FDX1

Ferredoxin 1

PDB rendering based on 1ayf.

Available structures
PDB	3NA0, 3P1M

Identifiers

Symbols

FDX1; ADX; FDX; LOH11CR1D

External IDs

OMIM: 103260 MGI: 103224 HomoloGene: 31216 GeneCards: FDX1 Gene

Gene Ontology
Molecular function	• iron ion binding • protein binding • electron carrier activity • enzyme binding • metal ion binding • 2 iron, 2 sulfur cluster binding
Cellular component	• mitochondrion • mitochondrial matrix
Biological process	• generation of precursor metabolites and energy • transport • electron transport chain • regulation of catalytic activity
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 11:
110.3 – 110.34 Mb

Chr 9:
51.75 – 51.77 Mb

PubMed search

[1]

[2]

Adrenodoxin, mitochondrial also known as adrenodoxin (adrenal ferredoxin) or hepatoredoxin or ferredoxin-1 is a protein that in humans is encoded by the FDX1 gene.^[1]^[2] In addition to the expressed gene at this chromosomal locus (11q22), there are pseudogenes located on chromosomes 20 and 21.

Function

Ferredoxin-1 is a small iron-sulfur protein that transfers electrons from NADPH through ferredoxin reductase to a terminal cytochrome P450. This particular oxidation/reduction system is found in steroidogenic tissues, and is involved with the synthesis of bile acid and vitamin D. Ferredoxin-1 has been identified in a number of different tissues but all forms have been shown to be identical and are not tissue specific.^[2]

References

^ Mittal S, Zhu YZ, Vickery LE (Sep 1988). "Molecular cloning and sequence analysis of human placental ferredoxin". Arch Biochem Biophys 264 (2): 383–91. doi:10.1016/0003-9861(88)90303-7. PMID 2969697.
^ ^a ^b "Entrez Gene: FDX1 ferredoxin 1". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=2230.

Grinberg AV, Hannemann F, Schiffler B, et al. (2000). "Adrenodoxin: structure, stability, and electron transfer properties". Proteins 40 (4): 590–612. doi:10.1002/1097-0134(20000901)40:4<590::AID-PROT50>3.0.CO;2-P. PMID 10899784.
Wada A, Waterman MR (1992). "Identification by site-directed mutagenesis of two lysine residues in cholesterol side chain cleavage cytochrome P450 that are essential for adrenodoxin binding". J. Biol. Chem. 267 (32): 22877–82. PMID 1429635.
Sparkes RS, Klisak I, Miller WL (1991). "Regional mapping of genes encoding human steroidogenic enzymes: P450scc to 15q23-q24, adrenodoxin to 11q22; adrenodoxin reductase to 17q24-q25; and P450c17 to 10q24-q25". DNA Cell Biol. 10 (5): 359–65. doi:10.1089/dna.1991.10.359. PMID 1863359.
Skjeldal L, Markley JL, Coghlan VM, Vickery LE (1991). "1H NMR spectra of vertebrate [2Fe-2S] ferredoxins. Hyperfine resonances suggest different electron delocalization patterns from plant ferredoxins". Biochemistry 30 (37): 9078–83. doi:10.1021/bi00101a024. PMID 1909889.
Coghlan VM, Vickery LE (1991). "Site-specific mutations in human ferredoxin that affect binding to ferredoxin reductase and cytochrome P450scc". J. Biol. Chem. 266 (28): 18606–12. PMID 1917982.
Chang CY, Wu DA, Mohandas TK, Chung BC (1990). "Structure, sequence, chromosomal location, and evolution of the human ferredoxin gene family". DNA Cell Biol. 9 (3): 205–12. doi:10.1089/dna.1990.9.205. PMID 2340092.
Chang CY, Wu DA, Lai CC, et al. (1989). "Cloning and structure of the human adrenodoxin gene". DNA 7 (9): 609–15. doi:10.1089/dna.1988.7.609. PMID 3229285.
Voutilainen R, Picado-Leonard J, DiBlasio AM, Miller WL (1988). "Hormonal and developmental regulation of adrenodoxin messenger ribonucleic acid in steroidogenic tissues". J. Clin. Endocrinol. Metab. 66 (2): 383–8. doi:10.1210/jcem-66-2-383. PMID 3339111.
Picado-Leonard J, Voutilainen R, Kao LC, et al. (1988). "Human adrenodoxin: cloning of three cDNAs and cycloheximide enhancement in JEG-3 cells". J. Biol. Chem. 263 (7): 3240–4. PMID 3343244.
Martsev SP, Chashchin VL, Akhrem AA (1985). "[Reconstruction and study of a multi-enzyme system by 11 beta-hydroxylase steroids]". Biokhimiia 50 (2): 243–57. PMID 3872685.
Geren LM, Millett F (1981). "Fluorescence energy transfer studies of the interaction between adrenodoxin and cytochrome c". J. Biol. Chem. 256 (20): 10485–9. PMID 6270113.
Pikuleva IA, Cao C, Waterman MR (1999). "An additional electrostatic interaction between adrenodoxin and P450c27 (CYP27A1) results in tighter binding than between adrenodoxin and p450scc (CYP11A1)". J. Biol. Chem. 274 (4): 2045–52. doi:10.1074/jbc.274.4.2045. PMID 9890963.
Kostic M, Pochapsky SS, Obenauer J, et al. (2002). "Comparison of functional domains in vertebrate-type ferredoxins". Biochemistry 41 (19): 5978–89. doi:10.1021/bi0200256. PMID 11993992.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=139241.
Johnson D, Norman S, Tuckey RC, Martin LL (2004). "Electrochemical behaviour of human adrenodoxin on a pyrolytic graphite electrode". Bioelectrochemistry (Amsterdam, Netherlands) 59 (1–2): 41–7. PMID 12699818.
Araya Z, Hosseinpour F, Bodin K, Wikvall K (2003). "Metabolism of 25-hydroxyvitamin D3 by microsomal and mitochondrial vitamin D3 25-hydroxylases (CYP2D25 and CYP27A1): a novel reaction by CYP27A1". Biochim. Biophys. Acta 1632 (1–3): 40–7. PMID 12782149.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=528928.
Derouet-Hümbert E, Roemer K, Bureik M (2005). "Adrenodoxin (Adx) and CYP11A1 (P450scc) induce apoptosis by the generation of reactive oxygen species in mitochondria". Biol. Chem. 386 (5): 453–61. doi:10.1515/BC.2005.054. PMID 15927889.

PDB gallery

1ayf: BOVINE ADRENODOXIN (OXIDIZED)

2bt6: RU(BPY)2(MBPY)-MODIFIED BOVINE ADRENODOXIN

FDX1

Function

References

Further reading