SMTL ID : 4kx6.1 (1 other biounit)

Plasticity of the quinone-binding site of the complex II homolog quinol:fumarate reductase

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.95 Å

Oligo State

hetero-1-1-1-1-mer

Ligands

1 x FAD: FLAVIN-ADENINE DINUCLEOTIDE(Non-covalent)

FAD.1: 37 residues within 4Å: Chain A: G.12, A.13, G.14, G.15, A.16, S.37, K.38, V.39, S.44, H.45, T.46, A.48, A.49, E.50, G.51, G.52, H.156, F.157, V.158, A.192, T.193, G.194, T.204, N.205, D.212, M.216, L.243, H.356, Y.357, G.379, E.380, R.391, S.394, N.395, S.396, L.397, L.400 26 PLIP interactions: 26 interactions with chain A Hydrophobic interactions: A:A.49, A:L.243 Hydrogen bonds: A:A.13, A:A.13, A:G.15, A:A.16, A:K.38, A:K.38, A:V.39, A:H.45, A:T.46, A:T.46, A:E.50, A:G.51, A:G.52, A:G.52, A:V.158, A:V.158, A:G.194, A:E.380, A:R.391, A:S.394, A:S.396, A:S.396, A:L.397 pi-Cation interactions: A:H.356

1 x FES: FE2/S2 (INORGANIC) CLUSTER(Non-covalent)

FES.2: 9 residues within 4Å: Chain B: S.56, C.57, R.58, A.60, C.62, G.63, S.64, C.65, C.77 4 PLIP interactions: 4 interactions with chain B, Metal complexes: B:C.57, B:C.62, B:C.65, B:C.77

1 x F3S: FE3-S4 CLUSTER(Non-covalent)

F3S.3: 11 residues within 4Å: Chain B: C.158, Q.160, C.204, T.205, F.206, V.207, G.208, Y.209, C.210, A.221, I.224 3 PLIP interactions: 3 interactions with chain B, Metal complexes: B:C.158, B:C.204, B:C.210

1 x SF4: IRON/SULFUR CLUSTER(Non-covalent)

SF4.4: 9 residues within 4Å: Chain B: C.148, I.149, N.150, C.151, G.152, C.154, A.171, C.214, P.215 4 PLIP interactions: 4 interactions with chain B, Metal complexes: B:C.148, B:C.151, B:C.154, B:C.214

1 x MQ7: MENAQUINONE-7(Non-covalent)

MQ7.5: 16 residues within 4Å: Chain B: W.202, C.204, T.205, F.206, Q.225, K.228 Chain C: R.28, W.86, L.89, A.90 Chain D: E.11, W.15, F.18, G.19, H.81, H.85 10 PLIP interactions: 5 interactions with chain B, 3 interactions with chain C, 2 interactions with chain D Hydrophobic interactions: B:W.202, B:F.206, B:K.228, C:W.86, C:W.86, C:L.89, D:F.18, D:F.18 Hydrogen bonds: B:Q.225, B:K.228

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Singh, P.K. et al., Plasticity of the Quinone-binding Site of the Complex II Homolog Quinol:Fumarate Reductase. J.Biol.Chem. (2013)

Release Date

2013-07-17

Peptides

Fumarate reductase flavoprotein subunit: A
Fumarate reductase (Anaerobic), Fe-S subunit: B
Fumarate reductase subunit C: C
Fumarate reductase subunit D: D

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Membrane

We predict this structure to be a membrane protein.
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Fumarate reductase flavoprotein subunit

Fumarate reductase (Anaerobic), Fe-S subunit

Fumarate reductase subunit C

Fumarate reductase subunit D

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