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3AEE

Crystal structure of porcine heart mitochondrial complex II bound with Atpenin A5

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrialpolymer62268313.21UniProt (Q0QF01)
Pfam (PF00890)
Pfam (PF02910)
Sus scrofa (Pig)Flavoprotein subunit of complex II, Fp
2B
(B)
Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrialpolymer25228764.21UniProt (Q007T0)
Pfam (PF13085)
Pfam (PF13534)
Sus scrofa (Pig)Iron-sulfur subunit of complex II, Ip
3C
(C)
Succinate dehydrogenase cytochrome b560 subunit, mitochondrialpolymer14015304.11UniProt (D0VWV4)
Pfam (PF01127)
Sus scrofa (Pig)Succinate-ubiquinone oxidoreductase cytochrome B large subunit, CYBL
4D
(D)
Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrialpolymer10310936.81UniProt (A5GZW8)
Pfam (PF05328)
Sus scrofa (Pig)Succinate-ubiquinone oxidoreductase cytochrome b small subunit, CybS, Succinate-ubiquinone reductase membrane anchor subunit, QPs3, CII-4, Succinate dehydrogenase complex subunit D
5E
(A)
FLAVIN-ADENINE DINUCLEOTIDEnon-polymer785.51Chemie (FAD)
6F
(B)
FE2/S2 (INORGANIC) CLUSTERnon-polymer175.81Chemie (FES)
7G
(B)
FE3-S4 CLUSTERnon-polymer295.81Chemie (F3S)
8H
(B)
IRON/SULFUR CLUSTERnon-polymer351.61Chemie (SF4)
9I
(C)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.51Chemie (HEM)
10J
(C)
3-[(2S,4S,5R)-5,6-DICHLORO-2,4-DIMETHYL-1-OXOHEXYL]-4-HYDROXY-5,6-DIMETHOXY-2(1H)-PYRIDINONEnon-polymer366.21Chemie (AT5)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight123318.2
Non-Polymers*Number of molecules6
Total formula weight2591.5
All*Total formula weight125909.8
*Water molecules are not included.

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PDB entries from 2025-07-30

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