2014
DOI: 10.1074/jbc.m113.535112
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DJ-1 Is a Copper Chaperone Acting on SOD1 Activation

Abstract: Background: DJ-1 and SOD1 are proteins involved in Parkinson disease and ALS, respectively. Results: A novel DJ-1 copper binding site is characterized together with its ability to activate SOD1 through copper transfer. Conclusion:We have identified a putative role for DJ-1 as a copper chaperone. Significance: Alterations of the coordination of the copper ion in DJ-1 may affect neurodegenerative etiopathogenesis.

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Cited by 80 publications
(77 citation statements)
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“…A noncovalent interaction of Prdx and DJ-1 may result from being similar-sized proteins, each from higher order oligomers. Indeed both Prdx and DJ-1 show overlap in function, each having both peroxidase (16,25) and molecular chaperone activities (9,22). The Cys-53 DJ-1-mediated interaction with Prdx2 is especially notable as most of the studies focus on Cys-106-mediated disulfide interactions with target proteins.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…A noncovalent interaction of Prdx and DJ-1 may result from being similar-sized proteins, each from higher order oligomers. Indeed both Prdx and DJ-1 show overlap in function, each having both peroxidase (16,25) and molecular chaperone activities (9,22). The Cys-53 DJ-1-mediated interaction with Prdx2 is especially notable as most of the studies focus on Cys-106-mediated disulfide interactions with target proteins.…”
Section: Discussionmentioning
confidence: 99%
“…DJ-1 was first identified as an oncogene (2) and has since been described as a causative gene for early-onset Parkinson disease (3,4). Although DJ-1 has protease (5-7) or chaperone (8,9) activities, most studies have focused on its protective role against oxidative stress (10 -15). Knock-out of the DJ-1 gene enhances hydrogen peroxide (H 2 O 2 ) and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-mediated cell death.…”
mentioning
confidence: 99%
“…11 Both structures are virtually identical to each other [root-mean-square deviation (rmsd) of 0.15 Å] (Figure 2 and Figure S3 of the Supporting Information) and to other structures of DJ-1 (rmsd of ≤0.15 Å). 4,5,11 The electron density maps of our two crystal structures reveal a large peak in the immediate vicinity of the key residue Cys106 of DJ-1. This peak is not observed in crystals of apo-DJ-1, 11,12 suggesting the presence of Zn(II) at this position ( Figure 2b and Figure S3 of the Supporting Information).…”
mentioning
confidence: 96%
“…166,167) Furthermore, DJ-1 directly binds to SOD1 to regulate its activity. [168][169][170] Although DJ-1 is an abundant protein in cells, the contribution level of reduction of oxidative stress by quenching ROS through self-oxidation of DJ-1 is thought to be less than 10% of the total contribution, and aforementioned reactions 2) and 3) contribute to the rest of the anti-oxidative stress function. DJ-1 mutants observed in PD patients have loss of or weaken anti-oxidative stress activity, 171) and DJ-1-knockout mice are more vulnerable to neuronal toxins such as 1-methyl-4-phenyl-1,2,3,6-tetrahydr (MPTP) than are wild-type mice.…”
Section: Anti-oxidative Stress Functionmentioning
confidence: 99%