1to5

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{{STRUCTURE_1to5| PDB=1to5 | SCENE= }}
{{STRUCTURE_1to5| PDB=1to5 | SCENE= }}
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'''Structure of the cytosolic Cu,Zn SOD from S. mansoni'''
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===Structure of the cytosolic Cu,Zn SOD from S. mansoni===
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==Overview==
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Cu,Zn superoxide dismutase (Cu,Zn SOD) is an essential enzyme for protecting cells from the toxic effects of reactive oxygen species. In humans, two distinct Cu,Zn SOD genes are located on chromosomes 4 and 21 and mutations in the latter have been associated with familial amyotrophic lateral sclerosis. Similarly, schistosomes (trematode parasites responsible for the chronically debilitating disease schistosomiasis) also produce two distinct Cu,Zn SODs, in this case one cytosolic and one bearing a signal peptide. The crystal structure of the cytosolic form of the enzyme from the human trematode Schistosoma mansoni (SmCtSOD) was solved and refined to a resolution of 2.2 A (space group P2(1)2(1)2(1), R = 17.6% and R(free) = 24.1%) and 1.55 A (space group P2(1), R = 15.7% and R(free) = 17.1%). This is the first report of a crystal structure of a Cu,Zn superoxide dismutase derived from a human parasite. Alternate positions for the catalytic copper and its water ligand were refined for the 1.55 A SmCtSOD model, but the most interesting structural differences between SmCtSOD and the human homologue reside in the loops used for electrostatic guidance of the substrate to the enzyme active site.
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(as it appears on PubMed at http://www.pubmed.gov), where 15333927 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15333927}}
==About this Structure==
==About this Structure==
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[[Category: Tanaka, T.]]
[[Category: Tanaka, T.]]
[[Category: Beta-barrel]]
[[Category: Beta-barrel]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 10:10:49 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 09:42:32 2008''

Revision as of 06:42, 28 July 2008

Image:1to5.png

Template:STRUCTURE 1to5

Structure of the cytosolic Cu,Zn SOD from S. mansoni

Template:ABSTRACT PUBMED 15333927

About this Structure

1TO5 is a Single protein structure of sequence from Schistosoma mansoni. Full crystallographic information is available from OCA.

Reference

Structure of the cytosolic Cu,Zn superoxide dismutase from Schistosoma mansoni., Cardoso RM, Silva CH, Ulian de Araujo AP, Tanaka T, Tanaka M, Garratt RC, Acta Crystallogr D Biol Crystallogr. 2004 Sep;60(Pt 9):1569-78. Epub 2004, Aug 26. PMID:15333927

Page seeded by OCA on Mon Jul 28 09:42:32 2008

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