2ffx, resolution 1.90Å

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