1NEK: Complex II (Succinate Dehydrogenase) From E. Coli with ubiquinone bound

PDB ID: 1NEKDownload
MMDB ID: 22111
PDB Deposition Date: 2002/12/11
Updated in MMDB: 2024/12
Experimental Method:
x-ray diffraction
Resolution: 2.6  Å
Source Organism:
Similar Structures:
Biological Unit for 1NEK: tetrameric; determined by author and by software (PISA)
Molecular Components in 1NEK
Label Count Molecule
Proteins (4 molecules)
1
Succinate Dehydrogenase Flavoprotein Subunit
(Gene symbol: sdhA)
Molecule annotation
1
Succinate Dehydrogenase Iron-sulfur Protein
(Gene symbol: sdhB)
Molecule annotation
1
Succinate Dehydrogenase Cytochrome B-556 Subunit
(Gene symbol: sdhC)
Molecule annotation
1
Succinate Dehydrogenase Hydrophobic Membrane Anchor Protein
(Gene symbol: sdhD)
Molecule annotation
Chemicals and Non-standard biopolymers (11 molecules)
1
1
OXALOACETATE IONOXALOACETATE ION
2
2
CALCIUM IONCALCIUM ION
3
1
FLAVIN-ADENINE DINUCLEOTIDEFLAVIN-ADENINE DINUCLEOTIDE
4
1
FE2/S2 (INORGANIC) CLUSTERFE2/S2 (INORGANIC) CLUSTER
5
1
IRON/SULFUR CLUSTERIRON/SULFUR CLUSTER
6
1
FE3-S4 CLUSTERFE3-S4 CLUSTER
7
1
PROTOPORPHYRIN IX CONTAINING FEPROTOPORPHYRIN IX CONTAINING FE
8
1
CARDIOLIPINCARDIOLIPIN
9
1
L-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINEL-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINE
10
1
UBIQUINONE-2UBIQUINONE-2
* Click molecule labels to explore molecular sequence information.
Citing MMDB
Madej T, Lanczycki CJ, Zhang D, Thiessen PA, Geer RC, Marchler-Bauer A, Bryant SH. " MMDB and VAST+: tracking structural similarities between macromolecular complexes. Nucleic Acids Res. 2014 Jan; 42(Database issue):D297-303