4KCE

Crystal structure of the mitochondrial peroxiredoxin from Leishmania braziliensis in the dimeric form


Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

ChainDomainClassArchitectureTopologyHomology
A, B
3.40.30.10 Alpha Beta 3-Layer(aba) Sandwich Glutaredoxin Glutaredoxin
A, B
3.40.30.10 Alpha Beta 3-Layer(aba) Sandwich Glutaredoxin Glutaredoxin

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
A, B
PF00578AhpC/TSA family (AhpC-TSA)AhpC/TSA familyThis family contains proteins related to alkyl hydroperoxide reductase (AhpC) and thiol specific antioxidant (TSA).Domain
A, B
PF10417C-terminal domain of 1-Cys peroxiredoxin (1-cysPrx_C)C-terminal domain of 1-Cys peroxiredoxinThis is the C-terminal domain of 1-Cys peroxiredoxin (1-cysPrx), a member of the peroxiredoxin superfamily which protect cells against membrane oxidation through glutathione (GSH)-dependent reduction of phospholipid hydroperoxides to corresponding al ...This is the C-terminal domain of 1-Cys peroxiredoxin (1-cysPrx), a member of the peroxiredoxin superfamily which protect cells against membrane oxidation through glutathione (GSH)-dependent reduction of phospholipid hydroperoxides to corresponding alcohols [1]. The C-terminal domain is crucial for providing the extra cysteine necessary for dimerisation of the whole molecule. Loss of the enzyme's peroxidase activity is associated with oxidation of the catalytic cysteine, upstream of this domain; and glutathionylation, presumably through its disruption of protein structure, facilitates access for GSH, resulting in spontaneous reduction of the mixed disulfide to the sulfhydryl and consequent activation of the enzyme [2]. The domain is associated with family AhpC-TSA, Pfam:PF00578, which carries the catalytic cysteine.
Domain