| Structural highlights
Disease
[SODC_HUMAN] Defects in SOD1 are the cause of amyotrophic lateral sclerosis type 1 (ALS1) [MIM:105400]. ALS1 is a familial form of amyotrophic lateral sclerosis, a neurodegenerative disorder affecting upper and lower motor neurons and resulting in fatal paralysis. Sensory abnormalities are absent. Death usually occurs within 2 to 5 years. The etiology of amyotrophic lateral sclerosis is likely to be multifactorial, involving both genetic and environmental factors. The disease is inherited in 5-10% of cases leading to familial forms.[1] [2] [3] [4] [5] [6] [7] [8] [:][9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45]
Function
[SODC_HUMAN] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Key charged residues in Cu,Zn superoxide dismutase (Cu,Zn SOD) promote electrostatic steering of the superoxide substrate to the active site Cu ion, resulting in dismutation of superoxide to oxygen and hydrogen peroxide, Lys-136, along with the adjacent residues Glu-132 and Glu-133, forms a proposed electrostatic triad contributing to substrate recognition. Human Cu,Zn SODs with single-site replacements of Lys-136 by Arg,Ala, Gln, or Glu or with a triple-site substitution (Glu-132 and Glu-133 to Gln and Lys-136 to Ala) were made to test hypotheses regarding contributions of these residues to Cu,Zn SOD activity. The structural effects of these mutations were modeled computationally and validated by the X-ray crystallographic structure determination of Cu,Zn SOD having the Lys-136-to-Glu replacement. Brownian dynamics simulations and multiple-site titration calculations predicted mutant reaction rates as well as ionic strength and pH effects measured by pulse-radiolytic experiments. Lys-136-to-Glu charge reversal decreased dismutation activity 50% from 2.2 x 10(9) to 1.2 x 10(9) M-1 s-1 due to repulsion of negatively charged superoxide, whereas charge-neutralizing substitutions (Lys-136 to Gln or Ala) had a less dramatic influence. In contrast, the triple-mutant Cu,Zn SOD (all three charges in the electrostatic triad neutralized) surprisingly doubled the reaction rate compared with wild-type enzyme but introduced phosphate inhibition. Computational and experimental reaction rates decreased with increasing ionic strength in all of the Lys-136 mutants, with charge reversal having a more pronounced effect than charge neutralization, implying that local electrostatic effects still govern the dismutation rates. Multiple-site titration analysis showed that deprotonation events throughout the enzyme are likely responsible for the gradual decrease in SOD activity above pH 9.5 and predicted a pKa value of 11.7 for Lys-136. Overall, Lys-136 and Glu-132 make comparable contributions to substrate recognition but are less critical to enzyme function than Arg-143, which is both mechanistically and electrostatically essential. Thus, the sequence-conserved residues of this electrostatic triad are evidently important solely for their electrostatic properties, which maintain the high catalytic rate and turnover of Cu,Zn SOD while simultaneously providing specificity by selecting against binding by other anions.
Computational, pulse-radiolytic, and structural investigations of lysine-136 and its role in the electrostatic triad of human Cu,Zn superoxide dismutase.,Fisher CL, Cabelli DE, Hallewell RA, Beroza P, Lo TP, Getzoff ED, Tainer JA Proteins. 1997 Sep;29(1):103-12. PMID:9294870[46]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
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- ↑ Yonashiro R, Sugiura A, Miyachi M, Fukuda T, Matsushita N, Inatome R, Ogata Y, Suzuki T, Dohmae N, Yanagi S. Mitochondrial ubiquitin ligase MITOL ubiquitinates mutant SOD1 and attenuates mutant SOD1-induced reactive oxygen species generation. Mol Biol Cell. 2009 Nov;20(21):4524-30. doi: 10.1091/mbc.E09-02-0112. Epub 2009, Sep 9. PMID:19741096 doi:10.1091/mbc.E09-02-0112
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- ↑ Hart PJ, Liu H, Pellegrini M, Nersissian AM, Gralla EB, Valentine JS, Eisenberg D. Subunit asymmetry in the three-dimensional structure of a human CuZnSOD mutant found in familial amyotrophic lateral sclerosis. Protein Sci. 1998 Mar;7(3):545-55. PMID:9541385
- ↑ Elam JS, Taylor AB, Strange R, Antonyuk S, Doucette PA, Rodriguez JA, Hasnain SS, Hayward LJ, Valentine JS, Yeates TO, Hart PJ. Amyloid-like filaments and water-filled nanotubes formed by SOD1 mutant proteins linked to familial ALS. Nat Struct Biol. 2003 Jun;10(6):461-7. PMID:12754496 doi:10.1038/nsb935
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- ↑ Deng HX, Hentati A, Tainer JA, Iqbal Z, Cayabyab A, Hung WY, Getzoff ED, Hu P, Herzfeldt B, Roos RP, et al.. Amyotrophic lateral sclerosis and structural defects in Cu,Zn superoxide dismutase. Science. 1993 Aug 20;261(5124):1047-51. PMID:8351519
- ↑ Nakano R, Sato S, Inuzuka T, Sakimura K, Mishina M, Takahashi H, Ikuta F, Honma Y, Fujii J, Taniguchi N, et al.. A novel mutation in Cu/Zn superoxide dismutase gene in Japanese familial amyotrophic lateral sclerosis. Biochem Biophys Res Commun. 1994 Apr 29;200(2):695-703. PMID:8179602
- ↑ Hirano M, Fujii J, Nagai Y, Sonobe M, Okamoto K, Araki H, Taniguchi N, Ueno S. A new variant Cu/Zn superoxide dismutase (Val7-->Glu) deduced from lymphocyte mRNA sequences from Japanese patients with familial amyotrophic lateral sclerosis. Biochem Biophys Res Commun. 1994 Oct 28;204(2):572-7. PMID:7980516 doi:http://dx.doi.org/10.1006/bbrc.1994.2497
- ↑ Jones CT, Swingler RJ, Brock DJ. Identification of a novel SOD1 mutation in an apparently sporadic amyotrophic lateral sclerosis patient and the detection of Ile113Thr in three others. Hum Mol Genet. 1994 Apr;3(4):649-50. PMID:8069312
- ↑ Esteban J, Rosen DR, Bowling AC, Sapp P, McKenna-Yasek D, O'Regan JP, Beal MF, Horvitz HR, Brown RH Jr. Identification of two novel mutations and a new polymorphism in the gene for Cu/Zn superoxide dismutase in patients with amyotrophic lateral sclerosis. Hum Mol Genet. 1994 Jun;3(6):997-8. PMID:7951252
- ↑ Kostrzewa M, Burck-Lehmann U, Muller U. Autosomal dominant amyotrophic lateral sclerosis: a novel mutation in the Cu/Zn superoxide dismutase-1 gene. Hum Mol Genet. 1994 Dec;3(12):2261-2. PMID:7881433
- ↑ Aoki M, Ogasawara M, Matsubara Y, Narisawa K, Nakamura S, Itoyama Y, Abe K. Familial amyotrophic lateral sclerosis (ALS) in Japan associated with H46R mutation in Cu/Zn superoxide dismutase gene: a possible new subtype of familial ALS. J Neurol Sci. 1994 Oct;126(1):77-83. PMID:7836951
- ↑ Suthers G, Laing N, Wilton S, Dorosz S, Waddy H. "Sporadic" motoneuron disease due to familial SOD1 mutation with low penetrance. Lancet. 1994 Dec 24-31;344(8939-8940):1773. PMID:7997024
- ↑ Jones CT, Shaw PJ, Chari G, Brock DJ. Identification of a novel exon 4 SOD1 mutation in a sporadic amyotrophic lateral sclerosis patient. Mol Cell Probes. 1994 Aug;8(4):329-30. PMID:7870076 doi:http://dx.doi.org/S0890-8508(84)71046-2
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- ↑ Ikeda M, Abe K, Aoki M, Ogasawara M, Kameya T, Watanabe M, Shoji M, Hirai S, Itoyama Y. A novel point mutation in the Cu/Zn superoxide dismutase gene in a patient with familial amyotrophic lateral sclerosis. Hum Mol Genet. 1995 Mar;4(3):491-2. PMID:7795609
- ↑ Yulug IG, Katsanis N, de Belleroche J, Collinge J, Fisher EM. An improved protocol for the analysis of SOD1 gene mutations, and a new mutation in exon 4. Hum Mol Genet. 1995 Jun;4(6):1101-4. PMID:7655468
- ↑ Sjalander A, Beckman G, Deng HX, Iqbal Z, Tainer JA, Siddique T. The D90A mutation results in a polymorphism of Cu,Zn superoxide dismutase that is prevalent in northern Sweden and Finland. Hum Mol Genet. 1995 Jun;4(6):1105-8. PMID:7655469
- ↑ Deng HX, Tainer JA, Mitsumoto H, Ohnishi A, He X, Hung WY, Zhao Y, Juneja T, Hentati A, Siddique T. Two novel SOD1 mutations in patients with familial amyotrophic lateral sclerosis. Hum Mol Genet. 1995 Jun;4(6):1113-6. PMID:7655471
- ↑ Orrell R, de Belleroche J, Marklund S, Bowe F, Hallewell R. A novel SOD mutant and ALS. Nature. 1995 Apr 6;374(6522):504-5. PMID:7700376 doi:http://dx.doi.org/10.1038/374504a0
- ↑ Andersen PM, Nilsson P, Ala-Hurula V, Keranen ML, Tarvainen I, Haltia T, Nilsson L, Binzer M, Forsgren L, Marklund SL. Amyotrophic lateral sclerosis associated with homozygosity for an Asp90Ala mutation in CuZn-superoxide dismutase. Nat Genet. 1995 May;10(1):61-6. PMID:7647793 doi:http://dx.doi.org/10.1038/ng0595-61
- ↑ Ikeda M, Abe K, Aoki M, Sahara M, Watanabe M, Shoji M, St George-Hyslop PH, Hirai S, Itoyama Y. Variable clinical symptoms in familial amyotrophic lateral sclerosis with a novel point mutation in the Cu/Zn superoxide dismutase gene. Neurology. 1995 Nov;45(11):2038-42. PMID:7501156
- ↑ Sapp PC, Rosen DR, Hosler BA, Esteban J, McKenna-Yasek D, O'Regan JP, Horvitz HR, Brown RH Jr. Identification of three novel mutations in the gene for Cu/Zn superoxide dismutase in patients with familial amyotrophic lateral sclerosis. Neuromuscul Disord. 1995 Sep;5(5):353-7. PMID:7496169
- ↑ Hosler BA, Nicholson GA, Sapp PC, Chin W, Orrell RW, de Belleroche JS, Esteban J, Hayward LJ, Mckenna-Yasek D, Yeung L, Cherryson AK, Dench JE, Wilton SD, Laing NG, Horvitz HR, Brown RH Jr. Three novel mutations and two variants in the gene for Cu/Zn superoxide dismutase in familial amyotrophic lateral sclerosis. Neuromuscul Disord. 1996 Oct;6(5):361-6. PMID:8938700
- ↑ Morita M, Aoki M, Abe K, Hasegawa T, Sakuma R, Onodera Y, Ichikawa N, Nishizawa M, Itoyama Y. A novel two-base mutation in the Cu/Zn superoxide dismutase gene associated with familial amyotrophic lateral sclerosis in Japan. Neurosci Lett. 1996 Feb 23;205(2):79-82. PMID:8907321
- ↑ Watanabe M, Aoki M, Abe K, Shoji M, Iizuka T, Ikeda Y, Hirai S, Kurokawa K, Kato T, Sasaki H, Itoyama Y. A novel missense point mutation (S134N) of the Cu/Zn superoxide dismutase gene in a patient with familial motor neuron disease. Hum Mutat. 1997;9(1):69-71. PMID:8990014 doi:<69::AID-HUMU14>3.0.CO;2-N 10.1002/(SICI)1098-1004(1997)9:1<69::AID-HUMU14>3.0.CO;2-N
- ↑ Kawamata J, Shimohama S, Takano S, Harada K, Ueda K, Kimura J. Novel G16S (GGC-AGC) mutation in the SOD-1 gene in a patient with apparently sporadic young-onset amyotrophic lateral sclerosis. Hum Mutat. 1997;9(4):356-8. PMID:9101297 doi:<356::AID-HUMU9>3.0.CO;2-3 10.1002/(SICI)1098-1004(1997)9:4<356::AID-HUMU9>3.0.CO;2-3
- ↑ Orrell RW, Marklund SL, deBelleroche JS. Familial ALS is associated with mutations in all exons of SOD1: a novel mutation in exon 3 (Gly72Ser). J Neurol Sci. 1997 Dec 9;153(1):46-9. PMID:9455977
- ↑ Kikugawa K, Nakano R, Inuzuka T, Kokubo Y, Narita Y, Kuzuhara S, Yoshida S, Tsuji S. A missense mutation in the SOD1 gene in patients with amyotrophic lateral sclerosis from the Kii Peninsula and its vicinity, Japan. Neurogenetics. 1997 Sep;1(2):113-5. PMID:10732812
- ↑ Bereznai B, Winkler A, Borasio GD, Gasser T. A novel SOD1 mutation in an Austrian family with amyotrophic lateral sclerosis. Neuromuscul Disord. 1997 Mar;7(2):113-6. PMID:9131652
- ↑ Ratovitski T, Corson LB, Strain J, Wong P, Cleveland DW, Culotta VC, Borchelt DR. Variation in the biochemical/biophysical properties of mutant superoxide dismutase 1 enzymes and the rate of disease progression in familial amyotrophic lateral sclerosis kindreds. Hum Mol Genet. 1999 Aug;8(8):1451-60. PMID:10400992
- ↑ Penco S, Schenone A, Bordo D, Bolognesi M, Abbruzzese M, Bugiani O, Ajmar F, Garre C. A SOD1 gene mutation in a patient with slowly progressing familial ALS. Neurology. 1999 Jul 22;53(2):404-6. PMID:10430435
- ↑ Murakami T, Warita H, Hayashi T, Sato K, Manabe Y, Mizuno S, Yamane K, Abe K. A novel SOD1 gene mutation in familial ALS with low penetrance in females. J Neurol Sci. 2001 Aug 15;189(1-2):45-7. PMID:11535232
- ↑ Gellera C, Castellotti B, Riggio MC, Silani V, Morandi L, Testa D, Casali C, Taroni F, Di Donato S, Zeviani M, Mariotti C. Superoxide dismutase gene mutations in Italian patients with familial and sporadic amyotrophic lateral sclerosis: identification of three novel missense mutations. Neuromuscul Disord. 2001 May;11(4):404-10. PMID:11369193
- ↑ Alexander MD, Traynor BJ, Miller N, Corr B, Frost E, McQuaid S, Brett FM, Green A, Hardiman O. "True" sporadic ALS associated with a novel SOD-1 mutation. Ann Neurol. 2002 Nov;52(5):680-3. PMID:12402272 doi:10.1002/ana.10369
- ↑ Niwa J, Ishigaki S, Hishikawa N, Yamamoto M, Doyu M, Murata S, Tanaka K, Taniguchi N, Sobue G. Dorfin ubiquitylates mutant SOD1 and prevents mutant SOD1-mediated neurotoxicity. J Biol Chem. 2002 Sep 27;277(39):36793-8. Epub 2002 Jul 26. PMID:12145308 doi:10.1074/jbc.M206559200
- ↑ Andersen PM, Sims KB, Xin WW, Kiely R, O'Neill G, Ravits J, Pioro E, Harati Y, Brower RD, Levine JS, Heinicke HU, Seltzer W, Boss M, Brown RH Jr. Sixteen novel mutations in the Cu/Zn superoxide dismutase gene in amyotrophic lateral sclerosis: a decade of discoveries, defects and disputes. Amyotroph Lateral Scler Other Motor Neuron Disord. 2003 Jun;4(2):62-73. PMID:14506936
- ↑ Furukawa Y, Kaneko K, Yamanaka K, O'Halloran TV, Nukina N. Complete loss of post-translational modifications triggers fibrillar aggregation of SOD1 in the familial form of amyotrophic lateral sclerosis. J Biol Chem. 2008 Aug 29;283(35):24167-76. doi: 10.1074/jbc.M802083200. Epub 2008, Jun 13. PMID:18552350 doi:10.1074/jbc.M802083200
- ↑ Banci L, Bertini I, Boca M, Girotto S, Martinelli M, Valentine JS, Vieru M. SOD1 and amyotrophic lateral sclerosis: mutations and oligomerization. PLoS One. 2008 Feb 27;3(2):e1677. doi: 10.1371/journal.pone.0001677. PMID:18301754 doi:10.1371/journal.pone.0001677
- ↑ del Grande A, Luigetti M, Conte A, Mancuso I, Lattante S, Marangi G, Stipa G, Zollino M, Sabatelli M. A novel L67P SOD1 mutation in an Italian ALS patient. Amyotroph Lateral Scler. 2011 Mar;12(2):150-2. doi: 10.3109/17482968.2011.551939., Epub 2011 Jan 19. PMID:21247266 doi:10.3109/17482968.2011.551939
- ↑ Chio A, Borghero G, Pugliatti M, Ticca A, Calvo A, Moglia C, Mutani R, Brunetti M, Ossola I, Marrosu MG, Murru MR, Floris G, Cannas A, Parish LD, Cossu P, Abramzon Y, Johnson JO, Nalls MA, Arepalli S, Chong S, Hernandez DG, Traynor BJ, Restagno G. Large proportion of amyotrophic lateral sclerosis cases in Sardinia due to a single founder mutation of the TARDBP gene. Arch Neurol. 2011 May;68(5):594-8. doi: 10.1001/archneurol.2010.352. Epub 2011, Jan 10. PMID:21220647 doi:10.1001/archneurol.2010.352
- ↑ Fisher CL, Cabelli DE, Hallewell RA, Beroza P, Lo TP, Getzoff ED, Tainer JA. Computational, pulse-radiolytic, and structural investigations of lysine-136 and its role in the electrostatic triad of human Cu,Zn superoxide dismutase. Proteins. 1997 Sep;29(1):103-12. PMID:9294870
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