Structural highlights
3vrb is a 8 chain structure with sequence from Ascaris suum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , , , , , , |
| Related: | 3vr8 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[DHSD_ASCSU] Membrane-anchoring subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q) (By similarity).
Publication Abstract from PubMed
In the anaerobic respiratory chain of the parasitic nematode Ascaris suum, complex II couples the reduction of fumarate to the oxidation of rhodoquinol, a reverse reaction catalyzed by mammalian complex II. In this study, the first structure of anaerobic complex II of mitochondria was determined. The structure, composed of four subunits and five co-factors, is similar to that of aerobic complex II, except for an extra peptide found in the smallest anchor subunit of the A. suum enzyme. We discuss herein the structure-function relationship of the enzyme and the critical role of the low redox potential of rhodoquinol in the fumarate reduction of A. suum complex II.
Crystal structure of mitochondrial quinol-fumarate reductase from the parasitic nematode Ascaris suum.,Shimizu H, Osanai A, Sakamoto K, Inaoka DK, Shiba T, Harada S, Kita K J Biochem. 2012 Jun;151(6):589-92. Epub 2012 May 9. PMID:22577165[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Shimizu H, Osanai A, Sakamoto K, Inaoka DK, Shiba T, Harada S, Kita K. Crystal structure of mitochondrial quinol-fumarate reductase from the parasitic nematode Ascaris suum. J Biochem. 2012 Jun;151(6):589-92. Epub 2012 May 9. PMID:22577165 doi:10.1093/jb/mvs051
